v1.5.3 - Waiting so Long

silverfins_waitingsolong.mp4

Major 📜

• Add MMR (Merkle Mountain Range) block accumulator — append-only commitment over all blocks with compact inclusion proofs + standalone verify, exposed over RPC (proof/block, proof/verify_block). See mmr.ex and api_proof.ex.
• Add state snapshots + chain pruner — snapshot-consistent reads via transaction_with_snapshot, fast-sync state snapshots, and a pruner to bound disk growth. See fabric_snapshot.ex, db_pruner.ex.
• Add submit_and_wait?finalized=true on RPC to block until a tx is finalized (not just committed). See api_tx.ex.
• Harden the WASM contract VM — upgrade to wasmer 7.1.0; fix gas/budget accounting, bulk-mem & seed charging, RNG farming, cache poisoