From 9db851ddd5de56c81e9412a09a950acd1106ad66 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Sat, 31 Jan 2026 19:08:42 +0300
Subject: [PATCH 01/31] Back to Ubuntu16 for cpython3.13, disable deadsnakes

---
 .../Build_wheels_for_cpython313t_x64_u16.yml         | 12 ++++++------
 .../Build_wheels_for_cpython313t_x86_u16.yml         |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml b/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml
index 4311ccf12..7df0c0ba0 100644
--- a/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.13-nogil x64 on Ubuntu22 with GCC-10 All warnings
+name: Build wheels for CPython3.13-nogil x64 on Ubuntu16 with GCC-5 All warnings
 
 on: [push, pull_request]
 
@@ -19,7 +19,7 @@ jobs:
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: jammy
+            release: xenian
             mirror: http://azure.archive.ubuntu.com/ubuntu
             getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
             pypkg: python3.13-nogil
@@ -63,10 +63,10 @@ jobs:
           sudo mount none ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/proc -t proc
           sudo mount none ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/dev/pts -t devpts
           sudo mount none ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/sys -t sysfs
-          echo "# deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/python ubuntu-${{matrix.os.release}} main" > rusoft-python.list
-          echo "# deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/backports ubuntu-${{matrix.os.release}} main" > rusoft-backports.list
-          echo "# deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/packages ubuntu-${{matrix.os.release}} main" > rusoft-packages.list
-          echo " deb [trusted=yes] http://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu ${{matrix.os.release}} main" > deadsnakes.list
+          echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/python ubuntu-${{matrix.os.release}} main" > rusoft-python.list
+          echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/backports ubuntu-${{matrix.os.release}} main" > rusoft-backports.list
+          echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/packages ubuntu-${{matrix.os.release}} main" > rusoft-packages.list
+          echo "# deb [trusted=yes] http://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu ${{matrix.os.release}} main" > deadsnakes.list
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt update
           sudo cp -v ./*.list ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/etc/apt/sources.list.d
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'cd /etc/apt/trusted.gpg.d && wget http://packages.rusoft.ru/apt/public.gpg -Orusoft.gpg'
diff --git a/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml
index 5f11f4bda..dee19a8c9 100644
--- a/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml
@@ -69,7 +69,7 @@ jobs:
           echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/python ubuntu-${{matrix.os.release}} main" > rusoft-python.list
           echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/backports ubuntu-${{matrix.os.release}} main" > rusoft-backports.list
           echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/packages ubuntu-${{matrix.os.release}} main" > rusoft-packages.list
-          echo " deb [trusted=yes] http://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu ${{matrix.os.release}} main" > deadsnakes.list
+          echo "# deb [trusted=yes] http://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu ${{matrix.os.release}} main" > deadsnakes.list
           false && sudo find ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} -iname apt
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt update
           sudo cp -v ./*.list ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/etc/apt/sources.list.d

From 49fd5e45f80556ef0ae899eea7802ff3aa11cafc Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Sat, 31 Jan 2026 22:07:49 +0300
Subject: [PATCH 02/31] fix action name, release

---
 .github/workflows/Build_wheels_for_cpython313t_x64_u16.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml b/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml
index 7df0c0ba0..3444cbf99 100644
--- a/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+22 amd64 CPython 3.13-nogil
+          - name: Ubuntu 24+16 amd64 CPython 3.13-nogil
             runs-on: ubuntu-latest
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: xenian
+            release: xenial
             mirror: http://azure.archive.ubuntu.com/ubuntu
             getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
             pypkg: python3.13-nogil

From fd2526797c2a6b095bff2e9434d7ee015a24189f Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Sun, 1 Feb 2026 20:23:59 +0300
Subject: [PATCH 03/31] Its like x86 build uses only libc 2.4+ symbols

---
 .github/workflows/Build_wheels_for_cpython313t_x86_u16.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml
index dee19a8c9..0719d94c4 100644
--- a/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml
@@ -29,7 +29,7 @@ jobs:
             pypkgexe: python3.13t
             #pypkgadd: python3.13-distutils
             pyengine_tag: cp313-cp313t
-            libc_tag: manylinux_2_14
+            libc_tag: manylinux_2_4
     steps:
       - name: Checkout code
         uses: actions/checkout@v4

From 294785ccd04c152b697dc3f50f4289152d20e8ee Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Tue, 3 Feb 2026 15:52:10 +0300
Subject: [PATCH 04/31] For cpython3.12 x86 libc tag is 2.4

---
 .github/workflows/Build_wheels_for_cpython312_x86_u16.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/Build_wheels_for_cpython312_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython312_x86_u16.yml
index 97480dff6..8f7d5cd15 100644
--- a/.github/workflows/Build_wheels_for_cpython312_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython312_x86_u16.yml
@@ -24,7 +24,7 @@ jobs:
             getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
             pypkg: python3.12
             pyengine_tag: cp312-cp312
-            libc_tag: manylinux_2_14
+            libc_tag: manylinux_2_4
     steps:
       - name: Checkout code
         uses: actions/checkout@v4

From 8acece49789a67af4d3f7c0c4090540e89f9a41a Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Tue, 3 Feb 2026 21:07:58 +0300
Subject: [PATCH 05/31] Libc for cpython3.13 x86 needed 2.4+

---
 .github/workflows/Build_wheels_for_cpython313_x86_u16.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/Build_wheels_for_cpython313_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython313_x86_u16.yml
index f121beff7..d22602c8a 100644
--- a/.github/workflows/Build_wheels_for_cpython313_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython313_x86_u16.yml
@@ -24,7 +24,7 @@ jobs:
             getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
             pypkg: python3.13
             pyengine_tag: cp313-cp313
-            libc_tag: manylinux_2_14
+            libc_tag: manylinux_2_4
     steps:
       - name: Checkout code
         uses: actions/checkout@v4

From a9a5cc4120d7d6842b66ddf523061f1a739f150f Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Tue, 3 Feb 2026 21:10:02 +0300
Subject: [PATCH 06/31] Libc for cpython3.14(-nogil) x86 needed 2.4+

---
 .github/workflows/Build_wheels_for_cpython314_x86_u16.yml  | 2 +-
 .github/workflows/Build_wheels_for_cpython314t_x86_u16.yml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython314_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython314_x86_u16.yml
index d9974a334..a9add75e7 100644
--- a/.github/workflows/Build_wheels_for_cpython314_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython314_x86_u16.yml
@@ -24,7 +24,7 @@ jobs:
             getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
             pypkg: python3.14
             pyengine_tag: cp314-cp314
-            libc_tag: manylinux_2_14
+            libc_tag: manylinux_2_4
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
diff --git a/.github/workflows/Build_wheels_for_cpython314t_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython314t_x86_u16.yml
index 32e6e0f92..cc2c53f12 100644
--- a/.github/workflows/Build_wheels_for_cpython314t_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython314t_x86_u16.yml
@@ -29,7 +29,7 @@ jobs:
             pypkgexe: python3.14t
             #pypkgadd: python3.13-distutils
             pyengine_tag: cp314-cp314t
-            libc_tag: manylinux_2_14
+            libc_tag: manylinux_2_4
     steps:
       - name: Checkout code
         uses: actions/checkout@v4

From 54de824230d3fbd974368cb9b0565f40278485b8 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Tue, 3 Feb 2026 21:18:27 +0300
Subject: [PATCH 07/31] Libc for cpython3.15(-nogil) x86 needed 2.4+

---
 .github/workflows/Build_wheels_for_cpython315_x86_u16.yml  | 2 +-
 .github/workflows/Build_wheels_for_cpython315t_x86_u16.yml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython315_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython315_x86_u16.yml
index 4d96628b2..714def95e 100644
--- a/.github/workflows/Build_wheels_for_cpython315_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython315_x86_u16.yml
@@ -27,7 +27,7 @@ jobs:
             pypkg: python3.15
             #pypkgadd: python3.13-distutils
             pyengine_tag: cp315-cp315
-            libc_tag: manylinux_2_14
+            libc_tag: manylinux_2_4
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
diff --git a/.github/workflows/Build_wheels_for_cpython315t_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython315t_x86_u16.yml
index e7e1bca9b..b055275ca 100644
--- a/.github/workflows/Build_wheels_for_cpython315t_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython315t_x86_u16.yml
@@ -29,7 +29,7 @@ jobs:
             pypkgexe: python3.15t
             #pypkgadd: python3.13-distutils
             pyengine_tag: cp315-cp315t
-            libc_tag: manylinux_2_14
+            libc_tag: manylinux_2_4
     steps:
       - name: Checkout code
         uses: actions/checkout@v4

From 3f0e8810e1782ae21230b9ea5bc8425f4565cac0 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Tue, 10 Feb 2026 22:48:43 +0300
Subject: [PATCH 08/31] Use bionic, libc tag 2_14 for amd64

---
 .github/workflows/Build_wheels_for_cpython27_x86_64.yml  | 2 +-
 .github/workflows/Build_wheels_for_cpython27_x86_ext.yml | 4 ++--
 .github/workflows/Build_wheels_for_cpython34_x86.yml     | 6 +++---
 .github/workflows/Build_wheels_for_cpython34_x86_64.yml  | 8 ++++----
 4 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
index 2d216ce3e..6bc8895f2 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
@@ -26,7 +26,7 @@ jobs:
             getpipurl: https://bootstrap.pypa.io/pip/2.7/get-pip.py
             pypkg: python2.7
             pyengine_tag: cp27-cp27mu
-            libc_tag: manylinux_2_4
+            libc_tag: manylinux_2_14
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml b/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
index 6f9d0c612..3f95dff91 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython2.7 x86 on Ubuntu16 with GCC-5 with All warnings, test external build
+name: Build wheels for CPython2.7 x86 on Ubuntu18 with GCC-7 with All warnings, test external build
 
 on: [push, pull_request]
 
@@ -19,7 +19,7 @@ jobs:
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "2.7"
diff --git a/.github/workflows/Build_wheels_for_cpython34_x86.yml b/.github/workflows/Build_wheels_for_cpython34_x86.yml
index ba01e788a..c80a0509a 100644
--- a/.github/workflows/Build_wheels_for_cpython34_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython34_x86.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.4 x86 on Ubuntu16
+name: Build wheels for CPython3.4 x86 on Ubuntu18
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 i386 CPython 3.4
+          - name: Ubuntu 24+18 i386 CPython 3.4
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "3.4"
diff --git a/.github/workflows/Build_wheels_for_cpython34_x86_64.yml b/.github/workflows/Build_wheels_for_cpython34_x86_64.yml
index 0946db31c..e2b5b851d 100644
--- a/.github/workflows/Build_wheels_for_cpython34_x86_64.yml
+++ b/.github/workflows/Build_wheels_for_cpython34_x86_64.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.4 x86_64 on Ubuntu16
+name: Build wheels for CPython3.4 x86_64 on Ubuntu18
 
 on: [push, pull_request]
 
@@ -14,19 +14,19 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 amd64 CPython 3.4
+          - name: Ubuntu 24+18 amd64 CPython 3.4
             runs-on: ubuntu-latest
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "3.4"
             getpipurl: https://bootstrap.pypa.io/pip/3.4/get-pip.py
             pypkg: python3.4
             pyengine_tag: cp34-cp34m
-            libc_tag: manylinux_2_4
+            libc_tag: manylinux_2_14
     steps:
       - name: Checkout code
         uses: actions/checkout@v4

From 8192d2a1ae72d39c16fb66645c7e63f09e82262c Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Tue, 10 Feb 2026 22:59:01 +0300
Subject: [PATCH 09/31] Skip cpython3.6/3.8 build for windows as it fails for
 unknown reason, should make seperate action for them

---
 .github/workflows/build-wheels.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build-wheels.yml b/.github/workflows/build-wheels.yml
index df2e15184..8a0462926 100644
--- a/.github/workflows/build-wheels.yml
+++ b/.github/workflows/build-wheels.yml
@@ -298,7 +298,7 @@ jobs:
           CIBW_BUILD: ${{ matrix.cibw.build }}
           CIBW_BUILD_VERBOSITY: 2
           # Skip 32-bit builds // NO
-          # CIBW_SKIP: '*-win32 *_i686'
+          CIBW_SKIP: 'cp36-win* cp38-win*'
           CIBW_MANYLINUX_I686_IMAGE: ${{ matrix.cibw.manylinux }}
           CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.cibw.manylinux }}
           CIBW_MUSLLINUX_I686_IMAGE: ${{ matrix.cibw.musllinux }}
@@ -330,7 +330,7 @@ jobs:
           CIBW_BUILD: ${{ matrix.cibw.build }}
           CIBW_BUILD_VERBOSITY: 2
           # Skip 32-bit builds // NO
-          # CIBW_SKIP: '*-win32 *_i686'
+          CIBW_SKIP: 'cp36-win* cp38-win*'
           CIBW_MANYLINUX_I686_IMAGE: ${{ matrix.cibw.manylinux }}
           CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.cibw.manylinux }}
           CIBW_MANYLINUX_AARCH64_IMAGE: ${{ matrix.cibw.manylinux }}
@@ -363,7 +363,7 @@ jobs:
           CIBW_BUILD: ${{ matrix.cibw.build }}
           CIBW_BUILD_VERBOSITY: 2
           # Skip 32-bit builds // NO
-          # CIBW_SKIP: '*-win32 *_i686'
+          CIBW_SKIP: 'cp36-win* cp38-win*'
           CIBW_MANYLINUX_I686_IMAGE: ${{ matrix.cibw.manylinux }}
           CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.cibw.manylinux }}
           CIBW_MANYLINUX_AARCH64_IMAGE: ${{ matrix.cibw.manylinux }}

From f6581c67936dd2d96ad99e2f17755535f8f92838 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Thu, 12 Feb 2026 12:59:30 +0300
Subject: [PATCH 10/31] Update actions for cpython2.7

---
 .github/workflows/Build_wheels_for_cpython27_x86.yml     | 2 +-
 .github/workflows/Build_wheels_for_cpython27_x86_64.yml  | 2 +-
 .github/workflows/Build_wheels_for_cpython27_x86_ext.yml | 9 ++++-----
 3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86.yml b/.github/workflows/Build_wheels_for_cpython27_x86.yml
index 4eea46a5e..4395c5010 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86.yml
@@ -92,7 +92,7 @@ jobs:
         run: |
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install --no-install-recommends -y ${{matrix.os.pypkg}}-dev gcc pkg-config ${{matrix.os.pypkgadd}}
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "wget ${{matrix.os.getpipurl}} -O get-pip.py && ${{matrix.os.pypkg}} get-pip.py"
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkg}} -m pip install -U 'setuptools'" 
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkg}} -m pip install -U 'setuptools<72'" 
                     
       - name: Pepare source and build wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
index 6bc8895f2..5afdfff5d 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
@@ -92,7 +92,7 @@ jobs:
         run: |
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y ${{matrix.os.pypkg}}-dev gcc pkg-config ${{matrix.os.pypkgadd}}
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "wget ${{matrix.os.getpipurl}} -O get-pip.py && ${{matrix.os.pypkg}} get-pip.py || true"
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkg}} -m pip install -U 'setuptools'" 
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkg}} -m pip install -U 'setuptools<72'" 
                     
       - name: Pepare source and build wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml b/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
index 3f95dff91..df4628201 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 i386 CPython 2.7
+          - name: Ubuntu 24+18 i386 CPython 2.7
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
@@ -88,10 +88,9 @@ jobs:
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt-cache madison clang-18
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y ${{matrix.os.pypkg}}-dev gcc pkg-config ${{matrix.os.pypkgadd}}
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "wget ${{matrix.os.getpipurl}} -O get-pip.py && ${{matrix.os.pypkg}} get-pip.py"
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkg}} -m pip install -U 'setuptools'" 
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkg}} -m pip install -U 'setuptools<72'" 
                     
       - name: Pepare source and build wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
@@ -103,8 +102,8 @@ jobs:
           false && sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} env
           
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} pkg-config libzstd --modversion 
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC-5
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc-5 -v
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC-7
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc-7 -v
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version && _CC=clang-20 ZSTD_ASM=1 ZSTD_WARNINGS=1 ZSTD_WERRORS=1 _ZSTD_SMALL=1 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 ZSTD_EXTERNAL=1 CC=gcc-5 ${{matrix.os.pypkg}} setup.py bdist_wheel "
 
       - name: Test wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}

From c21755056886ace2c363afd3c9f4cf30b7f73de1 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Fri, 13 Feb 2026 14:13:03 +0300
Subject: [PATCH 11/31] Switch to Ubuntu14 for cpython2.7 builds

---
 .github/workflows/Build_wheels_for_cpython27_x86.yml   |  6 +++---
 .../workflows/Build_wheels_for_cpython27_x86_64.yml    | 10 +++++-----
 .../workflows/Build_wheels_for_cpython27_x86_ext.yml   | 10 +++++-----
 3 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86.yml b/.github/workflows/Build_wheels_for_cpython27_x86.yml
index 4395c5010..7c12de096 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython2.7 x86 on Ubuntu18 with GCC-7 with All warnings
+name: Build wheels for CPython2.7 x86 on Ubuntu14 with GCC-4.8 with All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+18 i386 CPython 2.7
+          - name: Ubuntu 24+14 i386 CPython 2.7
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: bionic
+            release: trusty
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "2.7"
diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
index 5afdfff5d..e54973574 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython2.7 x64 on Ubuntu18 with GCC-7 with All warnings
+name: Build wheels for CPython2.7 x64 on Ubuntu14 with GCC-4.8 with All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 amd64 CPython 2.7
+          - name: Ubuntu 24+14 amd64 CPython 2.7
             runs-on: ubuntu-latest
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: bionic
+            release: trusty
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "2.7"
@@ -102,8 +102,8 @@ jobs:
           sudo tar -xvf dist/zstd-$version.tar.gz -C ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/
           false && sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} env 
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} pkg-config libzstd --modversion
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC-7
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc-7 -v
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc -v
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version && CC=gcc-7 ZSTD_ASM=1 _ZSTD_SMALL=1 ZSTD_WARNINGS=1 _ZSTD_WERRORS=1 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 _ZSTD_EXTERNAL=1 ${{matrix.os.pypkg}} setup.py bdist_wheel"
 
       - name: Test wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml b/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
index df4628201..04e2c6602 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython2.7 x86 on Ubuntu18 with GCC-7 with All warnings, test external build
+name: Build wheels for CPython2.7 x86 on Ubuntu14 with GCC-4.8 with All warnings, test external build
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+18 i386 CPython 2.7
+          - name: Ubuntu 24+14 i386 CPython 2.7
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: bionic
+            release: trusty
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "2.7"
@@ -102,8 +102,8 @@ jobs:
           false && sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} env
           
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} pkg-config libzstd --modversion 
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC-7
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc-7 -v
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc -v
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version && _CC=clang-20 ZSTD_ASM=1 ZSTD_WARNINGS=1 ZSTD_WERRORS=1 _ZSTD_SMALL=1 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 ZSTD_EXTERNAL=1 CC=gcc-5 ${{matrix.os.pypkg}} setup.py bdist_wheel "
 
       - name: Test wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}

From c314a051435e49554371094311824a8f5bacfc78 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Fri, 13 Feb 2026 14:23:50 +0300
Subject: [PATCH 12/31] Exclude builds windows+cp36,cp38

---
 .github/workflows/build-wheels.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/build-wheels.yml b/.github/workflows/build-wheels.yml
index 8a0462926..c6b30a8c7 100644
--- a/.github/workflows/build-wheels.yml
+++ b/.github/workflows/build-wheels.yml
@@ -188,6 +188,8 @@ jobs:
               matrix: windows
             cibw:
               build: cp27-*
+              build: cp36-*
+              build: cp38-*
           - os:
               matrix: macos
             cibw:

From 39d5f088f6286026d1f1edd9015dc80b8b409507 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Mon, 9 Mar 2026 12:08:12 +0300
Subject: [PATCH 13/31] Build wheels for python3.15 on Ubuntu18

---
 ...4_u16.yml => Build_wheels_for_cpython315_x86_64_u18.yml} | 6 +++---
 ..._x86_u16.yml => Build_wheels_for_cpython315_x86_u18.yml} | 6 +++---
 ...x64_u16.yml => Build_wheels_for_cpython315t_x64_u18.yml} | 6 +++---
 ...x86_u16.yml => Build_wheels_for_cpython315t_x86_u18.yml} | 6 +++---
 4 files changed, 12 insertions(+), 12 deletions(-)
 rename .github/workflows/{Build_wheels_for_cpython315_x86_64_u16.yml => Build_wheels_for_cpython315_x86_64_u18.yml} (98%)
 rename .github/workflows/{Build_wheels_for_cpython315_x86_u16.yml => Build_wheels_for_cpython315_x86_u18.yml} (98%)
 rename .github/workflows/{Build_wheels_for_cpython315t_x64_u16.yml => Build_wheels_for_cpython315t_x64_u18.yml} (98%)
 rename .github/workflows/{Build_wheels_for_cpython315t_x86_u16.yml => Build_wheels_for_cpython315t_x86_u18.yml} (98%)

diff --git a/.github/workflows/Build_wheels_for_cpython315_x86_64_u16.yml b/.github/workflows/Build_wheels_for_cpython315_x86_64_u18.yml
similarity index 98%
rename from .github/workflows/Build_wheels_for_cpython315_x86_64_u16.yml
rename to .github/workflows/Build_wheels_for_cpython315_x86_64_u18.yml
index 975c02988..ed51eb085 100644
--- a/.github/workflows/Build_wheels_for_cpython315_x86_64_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython315_x86_64_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.15 x86_64 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.15 x86_64 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 amd64 CPython 3.15
+          - name: Ubuntu 24+18 amd64 CPython 3.15
             runs-on: ubuntu-latest
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             # pyver: "3.7"
diff --git a/.github/workflows/Build_wheels_for_cpython315_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython315_x86_u18.yml
similarity index 98%
rename from .github/workflows/Build_wheels_for_cpython315_x86_u16.yml
rename to .github/workflows/Build_wheels_for_cpython315_x86_u18.yml
index 714def95e..8aacbf40f 100644
--- a/.github/workflows/Build_wheels_for_cpython315_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython315_x86_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.15 x86 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.15 x86 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 i686 CPython 3.15
+          - name: Ubuntu 24+18 i686 CPython 3.15
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             # pyver: "3.7"
diff --git a/.github/workflows/Build_wheels_for_cpython315t_x64_u16.yml b/.github/workflows/Build_wheels_for_cpython315t_x64_u18.yml
similarity index 98%
rename from .github/workflows/Build_wheels_for_cpython315t_x64_u16.yml
rename to .github/workflows/Build_wheels_for_cpython315t_x64_u18.yml
index 931574582..8d1c640cb 100644
--- a/.github/workflows/Build_wheels_for_cpython315t_x64_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython315t_x64_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.15-nogil x64 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.15-nogil x64 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 amd64 CPython 3.15-nogil
+          - name: Ubuntu 24+18 amd64 CPython 3.15-nogil
             runs-on: ubuntu-latest
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: xenial
+            release: bioic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             # pyver: "3.7"
diff --git a/.github/workflows/Build_wheels_for_cpython315t_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython315t_x86_u18.yml
similarity index 98%
rename from .github/workflows/Build_wheels_for_cpython315t_x86_u16.yml
rename to .github/workflows/Build_wheels_for_cpython315t_x86_u18.yml
index b055275ca..ae9eb6f0f 100644
--- a/.github/workflows/Build_wheels_for_cpython315t_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython315t_x86_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.15-nogil x86 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.15-nogil x86 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 i386 CPython 3.15-nogil
+          - name: Ubuntu 24+18 i386 CPython 3.15-nogil
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             # pyver: "3.7"

From c9eacdd468e1fb855cf48423dece88ca9a7f5842 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Mon, 9 Mar 2026 13:20:50 +0300
Subject: [PATCH 14/31] Build wheels for python3.14 on Ubuntu18

---
 ...6_64_u24.yml => Build_wheels_for_cpython314_x64_u18.yml} | 6 +++---
 ..._x86_u16.yml => Build_wheels_for_cpython314_x86_u18.yml} | 6 +++---
 ...x64_u16.yml => Build_wheels_for_cpython314t_x64_u18.yml} | 6 +++---
 ...x86_u16.yml => Build_wheels_for_cpython314t_x86_u18.yml} | 6 +++---
 4 files changed, 12 insertions(+), 12 deletions(-)
 rename .github/workflows/{Build_wheels_for_cpython314_x86_64_u24.yml => Build_wheels_for_cpython314_x64_u18.yml} (98%)
 rename .github/workflows/{Build_wheels_for_cpython314_x86_u16.yml => Build_wheels_for_cpython314_x86_u18.yml} (98%)
 rename .github/workflows/{Build_wheels_for_cpython314t_x64_u16.yml => Build_wheels_for_cpython314t_x64_u18.yml} (98%)
 rename .github/workflows/{Build_wheels_for_cpython314t_x86_u16.yml => Build_wheels_for_cpython314t_x86_u18.yml} (98%)

diff --git a/.github/workflows/Build_wheels_for_cpython314_x86_64_u24.yml b/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
similarity index 98%
rename from .github/workflows/Build_wheels_for_cpython314_x86_64_u24.yml
rename to .github/workflows/Build_wheels_for_cpython314_x64_u18.yml
index 3a95409b2..f8fee500a 100644
--- a/.github/workflows/Build_wheels_for_cpython314_x86_64_u24.yml
+++ b/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.14 x86_64 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.14 amd64 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 amd64 CPython 3.14
+          - name: Ubuntu 24+18 amd64 CPython 3.14
             runs-on: ubuntu-latest
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             # pyver: "3.7"
diff --git a/.github/workflows/Build_wheels_for_cpython314_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml
similarity index 98%
rename from .github/workflows/Build_wheels_for_cpython314_x86_u16.yml
rename to .github/workflows/Build_wheels_for_cpython314_x86_u18.yml
index a9add75e7..3a79dba7d 100644
--- a/.github/workflows/Build_wheels_for_cpython314_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.14 x86 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.14 x86 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 x86 CPython 3.14
+          - name: Ubuntu 24+18 x86 CPython 3.14
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
             pypkg: python3.14
diff --git a/.github/workflows/Build_wheels_for_cpython314t_x64_u16.yml b/.github/workflows/Build_wheels_for_cpython314t_x64_u18.yml
similarity index 98%
rename from .github/workflows/Build_wheels_for_cpython314t_x64_u16.yml
rename to .github/workflows/Build_wheels_for_cpython314t_x64_u18.yml
index f13e835f9..5e72558fa 100644
--- a/.github/workflows/Build_wheels_for_cpython314t_x64_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython314t_x64_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.14-nogil x64 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.14-nogil x64 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 amd64 CPython 3.14-nogil
+          - name: Ubuntu 24+18 amd64 CPython 3.14-nogil
             runs-on: ubuntu-latest
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             # pyver: "3.7"
diff --git a/.github/workflows/Build_wheels_for_cpython314t_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython314t_x86_u18.yml
similarity index 98%
rename from .github/workflows/Build_wheels_for_cpython314t_x86_u16.yml
rename to .github/workflows/Build_wheels_for_cpython314t_x86_u18.yml
index cc2c53f12..646c4dae1 100644
--- a/.github/workflows/Build_wheels_for_cpython314t_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython314t_x86_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.14-nogil x86 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.14-nogil x86 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 i386 CPython 3.14-nogil
+          - name: Ubuntu 24+18 i386 CPython 3.14-nogil
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             # pyver: "3.7"

From 92641b4d67f49c47f5c0a5f79d53d6c44e5ee600 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Mon, 9 Mar 2026 19:49:08 +0300
Subject: [PATCH 15/31] Try to use aptitude

---
 .github/workflows/Build_wheels_for_cpython314_x64_u18.yml | 3 ++-
 .github/workflows/Build_wheels_for_cpython314_x86_u18.yml | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml b/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
index f8fee500a..e867760be 100644
--- a/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
+++ b/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
@@ -84,7 +84,8 @@ jobs:
       - name: Pepare dev files
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y libzstd-dev file
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y atitude
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/aptitude install -y libzstd-dev file
 
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
diff --git a/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml b/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml
index 3a79dba7d..f868d326a 100644
--- a/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml
+++ b/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml
@@ -81,7 +81,8 @@ jobs:
       - name: Pepare dev files
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y libzstd-dev file
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y aptitude
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/aptitude install -y libzstd-dev file
 
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'

From 5ef5d6e49638cae533a6d4c0d5eab1e97dcbade9 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Mon, 9 Mar 2026 20:44:22 +0300
Subject: [PATCH 16/31] Fix typo

---
 .github/workflows/Build_wheels_for_cpython314_x64_u18.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml b/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
index e867760be..0c83ad9be 100644
--- a/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
+++ b/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
@@ -84,7 +84,7 @@ jobs:
       - name: Pepare dev files
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y atitude
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y aptitude
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/aptitude install -y libzstd-dev file
 
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}

From 5961ded077cddaeaf37e73ded206ea0fdb54a2c2 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Mon, 9 Mar 2026 21:21:13 +0300
Subject: [PATCH 17/31] Use more aptitude

---
 .github/workflows/Build_wheels_for_cpython314_x64_u18.yml  | 2 +-
 .github/workflows/Build_wheels_for_cpython314_x86_u18.yml  | 2 +-
 .github/workflows/Build_wheels_for_cpython314t_x64_u18.yml | 5 +++--
 .github/workflows/Build_wheels_for_cpython314t_x86_u18.yml | 5 +++--
 4 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml b/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
index 0c83ad9be..04aa4648f 100644
--- a/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
+++ b/.github/workflows/Build_wheels_for_cpython314_x64_u18.yml
@@ -90,7 +90,7 @@ jobs:
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y ${{matrix.os.pypkg}}-dev gcc pkg-config ${{matrix.os.pypkgadd}}
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/aptitude install -y ${{matrix.os.pypkg}}-dev gcc pkg-config ${{matrix.os.pypkgadd}}
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "wget ${{matrix.os.getpipurl}} -O get-pip.py && ${{matrix.os.pypkg}} get-pip.py || true"
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkg}} -m pip install -U 'setuptools<72.0'" 
                     
diff --git a/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml b/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml
index f868d326a..623f018f2 100644
--- a/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml
+++ b/.github/workflows/Build_wheels_for_cpython314_x86_u18.yml
@@ -87,7 +87,7 @@ jobs:
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y ${{matrix.os.pypkg}}-dev gcc pkg-config ${{matrix.os.pypkgadd}}
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/aptitude install -y ${{matrix.os.pypkg}}-dev gcc pkg-config ${{matrix.os.pypkgadd}}
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "wget ${{matrix.os.getpipurl}} -O get-pip.py && ${{matrix.os.pypkg}} get-pip.py || true"
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkg}} -m pip install -U 'setuptools<72.0'" 
                     
diff --git a/.github/workflows/Build_wheels_for_cpython314t_x64_u18.yml b/.github/workflows/Build_wheels_for_cpython314t_x64_u18.yml
index 5e72558fa..ea2d793ce 100644
--- a/.github/workflows/Build_wheels_for_cpython314t_x64_u18.yml
+++ b/.github/workflows/Build_wheels_for_cpython314t_x64_u18.yml
@@ -86,12 +86,13 @@ jobs:
       - name: Pepare dev files
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y libzstd-dev file
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y aptitude
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/aptitude install -y libzstd-dev file
 
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y ${{matrix.os.pypkgdev}} ${{matrix.os.pypkg}} gcc pkg-config ${{matrix.os.pypkgadd}}
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/aptitude install -y ${{matrix.os.pypkgdev}} ${{matrix.os.pypkg}} gcc pkg-config ${{matrix.os.pypkgadd}}
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "wget ${{matrix.os.getpipurl}} -O get-pip.py && ${{matrix.os.pypkgexe}} get-pip.py || true"
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkgexe}} -m pip install -U 'setuptools<72.0'"
 
diff --git a/.github/workflows/Build_wheels_for_cpython314t_x86_u18.yml b/.github/workflows/Build_wheels_for_cpython314t_x86_u18.yml
index 646c4dae1..16b6deee7 100644
--- a/.github/workflows/Build_wheels_for_cpython314t_x86_u18.yml
+++ b/.github/workflows/Build_wheels_for_cpython314t_x86_u18.yml
@@ -86,12 +86,13 @@ jobs:
       - name: Pepare dev files
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y libzstd-dev file
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y aptitude
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/aptitude install -y libzstd-dev file
 
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y ${{matrix.os.pypkgdev}} ${{matrix.os.pypkg}} gcc pkg-config ${{matrix.os.pypkgadd}}
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/aptitude install -y ${{matrix.os.pypkgdev}} ${{matrix.os.pypkg}} gcc pkg-config ${{matrix.os.pypkgadd}}
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "wget ${{matrix.os.getpipurl}} -O get-pip.py && ${{matrix.os.pypkgexe}} get-pip.py || true"
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkgexe}} -m pip install -U 'setuptools<72.0'"
 

From 08139a30a07ef5e668553362ea60dedbe33dcde5 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Wed, 22 Apr 2026 13:42:00 +0300
Subject: [PATCH 18/31] Build wheel for python3.13 on ubuntu18 and try to
 publish release wheel on github too

---
 ...> Build_wheels_for_cpython313_x64_u18.yml} | 27 ++++++++++++-------
 ...> Build_wheels_for_cpython313_x86_u18.yml} | 18 ++++++++++---
 ... Build_wheels_for_cpython313t_x64_u18.yml} | 17 +++++++++---
 ... Build_wheels_for_cpython313t_x86_u18.yml} | 21 ++++++++++-----
 4 files changed, 61 insertions(+), 22 deletions(-)
 rename .github/workflows/{Build_wheels_for_cpython313_x86_64_u24.yml => Build_wheels_for_cpython313_x64_u18.yml} (88%)
 rename .github/workflows/{Build_wheels_for_cpython313_x86_u16.yml => Build_wheels_for_cpython313_x86_u18.yml} (93%)
 rename .github/workflows/{Build_wheels_for_cpython313t_x64_u16.yml => Build_wheels_for_cpython313t_x64_u18.yml} (93%)
 rename .github/workflows/{Build_wheels_for_cpython313t_x86_u16.yml => Build_wheels_for_cpython313t_x86_u18.yml} (91%)

diff --git a/.github/workflows/Build_wheels_for_cpython313_x86_64_u24.yml b/.github/workflows/Build_wheels_for_cpython313_x64_u18.yml
similarity index 88%
rename from .github/workflows/Build_wheels_for_cpython313_x86_64_u24.yml
rename to .github/workflows/Build_wheels_for_cpython313_x64_u18.yml
index 080ce2952..f86acfaa5 100644
--- a/.github/workflows/Build_wheels_for_cpython313_x86_64_u24.yml
+++ b/.github/workflows/Build_wheels_for_cpython313_x64_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.13 x86_64 on Ubuntu22 with GCC-10 All warnings
+name: Build wheels for CPython3.13 x86_64 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+20 amd64 CPython 3.13
+          - name: Ubuntu 24+18 amd64 CPython 3.13
             runs-on: ubuntu-latest
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: jammy
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
             pypkg: python3.13
@@ -61,14 +61,12 @@ jobs:
           sudo mount none ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/proc -t proc
           sudo mount none ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/dev/pts -t devpts
           sudo mount none ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/sys -t sysfs
-          echo "# deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/python ubuntu-${{matrix.os.release}} main" > rusoft-python.list
-          echo "# deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/backports ubuntu-${{matrix.os.release}} main" > rusoft-backports.list
-          echo "# deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/packages ubuntu-${{matrix.os.release}} main" > rusoft-packages.list
-          echo " deb [trusted=yes] http://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu ${{matrix.os.release}} main" > deadsnakes.list
-          false && sudo find ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} -iname apt
+          echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/python ubuntu-${{matrix.os.release}} main" > rusoft-python.list
+          echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/backports ubuntu-${{matrix.os.release}} main" > rusoft-backports.list
+          echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/packages ubuntu-${{matrix.os.release}} main" > rusoft-packages.list
+          echo "# deb [trusted=yes] http://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu ${{matrix.os.release}} main" > deadsnakes.list
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt update
           sudo cp -v ./*.list ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/etc/apt/sources.list.d
-          false && sudo rm -fv ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/etc/apt/trusted.gpg.d/* && sudo rm -fv ./ubuntu-xenial-x86/etc/apt/trusted.gpg
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'cd /etc/apt/trusted.gpg.d && wget http://packages.rusoft.ru/apt/public.gpg -Orusoft.gpg'
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'cd /etc/apt/trusted.gpg.d && wget http://packages.rusoft.ru/apt/public-old.gpg -Orusoft-old.gpg'
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys A2CE4BCCC50209DD || true'
@@ -167,3 +165,14 @@ jobs:
           TWINE_PASSWORD: "${{ secrets.test_pypi_password }}"
         run: twine upload --non-interactive --skip-existing --verbose 'dist/*'
         
+      - name: Create Release and Upload Assets
+        if: >
+         startsWith(github.event.ref, 'refs/tags') &&
+         steps.check_secrets.outputs.HAS_SECRET
+        # This uses a community action for creating and uploading to a release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: dist/*.whl
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # The default GITHUB_TOKEN has sufficient permissions
\ No newline at end of file
diff --git a/.github/workflows/Build_wheels_for_cpython313_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython313_x86_u18.yml
similarity index 93%
rename from .github/workflows/Build_wheels_for_cpython313_x86_u16.yml
rename to .github/workflows/Build_wheels_for_cpython313_x86_u18.yml
index d22602c8a..eb5da41f4 100644
--- a/.github/workflows/Build_wheels_for_cpython313_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython313_x86_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.13 x86 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.13 x86 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 x86 CPython 3.13
+          - name: Ubuntu 24+18 x86 CPython 3.13
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
             pypkg: python3.13
@@ -66,7 +66,6 @@ jobs:
           echo "# deb [trusted=yes] http://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu ${{matrix.os.release}} main" > deadsnakes.list
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt update
           sudo cp -v ./*.list ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/etc/apt/sources.list.d
-          false && sudo rm -fv ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/etc/apt/trusted.gpg.d/* && sudo rm -fv ./ubuntu-xenial-x86/etc/apt/trusted.gpg
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'cd /etc/apt/trusted.gpg.d && wget http://packages.rusoft.ru/apt/public.gpg -Orusoft.gpg'
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'cd /etc/apt/trusted.gpg.d && wget http://packages.rusoft.ru/apt/public-old.gpg -Orusoft-old.gpg'
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys A2CE4BCCC50209DD || true'
@@ -165,3 +164,14 @@ jobs:
           TWINE_PASSWORD: "${{ secrets.test_pypi_password }}"
         run: twine upload --non-interactive --skip-existing --verbose 'dist/*'
         
+      - name: Create Release and Upload Assets
+        if: >
+         startsWith(github.event.ref, 'refs/tags') &&
+         steps.check_secrets.outputs.HAS_SECRET
+        # This uses a community action for creating and uploading to a release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: dist/*.whl
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # The default GITHUB_TOKEN has sufficient permissions
\ No newline at end of file
diff --git a/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml b/.github/workflows/Build_wheels_for_cpython313t_x64_u18.yml
similarity index 93%
rename from .github/workflows/Build_wheels_for_cpython313t_x64_u16.yml
rename to .github/workflows/Build_wheels_for_cpython313t_x64_u18.yml
index 3444cbf99..8837a9839 100644
--- a/.github/workflows/Build_wheels_for_cpython313t_x64_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython313t_x64_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.13-nogil x64 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.13-nogil x64 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 amd64 CPython 3.13-nogil
+          - name: Ubuntu 24+18 amd64 CPython 3.13-nogil
             runs-on: ubuntu-latest
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
             pypkg: python3.13-nogil
@@ -166,3 +166,14 @@ jobs:
           TWINE_PASSWORD: "${{ secrets.test_pypi_password }}"
         run: twine upload --non-interactive --skip-existing --verbose 'dist/*'
         
+      - name: Create Release and Upload Assets
+        if: >
+         startsWith(github.event.ref, 'refs/tags') &&
+         steps.check_secrets.outputs.HAS_SECRET
+        # This uses a community action for creating and uploading to a release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: dist/*.whl
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # The default GITHUB_TOKEN has sufficient permissions
\ No newline at end of file
diff --git a/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml b/.github/workflows/Build_wheels_for_cpython313t_x86_u18.yml
similarity index 91%
rename from .github/workflows/Build_wheels_for_cpython313t_x86_u16.yml
rename to .github/workflows/Build_wheels_for_cpython313t_x86_u18.yml
index 0719d94c4..94080a4d2 100644
--- a/.github/workflows/Build_wheels_for_cpython313t_x86_u16.yml
+++ b/.github/workflows/Build_wheels_for_cpython313t_x86_u18.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.13-nogil x86 on Ubuntu16 with GCC-5 All warnings
+name: Build wheels for CPython3.13-nogil x86 on Ubuntu18 with GCC-7 All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 i386 CPython 3.13-nogil
+          - name: Ubuntu 24+18 i386 CPython 3.13-nogil
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: xenial
+            release: bionic
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             # pyver: "3.7"
@@ -70,10 +70,8 @@ jobs:
           echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/backports ubuntu-${{matrix.os.release}} main" > rusoft-backports.list
           echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/packages ubuntu-${{matrix.os.release}} main" > rusoft-packages.list
           echo "# deb [trusted=yes] http://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu ${{matrix.os.release}} main" > deadsnakes.list
-          false && sudo find ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} -iname apt
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt update
           sudo cp -v ./*.list ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/etc/apt/sources.list.d
-          false && sudo rm -fv ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/etc/apt/trusted.gpg.d/* && sudo rm -fv ./ubuntu-xenial-x86/etc/apt/trusted.gpg
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'cd /etc/apt/trusted.gpg.d && wget http://packages.rusoft.ru/apt/public.gpg -Orusoft.gpg'
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'cd /etc/apt/trusted.gpg.d && wget http://packages.rusoft.ru/apt/public-old.gpg -Orusoft-old.gpg'
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c 'apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys A2CE4BCCC50209DD || true'
@@ -105,7 +103,7 @@ jobs:
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} pkg-config libzstd --modversion 
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc -v
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version/ && ZSTD_ASM=1 ZSTD_WARNINGS=1 _ZSTD_SMALL=1 LDFLAGS='-Wl,--as-needed -Wl,-s' ZSTD_BUILD_STRIP=1 _ZSTD_SPEED=0 _ZSTD_SPEEDMAX=0 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 _ZSTD_EXTERNAL=0 ${{matrix.os.pypkgexe}} setup.py bdist_wheel"
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version/ && ZSTD_ASM=1 ZSTD_WARNINGS=1 _ZSTD_SMALL=1 ZSTD_BUILD_STRIP=1 _ZSTD_SPEED=0 _ZSTD_SPEEDMAX=0 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 _ZSTD_EXTERNAL=0 ${{matrix.os.pypkgexe}} setup.py bdist_wheel"
 
       - name: Test wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
@@ -172,3 +170,14 @@ jobs:
           TWINE_PASSWORD: "${{ secrets.test_pypi_password }}"
         run: twine upload --non-interactive --skip-existing --verbose 'dist/*'
         
+      - name: Create Release and Upload Assets
+        if: >
+         startsWith(github.event.ref, 'refs/tags') &&
+         steps.check_secrets.outputs.HAS_SECRET
+        # This uses a community action for creating and uploading to a release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: dist/*64*.tar.xz
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # The default GITHUB_TOKEN has sufficient permissions
\ No newline at end of file

From b0f1e5a38c6a3693195f508c32decec9b23db730 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Thu, 14 May 2026 14:10:57 +0300
Subject: [PATCH 19/31] Fix typo

---
 .github/workflows/Build_wheels_for_cpython313t_x64_u18.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/Build_wheels_for_cpython313t_x64_u18.yml b/.github/workflows/Build_wheels_for_cpython313t_x64_u18.yml
index 8837a9839..370d9e06c 100644
--- a/.github/workflows/Build_wheels_for_cpython313t_x64_u18.yml
+++ b/.github/workflows/Build_wheels_for_cpython313t_x64_u18.yml
@@ -99,7 +99,7 @@ jobs:
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} pkg-config libzstd --modversion 
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc -v
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version/ && ZSTD_ASM=1 ZSTD_WARNINGS=1 _ZSTD_SMALL=1 LDFLAGS='-Wl,--as-needed -Wl,-s' ZSTD_BUILD_STRIP=1 _ZSTD_SPEED=0 _ZSTD_SPEEDMAX=0 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 _ZSTD_EXTERNAL=0 ZS5D_WERRORS=1 ${{matrix.os.pypkgexe}} setup.py bdist_wheel"
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version/ && ZSTD_ASM=1 ZSTD_WARNINGS=1 _ZSTD_SMALL=1 LDFLAGS='-Wl,--as-needed -Wl,-s' ZSTD_BUILD_STRIP=1 _ZSTD_SPEED=0 _ZSTD_SPEEDMAX=0 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 _ZSTD_EXTERNAL=0 ZSTD_WERRORS=1 ${{matrix.os.pypkgexe}} setup.py bdist_wheel"
 
       - name: Test wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'

From 3fbe7926d00c7a0196492adc51dfcd0adfe51afd Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Wed, 20 May 2026 15:35:07 +0300
Subject: [PATCH 20/31] fix typo: wrong gcc version, enable werror

---
 .github/workflows/Build_wheels_for_cpython27_x86_64.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
index e54973574..795a9c906 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
@@ -93,7 +93,7 @@ jobs:
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y ${{matrix.os.pypkg}}-dev gcc pkg-config ${{matrix.os.pypkgadd}}
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "wget ${{matrix.os.getpipurl}} -O get-pip.py && ${{matrix.os.pypkg}} get-pip.py || true"
            sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "${{matrix.os.pypkg}} -m pip install -U 'setuptools<72'" 
-                    
+
       - name: Pepare source and build wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
         run: |
@@ -104,7 +104,7 @@ jobs:
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} pkg-config libzstd --modversion
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc -v
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version && CC=gcc-7 ZSTD_ASM=1 _ZSTD_SMALL=1 ZSTD_WARNINGS=1 _ZSTD_WERRORS=1 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 _ZSTD_EXTERNAL=1 ${{matrix.os.pypkg}} setup.py bdist_wheel"
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version && CC=gcc-4.8 ZSTD_ASM=1 _ZSTD_SMALL=1 ZSTD_WARNINGS=1 ZSTD_WERRORS=1 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 _ZSTD_EXTERNAL=1 ${{matrix.os.pypkg}} setup.py bdist_wheel"
 
       - name: Test wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'

From 5b64cf7c7b424baa3cf27bc86e65167057aa3be0 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Tue, 2 Jun 2026 17:28:11 +0300
Subject: [PATCH 21/31] Fix cores cache

---
 src/util.c | 32 ++++++++++++++++++++++++++------
 src/util.h |  4 ++--
 2 files changed, 28 insertions(+), 8 deletions(-)

diff --git a/src/util.c b/src/util.c
index 2e2de2d7c..e0a62b7dd 100644
--- a/src/util.c
+++ b/src/util.c
@@ -40,7 +40,11 @@ typedef BOOL(WINAPI* LPFN_GLPI)(PSYSTEM_LOGICAL_PROCESSOR_INFORMATION, PDWORD);
 int UTIL_countAvailableCores(void)
 {
     time_t currTime = time(NULL);
-    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) numLogicalCores = 0;
+    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) {
+        printdn("Cache reach TTL. Drop numLogicalCores.", numLogicalCores);
+        numLogicalCores = 0;
+    }
+
     if (numLogicalCores != 0) return numLogicalCores;
 
     {   LPFN_GLPI glpi;
@@ -120,7 +124,11 @@ int UTIL_countAvailableCores(void)
 int UTIL_countAvailableCores(void)
 {
     time_t currTime = time(NULL);
-    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) numLogicalCores = 0;
+    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) {
+        printdn("Cache reach TTL. Drop numLogicalCores.", numLogicalCores);
+        numLogicalCores = 0;
+    }
+
     if (numLogicalCores != 0) return numLogicalCores;
 
     {   size_t size = sizeof(int32_t);
@@ -147,7 +155,10 @@ int UTIL_countAvailableCores(void)
 int UTIL_countAvailableCores_posix_sysconf(void)
 {
     time_t currTime = time(NULL);
-    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) numLogicalCores = 0;
+    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) {
+        printdn("Cache reach TTL. Drop numLogicalCores.", numLogicalCores);
+        numLogicalCores = 0;
+    }
 
     if (numLogicalCores != 0) {
         printdn("Stored static numLogicalCores: %d\n", numLogicalCores);
@@ -177,7 +188,10 @@ int UTIL_countAvailableCores(void) {
 int UTIL_countAvailableCores_parse_cpuinfo(void)
 {
     time_t currTime = time(NULL);
-    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) numLogicalCores = 0;
+    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) {
+        printdn("Cache reach TTL. Drop numLogicalCores.", numLogicalCores);
+        numLogicalCores = 0;
+    }
 
     if (numLogicalCores != 0) {
         printdn("Stored static numLogicalCores: %d\n", numLogicalCores);
@@ -269,7 +283,10 @@ int UTIL_countAvailableCores_parse_cpuinfo(void)
 int UTIL_countAvailableCores(void)
 {
     time_t currTime = time(NULL);
-    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) numLogicalCores = 0;
+    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) {
+        printdn("Cache reach TTL. Drop numLogicalCores.", numLogicalCores);
+        numLogicalCores = 0;
+    }
 
     if (numLogicalCores != 0) return numLogicalCores;
 
@@ -302,7 +319,10 @@ int UTIL_countAvailableCores(void)
 int UTIL_countAvailableCores(void)
 {
     time_t currTime = time(NULL);
-    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) numLogicalCores = 0;
+    if (lastTimeCached && currTime-lastTimeCached>util_cpuCoresCacheTTL) {
+        printdn("Cache reach TTL. Drop numLogicalCores.", numLogicalCores);
+        numLogicalCores = 0;
+    }
 
     if (numLogicalCores != 0) return numLogicalCores;
 
diff --git a/src/util.h b/src/util.h
index fbb635e28..8f5e773ca 100644
--- a/src/util.h
+++ b/src/util.h
@@ -67,11 +67,11 @@ extern "C" {
 #endif
 
 #if defined(_WIN32) || defined(WIN32)
- static int numLogicalCores = 1;
+ static int numLogicalCores = 0;
  static time_t lastTimeCached = 0;
  static int util_cpuCoresCacheTTL = 60;
 #else
-__attribute__((unused)) static int numLogicalCores = 1;
+__attribute__((unused)) static int numLogicalCores = 0;
 __attribute__((unused)) static time_t lastTimeCached = 0;
 __attribute__((unused)) static int util_cpuCoresCacheTTL = 60;
 #endif

From 370c7fffb5c39bfc0b976e977990752a106ed3cc Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Tue, 2 Jun 2026 17:34:06 +0300
Subject: [PATCH 22/31] Back to Ubuntu16 for cypthon2.7 x86

---
 .github/workflows/Build_wheels_for_cpython27_x86.yml   |  6 +++---
 .../workflows/Build_wheels_for_cpython27_x86_64.yml    | 10 +++++-----
 .../workflows/Build_wheels_for_cpython27_x86_ext.yml   |  6 +++---
 ....yml => Build_wheels_for_cpython310_x86_64_u16.yml} |  0
 4 files changed, 11 insertions(+), 11 deletions(-)
 rename .github/workflows/{Build_wheels_for_cpython310_x86_64_u24.yml => Build_wheels_for_cpython310_x86_64_u16.yml} (100%)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86.yml b/.github/workflows/Build_wheels_for_cpython27_x86.yml
index 7c12de096..5f11a3ef1 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython2.7 x86 on Ubuntu14 with GCC-4.8 with All warnings
+name: Build wheels for CPython2.7 x86 on Ubuntu16 with GCC-5 with All warnings
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+14 i386 CPython 2.7
+          - name: Ubuntu 24+16 i386 CPython 2.7
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: trusty
+            release: xenial
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "2.7"
diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
index 795a9c906..81398505d 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython2.7 x64 on Ubuntu14 with GCC-4.8 with All warnings
+name: Build wheels for CPython2.7 x64 on Ubuntu16 with GCC-5 with All warnings
 
 on: [push, pull_request]
 
@@ -19,7 +19,7 @@ jobs:
             matrix: linux
             arch: amd64
             tag_arch: x86_64
-            release: trusty
+            release: xenial
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "2.7"
@@ -102,9 +102,9 @@ jobs:
           sudo tar -xvf dist/zstd-$version.tar.gz -C ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/
           false && sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} env 
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} pkg-config libzstd --modversion
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc -v
-          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version && CC=gcc-4.8 ZSTD_ASM=1 _ZSTD_SMALL=1 ZSTD_WARNINGS=1 ZSTD_WERRORS=1 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 _ZSTD_EXTERNAL=1 ${{matrix.os.pypkg}} setup.py bdist_wheel"
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} echo GCC-5
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} gcc-5 -v
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version && CC=gcc-5 ZSTD_ASM=1 _ZSTD_SMALL=1 ZSTD_WARNINGS=1 ZSTD_WERRORS=1 _ZSTD_ASM_BMI2=1 ZSTD_THREADS=1 _ZSTD_EXTERNAL=1 ${{matrix.os.pypkg}} setup.py bdist_wheel"
 
       - name: Test wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml b/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
index 04e2c6602..b39f7c717 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_ext.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython2.7 x86 on Ubuntu14 with GCC-4.8 with All warnings, test external build
+name: Build wheels for CPython2.7 x86 on Ubuntu16 with GCC-5 with All warnings, test external build
 
 on: [push, pull_request]
 
@@ -14,12 +14,12 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+14 i386 CPython 2.7
+          - name: Ubuntu 24+16 i386 CPython 2.7
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
             tag_arch: i686
-            release: trusty
+            release: xenial
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "2.7"
diff --git a/.github/workflows/Build_wheels_for_cpython310_x86_64_u24.yml b/.github/workflows/Build_wheels_for_cpython310_x86_64_u16.yml
similarity index 100%
rename from .github/workflows/Build_wheels_for_cpython310_x86_64_u24.yml
rename to .github/workflows/Build_wheels_for_cpython310_x86_64_u16.yml

From cb9ef4f87d62d2bdeba357dd8b6cf4445cd0ae31 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Thu, 4 Jun 2026 21:38:31 +0300
Subject: [PATCH 23/31] Add script for checking SIMD instructions for #320

---
 simd-check | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100755 simd-check

diff --git a/simd-check b/simd-check
new file mode 100755
index 000000000..a46fe89a1
--- /dev/null
+++ b/simd-check
@@ -0,0 +1,73 @@
+#!/bin/bash
+
+tmpf=`tempfile`
+echo tmpf=$tmpf
+
+echo "File:$1"
+echo " dump ASM instructions..."
+objdump -d $1>$tmpf
+
+echo -en "count SSE lines:"
+# Source - https://stackoverflow.com/a/50056059
+# Posted by Andriy Makukha, modified by community. See post 'Timeline' for change history
+# Retrieved 2026-03-31, License - CC BY-SA 4.0
+
+awk '/[ \t](addps|andnps|andps|cmpps|cvtpi2ps|cvtps2pi|cvttps2pi|divps|maxps|minps|movaps|movhlps|movhps|movlhps|movlps|movmskps|movntps|movntq|movups|mulps|orps|pavgb|pavgw|pextrw|pinsrw|pmaxsw|pmaxub|pminsw|pminub|pmovmskb|pmulhuw|psadbw|pshufw|rcpps|rsqrtps|shufps|sqrtps|subps|unpckhps|unpcklps|xorps)[ \t]/' $tmpf | wc -l
+
+echo -en "count SSE2 lines:"
+
+# Source - https://stackoverflow.com/a/50056059
+# Posted by Andriy Makukha, modified by community. See post 'Timeline' for change history
+# Retrieved 2026-03-31, License - CC BY-SA 4.0
+
+awk '/[ \t](addpd|addsd|andnpd|andpd|cmppd|comisd|cvtdq2pd|cvtdq2ps|cvtpd2dq|cvtpd2pi|cvtpd2ps|cvtpi2pd|cvtps2dq|cvtps2pd|cvtsd2si|cvtsd2ss|cvtsi2sd|cvtss2sd|cvttpd2dq|cvttpd2pi|cvtps2dq|cvttsd2si|divpd|divsd|maxpd|maxsd|minpd|minsd|movapd|movhpd|movlpd|movmskpd|movupd|mulpd|mulsd|orpd|shufpd|sqrtpd|sqrtsd|subpd|subsd|ucomisd|unpckhpd|unpcklpd|xorpd|movdq2q|movdqa|movdqu|movq2dq|paddq|pmuludq|pshufhw|pshuflw|pshufd|pslldq|psrldq|punpckhqdq|punpcklqdq)[ \t]/' $tmpf | wc -l
+
+echo -en "count SSE3 lines:"
+
+# Source - https://stackoverflow.com/a/50056059
+# Posted by Andriy Makukha, modified by community. See post 'Timeline' for change history
+# Retrieved 2026-03-31, License - CC BY-SA 4.0
+
+awk '/[ \t](addsubpd|addsubps|haddpd|haddps|hsubpd|hsubps|movddup|movshdup|movsldup|lddqu|fisttp)[ \t]/' $tmpf | wc -l
+
+echo -en "count SSSE3 lines:"
+
+# Source - https://stackoverflow.com/a/50056059
+# Posted by Andriy Makukha, modified by community. See post 'Timeline' for change history
+# Retrieved 2026-03-31, License - CC BY-SA 4.0
+
+awk '/[ \t](psignw|psignd|psignb|pshufb|pmulhrsw|pmaddubsw|phsubw|phsubsw|phsubd|phaddw|phaddsw|phaddd|palignr|pabsw|pabsd|pabsb)[ \t]/' $tmpf | wc -l
+
+echo -en "count SSE4 lines:"
+
+# Source - https://stackoverflow.com/a/50056059
+# Posted by Andriy Makukha, modified by community. See post 'Timeline' for change history
+# Retrieved 2026-03-31, License - CC BY-SA 4.0
+
+awk '/[ \t](mpsadbw|phminposuw|pmulld|pmuldq|dpps|dppd|blendps|blendpd|blendvps|blendvpd|pblendvb|pblenddw|pminsb|pmaxsb|pminuw|pmaxuw|pminud|pmaxud|pminsd|pmaxsd|roundps|roundss|roundpd|roundsd|insertps|pinsrb|pinsrd|pinsrq|extractps|pextrb|pextrd|pextrw|pextrq|pmovsxbw|pmovzxbw|pmovsxbd|pmovzxbd|pmovsxbq|pmovzxbq|pmovsxwd|pmovzxwd|pmovsxwq|pmovzxwq|pmovsxdq|pmovzxdq|ptest|pcmpeqq|pcmpgtq|packusdw|pcmpestri|pcmpestrm|pcmpistri|pcmpistrm|crc32|popcnt|movntdqa|extrq|insertq|movntsd|movntss|lzcnt)[ \t]/' $tmpf | wc -l
+
+echo -en "count AVX lines:"
+
+# Source - https://stackoverflow.com/a/50056059
+# Posted by Andriy Makukha, modified by community. See post 'Timeline' for change history
+# Retrieved 2026-03-31, License - CC BY-SA 4.0
+
+awk '/[ \t](vmovapd|vmulpd|vaddpd|vsubpd|vfmadd213pd|vfmadd231pd|vfmadd132pd|vmulsd|vaddsd|vmosd|vsubsd|vbroadcastss|vbroadcastsd|vblendpd|vshufpd|vroundpd|vroundsd|vxorpd|vfnmadd231pd|vfnmadd213pd|vfnmadd132pd|vandpd|vmaxpd|vmovmskpd|vcmppd|vpaddd|vbroadcastf128|vinsertf128|vextractf128|vfmsub231pd|vfmsub132pd|vfmsub213pd|vmaskmovps|vmaskmovpd|vpermilps|vpermilpd|vperm2f128|vzeroall|vzeroupper|vpbroadcastb|vpbroadcastw|vpbroadcastd|vpbroadcastq|vbroadcasti128|vinserti128|vextracti128|vpminud|vpmuludq|vgatherdpd|vgatherqpd|vgatherdps|vgatherqps|vpgatherdd|vpgatherdq|vpgatherqd|vpgatherqq|vpmaskmovd|vpmaskmovq|vpermps|vpermd|vpermpd|vpermq|vperm2i128|vpblendd|vpsllvd|vpsllvq|vpsrlvd|vpsrlvq|vpsravd|vblendmpd|vblendmps|vpblendmd|vpblendmq|vpblendmb|vpblendmw|vpcmpd|vpcmpud|vpcmpq|vpcmpuq|vpcmpb|vpcmpub|vpcmpw|vpcmpuw|vptestmd|vptestmq|vptestnmd|vptestnmq|vptestmb|vptestmw|vptestnmb|vptestnmw|vcompresspd|vcompressps|vpcompressd|vpcompressq|vexpandpd|vexpandps|vpexpandd|vpexpandq|vpermb|vpermw|vpermt2b|vpermt2w|vpermi2pd|vpermi2ps|vpermi2d|vpermi2q|vpermi2b|vpermi2w|vpermt2ps|vpermt2pd|vpermt2d|vpermt2q|vshuff32x4|vshuff64x2|vshuffi32x4|vshuffi64x2|vpmultishiftqb|vpternlogd|vpternlogq|vpmovqd|vpmovsqd|vpmovusqd|vpmovqw|vpmovsqw|vpmovusqw|vpmovqb|vpmovsqb|vpmovusqb|vpmovdw|vpmovsdw|vpmovusdw|vpmovdb|vpmovsdb|vpmovusdb|vpmovwb|vpmovswb|vpmovuswb|vcvtps2udq|vcvtpd2udq|vcvttps2udq|vcvttpd2udq|vcvtss2usi|vcvtsd2usi|vcvttss2usi|vcvttsd2usi|vcvtps2qq|vcvtpd2qq|vcvtps2uqq|vcvtpd2uqq|vcvttps2qq|vcvttpd2qq|vcvttps2uqq|vcvttpd2uqq|vcvtudq2ps|vcvtudq2pd|vcvtusi2ps|vcvtusi2pd|vcvtusi2sd|vcvtusi2ss|vcvtuqq2ps|vcvtuqq2pd|vcvtqq2pd|vcvtqq2ps|vgetexppd|vgetexpps|vgetexpsd|vgetexpss|vgetmantpd|vgetmantps|vgetmantsd|vgetmantss|vfixupimmpd|vfixupimmps|vfixupimmsd|vfixupimmss|vrcp14pd|vrcp14ps|vrcp14sd|vrcp14ss|vrndscaleps|vrndscalepd|vrndscaless|vrndscalesd|vrsqrt14pd|vrsqrt14ps|vrsqrt14sd|vrsqrt14ss|vscalefps|vscalefpd|vscalefss|vscalefsd|valignd|valignq|vdbpsadbw|vpabsq|vpmaxsq|vpmaxuq|vpminsq|vpminuq|vprold|vprolvd|vprolq|vprolvq|vprord|vprorvd|vprorq|vprorvq|vpscatterdd|vpscatterdq|vpscatterqd|vpscatterqq|vscatterdps|vscatterdpd|vscatterqps|vscatterqpd|vpconflictd|vpconflictq|vplzcntd|vplzcntq|vpbroadcastmb2q|vpbroadcastmw2d|vexp2pd|vexp2ps|vrcp28pd|vrcp28ps|vrcp28sd|vrcp28ss|vrsqrt28pd|vrsqrt28ps|vrsqrt28sd|vrsqrt28ss|vgatherpf0dps|vgatherpf0qps|vgatherpf0dpd|vgatherpf0qpd|vgatherpf1dps|vgatherpf1qps|vgatherpf1dpd|vgatherpf1qpd|vscatterpf0dps|vscatterpf0qps|vscatterpf0dpd|vscatterpf0qpd|vscatterpf1dps|vscatterpf1qps|vscatterpf1dpd|vscatterpf1qpd|vfpclassps|vfpclasspd|vfpclassss|vfpclasssd|vrangeps|vrangepd|vrangess|vrangesd|vreduceps|vreducepd|vreducess|vreducesd|vpmovm2d|vpmovm2q|vpmovm2b|vpmovm2w|vpmovd2m|vpmovq2m|vpmovb2m|vpmovw2m|vpmullq|vpmadd52luq|vpmadd52huq|v4fmaddps|v4fmaddss|v4fnmaddps|v4fnmaddss|vp4dpwssd|vp4dpwssds|vpdpbusd|vpdpbusds|vpdpwssd|vpdpwssds|vpcompressb|vpcompressw|vpexpandb|vpexpandw|vpshld|vpshldv|vpshrd|vpshrdv|vpopcntd|vpopcntq|vpopcntb|vpopcntw|vpshufbitqmb|gf2p8affineinvqb|gf2p8affineqb|gf2p8mulb|vpclmulqdq|vaesdec|vaesdeclast|vaesenc|vaesenclast)[ \t]/' $tmpf | wc -l
+
+echo -en "count AVX2 lines:"
+
+grep -c ymm $tmpf
+
+echo -en "count AVX512 lines:"
+
+grep -c zmm $tmpf
+
+echo -en "count BMI lines:"
+
+grep -cE "tzcnt|lzcnt|andn|bextr" $tmpf
+
+echo -en "count BMI2 lines:"
+
+grep -cE "bzhi|pdep|pext|sarx|shlx|shrx" $tmpf
+
+rm -f $tmpf
\ No newline at end of file

From 844397c416b0f6592b04fa95659e5d8bd49614eb Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Thu, 4 Jun 2026 21:46:46 +0300
Subject: [PATCH 24/31] Test simd check for build cython2.7 i686

---
 .github/workflows/Build_wheels_for_cpython27_x86.yml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86.yml b/.github/workflows/Build_wheels_for_cpython27_x86.yml
index 5f11a3ef1..fd033ccf0 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86.yml
@@ -111,13 +111,20 @@ jobs:
       - name: Test wheel for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
         run: |
-          false && sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} find /build_wheel/
           version=`cat version`
           echo version=$version
           sudo cp -v glibc-check.sh ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/zstd-$version/
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version/ ; echo LLH; ls -lh build/*/zstd.so; echo LDD; ldd build/*/zstd.so;echo FILE; file build/*/zstd.so; echo LIBC; bash ./glibc-check.sh build/*/zstd.so"
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version && ${{matrix.os.pypkg}} setup.py test"
 
+      - name: Test module for SIMD instructions, ${{matrix.os.pypkg}} ${{matrix.os.arch}}
+        if: matrix.os.matrix == 'linux'
+        run: |
+          version=`cat version`
+          echo version=$version
+          sudo cp -v simd-check ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/zstd-$version/
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version/ ; echo LLH; ls -lh build/*/zstd.so; echo SIMD; bash ./simd-check build/*/zstd.so"
+
       - name: Pepare wheel for upload
         if: matrix.os.matrix == 'linux'
         run: |

From 6081d300ba5aa6003190a5692ab3128da495e1b6 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Thu, 4 Jun 2026 22:26:19 +0300
Subject: [PATCH 25/31] simplify name

---
 .github/workflows/Build_wheels_for_cpython27_x86.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86.yml b/.github/workflows/Build_wheels_for_cpython27_x86.yml
index fd033ccf0..b5c9f9736 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86.yml
@@ -117,7 +117,7 @@ jobs:
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version/ ; echo LLH; ls -lh build/*/zstd.so; echo LDD; ldd build/*/zstd.so;echo FILE; file build/*/zstd.so; echo LIBC; bash ./glibc-check.sh build/*/zstd.so"
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version && ${{matrix.os.pypkg}} setup.py test"
 
-      - name: Test module for SIMD instructions, ${{matrix.os.pypkg}} ${{matrix.os.arch}}
+      - name: Test module for SIMD instructions
         if: matrix.os.matrix == 'linux'
         run: |
           version=`cat version`

From 43142c5d23b7441bdd9ea95680ea3628a70c5a54 Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Thu, 4 Jun 2026 22:34:57 +0300
Subject: [PATCH 26/31] for #320: add test for simd for cython2.7 amd64

---
 .../Build_wheels_for_cpython27_x86_64.yml        | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
index 81398505d..53ae0b621 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
@@ -122,15 +122,15 @@ jobs:
            sudo cp -v ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/zstd-$version/dist/* ./dist
            sudo ls -lh ./dist/* 
            sudo mv -v ./dist/"zstd-$version-${{matrix.os.pyengine_tag}}-linux_${{matrix.os.tag_arch}}.whl" ./dist/"zstd-$version-${{matrix.os.pyengine_tag}}-${{matrix.os.libc_tag}}_${{matrix.os.tag_arch}}.whl"
-           
 
-#      - name: Upload artifacts
-#        uses: actions/upload-artifact@v4
-#        with:
-#          name: wheels
-#.         path: ./dist
-#          compression-level: 0
-          
+      - name: Test module for SIMD instructions
+        if: matrix.os.matrix == 'linux'
+        run: |
+          version=`cat version`
+          echo version=$version
+          sudo cp -v simd-check ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/zstd-$version/
+          sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash-c "cd /build_wheel/zstd-$version/ ; echo LLH; ls -lh build/*/zstd.so; echo SIMD; bash ./simd-check build/*/zstd.so"
+
       - name: Test for secrets access
         id: check_secrets
         # If a third party makes a pull request

From 154704fdeb2933db85c5fbbcb8042d589a5f2e1c Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Fri, 5 Jun 2026 10:54:03 +0300
Subject: [PATCH 27/31] Enable rusoft ppa for cython2.7 x86

---
 .github/workflows/Build_wheels_for_cpython27_x86.yml | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86.yml b/.github/workflows/Build_wheels_for_cpython27_x86.yml
index b5c9f9736..fbc64511a 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86.yml
@@ -63,9 +63,9 @@ jobs:
           sudo mount none ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/proc -t proc
           sudo mount none ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/dev/pts -t devpts
           sudo mount none ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/sys -t sysfs
-          echo "# deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/python ubuntu-${{matrix.os.release}} main" > rusoft-python.list
-          echo "# deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/backports ubuntu-${{matrix.os.release}} main" > rusoft-backports.list
-          echo "# deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/packages ubuntu-${{matrix.os.release}} main" > rusoft-packages.list
+          echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/python ubuntu-${{matrix.os.release}} main" > rusoft-python.list
+          echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/backports ubuntu-${{matrix.os.release}} main" > rusoft-backports.list
+          echo " deb [trusted=yes] http://packages.rusoft.ru/ppa/rusoft/packages ubuntu-${{matrix.os.release}} main" > rusoft-packages.list
           echo "# deb [trusted=yes] http://ppa.launchpadcontent.net/deadsnakes/ppa/ubuntu ${{matrix.os.release}} main" > deadsnakes.list
           echo "# deb [trusted=yes] http://apt.llvm.org/${{matrix.os.release}}/ llvm-toolchain-${{matrix.os.release}}-20 main " > clang.list
           
@@ -134,7 +134,6 @@ jobs:
            sudo ls -lh ./dist/* 
            sudo mv -v ./dist/"zstd-$version-${{matrix.os.pyengine_tag}}-linux_${{matrix.os.tag_arch}}.whl" ./dist/"zstd-$version-${{matrix.os.pyengine_tag}}-${{matrix.os.libc_tag}}_${{matrix.os.tag_arch}}.whl"
 
-          
       - name: Test for secrets access
         id: check_secrets
         # If a third party makes a pull request

From 788ccf6f50ccd31262a0eb453d64f5158e50163d Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Fri, 5 Jun 2026 12:52:47 +0300
Subject: [PATCH 28/31] output cpuinfo

---
 .github/workflows/Build_wheels_for_cpython27_x86.yml    | 2 ++
 .github/workflows/Build_wheels_for_cpython27_x86_64.yml | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86.yml b/.github/workflows/Build_wheels_for_cpython27_x86.yml
index fbc64511a..a0077d651 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86.yml
@@ -122,6 +122,8 @@ jobs:
         run: |
           version=`cat version`
           echo version=$version
+          echo cpuinfo
+          cat /proc/cpuinfo
           sudo cp -v simd-check ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/zstd-$version/
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version/ ; echo LLH; ls -lh build/*/zstd.so; echo SIMD; bash ./simd-check build/*/zstd.so"
 
diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
index 53ae0b621..f696d1c93 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
@@ -128,6 +128,8 @@ jobs:
         run: |
           version=`cat version`
           echo version=$version
+          echo cpuinfo
+          cat /proc/cpuinfo
           sudo cp -v simd-check ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/zstd-$version/
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash-c "cd /build_wheel/zstd-$version/ ; echo LLH; ls -lh build/*/zstd.so; echo SIMD; bash ./simd-check build/*/zstd.so"
 

From 6c0a45fb24afd5bfe0b5ce0f3f22be680dea43aa Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Fri, 5 Jun 2026 13:58:41 +0300
Subject: [PATCH 29/31] rename action yamls, fix url for 3.9 pip

---
 ..._x86_64_u20.yml => Build_wheels_for_cpython35_x64_u16.yml} | 2 +-
 ..._x86_64_u20.yml => Build_wheels_for_cpython36_x64_u16.yml} | 2 +-
 ..._x86_64_u24.yml => Build_wheels_for_cpython37_x64_u16.yml} | 0
 ..._x86_64_u24.yml => Build_wheels_for_cpython38_x64_u16.yml} | 0
 ..._x86_64_u24.yml => Build_wheels_for_cpython39_x64_u16.yml} | 4 ++--
 .github/workflows/Build_wheels_for_cpython39_x86.yml          | 4 ++--
 6 files changed, 6 insertions(+), 6 deletions(-)
 rename .github/workflows/{Build_wheels_for_cpython35_x86_64_u20.yml => Build_wheels_for_cpython35_x64_u16.yml} (99%)
 rename .github/workflows/{Build_wheels_for_cpython36_x86_64_u20.yml => Build_wheels_for_cpython36_x64_u16.yml} (99%)
 rename .github/workflows/{Build_wheels_for_cpython37_x86_64_u24.yml => Build_wheels_for_cpython37_x64_u16.yml} (100%)
 rename .github/workflows/{Build_wheels_for_cpython38_x86_64_u24.yml => Build_wheels_for_cpython38_x64_u16.yml} (100%)
 rename .github/workflows/{Build_wheels_for_cpython39_x86_64_u24.yml => Build_wheels_for_cpython39_x64_u16.yml} (98%)

diff --git a/.github/workflows/Build_wheels_for_cpython35_x86_64_u20.yml b/.github/workflows/Build_wheels_for_cpython35_x64_u16.yml
similarity index 99%
rename from .github/workflows/Build_wheels_for_cpython35_x86_64_u20.yml
rename to .github/workflows/Build_wheels_for_cpython35_x64_u16.yml
index 2e6ab6f63..1ae2779de 100644
--- a/.github/workflows/Build_wheels_for_cpython35_x86_64_u20.yml
+++ b/.github/workflows/Build_wheels_for_cpython35_x64_u16.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.5 x86_64 on Ubuntu16 with GCC-5 All warnings errors 
+name: Build wheels for CPython3.5 x64 on Ubuntu16 with GCC-5 All warnings errors 
 
 on: [push, pull_request]
 
diff --git a/.github/workflows/Build_wheels_for_cpython36_x86_64_u20.yml b/.github/workflows/Build_wheels_for_cpython36_x64_u16.yml
similarity index 99%
rename from .github/workflows/Build_wheels_for_cpython36_x86_64_u20.yml
rename to .github/workflows/Build_wheels_for_cpython36_x64_u16.yml
index a4d3967f4..8d385ee07 100644
--- a/.github/workflows/Build_wheels_for_cpython36_x86_64_u20.yml
+++ b/.github/workflows/Build_wheels_for_cpython36_x64_u16.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.6 x86_64 on Ubuntu16 with All warnings errors 
+name: Build wheels for CPython3.6 x64 on Ubuntu16 with All warnings errors 
 
 on: [push, pull_request]
 
diff --git a/.github/workflows/Build_wheels_for_cpython37_x86_64_u24.yml b/.github/workflows/Build_wheels_for_cpython37_x64_u16.yml
similarity index 100%
rename from .github/workflows/Build_wheels_for_cpython37_x86_64_u24.yml
rename to .github/workflows/Build_wheels_for_cpython37_x64_u16.yml
diff --git a/.github/workflows/Build_wheels_for_cpython38_x86_64_u24.yml b/.github/workflows/Build_wheels_for_cpython38_x64_u16.yml
similarity index 100%
rename from .github/workflows/Build_wheels_for_cpython38_x86_64_u24.yml
rename to .github/workflows/Build_wheels_for_cpython38_x64_u16.yml
diff --git a/.github/workflows/Build_wheels_for_cpython39_x86_64_u24.yml b/.github/workflows/Build_wheels_for_cpython39_x64_u16.yml
similarity index 98%
rename from .github/workflows/Build_wheels_for_cpython39_x86_64_u24.yml
rename to .github/workflows/Build_wheels_for_cpython39_x64_u16.yml
index 7be8b8df3..ee1752627 100644
--- a/.github/workflows/Build_wheels_for_cpython39_x86_64_u24.yml
+++ b/.github/workflows/Build_wheels_for_cpython39_x64_u16.yml
@@ -1,4 +1,4 @@
-name: Build wheels for CPython3.9 x86_64 on Ubuntu16
+name: Build wheels for CPython3.9 x64 on Ubuntu16
 
 on: [push, pull_request]
 
@@ -23,7 +23,7 @@ jobs:
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             # pyver: "3.7"
-            getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
+            getpipurl: https://bootstrap.pypa.io/pip/3.9/get-pip.py
             pypkg: python3.9
             pypkgadd: python3.9-distutils
             pyengine_tag: cp39-cp39
diff --git a/.github/workflows/Build_wheels_for_cpython39_x86.yml b/.github/workflows/Build_wheels_for_cpython39_x86.yml
index f2ae642cc..bbe1f45ba 100644
--- a/.github/workflows/Build_wheels_for_cpython39_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython39_x86.yml
@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - name: Ubuntu 24+16 i386 CPython 3.9
+          - name: Ubuntu 24+16 i686 CPython 3.9
             runs-on: ubuntu-latest
             matrix: linux
             arch: i386
@@ -23,7 +23,7 @@ jobs:
             mirror: http://azure.archive.ubuntu.com/ubuntu
             #version: 1.5.6.7
             #pyver: "3.9"
-            getpipurl: https://bootstrap.pypa.io/pip/get-pip.py
+            getpipurl: https://bootstrap.pypa.io/pip/3.9/get-pip.py
             pypkg: python3.9
             pypkgadd: python3.9-distutils
             pyengine_tag: cp39-cp39

From a4f1aa44faf0b17a1c6ac6c22092a2ba3a27e57e Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Fri, 5 Jun 2026 19:03:21 +0300
Subject: [PATCH 30/31] Add new script to check actual cpu flags

---
 simd-check-cpuinfo.py | 122 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100755 simd-check-cpuinfo.py

diff --git a/simd-check-cpuinfo.py b/simd-check-cpuinfo.py
new file mode 100755
index 000000000..68f83ff5b
--- /dev/null
+++ b/simd-check-cpuinfo.py
@@ -0,0 +1,122 @@
+#!/usr/bin/env python
+
+import os
+import sys
+
+cpuinfofp = "/proc/cpuinfo"
+
+f = open(cpuinfofp,"r")
+lines = f.readlines()
+f.close()
+
+flagsln = ""
+
+for line in lines:
+  if line.startswith("flags\t\t:"):
+    flagsln = line
+    break
+
+if not flagsln:
+  print("line with flags not found. lines:")
+  print(lines)
+  sys.exit(1)
+
+flags = flagsln.split(':')[1].strip().split()
+#print("found flags:")
+print(flags)
+
+sys.stdout.write("SSE: ")
+if 'sse' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("SSE2: ")
+if 'sse2' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("SSE3: ")
+if 'sse3' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("sSSE3: ")
+if 'ssse3' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("SSE4.1: ")
+if 'sse4_1' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("SSE4.2: ")
+if 'sse4_2' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("AVX: ")
+if 'avx' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("AVX2: ")
+if 'avx2' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("AVX512f: ")
+if 'avx512f' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("AVX512vl: ")
+if 'avx512vl' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("AVX512dq: ")
+if 'avx512dq' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("AVX512bw: ")
+if 'avx512bw' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("FMA: ")
+if 'fma' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("F16C: ")
+if 'f16c' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("BMI1: ")
+if 'bmi1' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")
+
+sys.stdout.write("BMI2: ")
+if 'bmi2' in flags:
+  sys.stdout.write("yes\n")
+else:
+  sys.stdout.write("no\n")

From e292c8a7d72d5da125794f9c1a9616c944c8fcea Mon Sep 17 00:00:00 2001
From: Sergey Dryabzhinsky <sergey.dryabzhinsky+github@gmail.com>
Date: Mon, 8 Jun 2026 15:08:37 +0300
Subject: [PATCH 31/31] Add new script to check simd instructions supported by
 cpu

---
 .github/workflows/Build_wheels_for_cpython27_x86.yml    | 4 ++--
 .github/workflows/Build_wheels_for_cpython27_x86_64.yml | 4 ++--
 simd-check-cpuinfo.py                                   | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/Build_wheels_for_cpython27_x86.yml b/.github/workflows/Build_wheels_for_cpython27_x86.yml
index a0077d651..78a7538ca 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86.yml
@@ -85,7 +85,7 @@ jobs:
       - name: Pepare dev files
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y libzstd-dev
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y python3
 
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
@@ -123,7 +123,7 @@ jobs:
           version=`cat version`
           echo version=$version
           echo cpuinfo
-          cat /proc/cpuinfo
+          ./simd-cklheck-cpuinfo.py
           sudo cp -v simd-check ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/zstd-$version/
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash -c "cd /build_wheel/zstd-$version/ ; echo LLH; ls -lh build/*/zstd.so; echo SIMD; bash ./simd-check build/*/zstd.so"
 
diff --git a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
index f696d1c93..a468db480 100644
--- a/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
+++ b/.github/workflows/Build_wheels_for_cpython27_x86_64.yml
@@ -85,7 +85,7 @@ jobs:
       - name: Pepare dev files
         if: matrix.os.matrix == 'linux'
         run: |
-           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y libzstd-dev
+           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /usr/bin/apt install -y python3
 
       - name: Pepare for ${{matrix.os.pypkg}} ${{matrix.os.arch}}
         if: matrix.os.matrix == 'linux'
@@ -129,7 +129,7 @@ jobs:
           version=`cat version`
           echo version=$version
           echo cpuinfo
-          cat /proc/cpuinfo
+          ./simd-check-cpuinfo.py
           sudo cp -v simd-check ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}}/build_wheel/zstd-$version/
           sudo chroot ./ubuntu-${{matrix.os.release}}-${{matrix.os.arch}} /bin/bash-c "cd /build_wheel/zstd-$version/ ; echo LLH; ls -lh build/*/zstd.so; echo SIMD; bash ./simd-check build/*/zstd.so"
 
diff --git a/simd-check-cpuinfo.py b/simd-check-cpuinfo.py
index 68f83ff5b..5a675d921 100755
--- a/simd-check-cpuinfo.py
+++ b/simd-check-cpuinfo.py
@@ -23,7 +23,7 @@
 
 flags = flagsln.split(':')[1].strip().split()
 #print("found flags:")
-print(flags)
+#print(flags)
 
 sys.stdout.write("SSE: ")
 if 'sse' in flags: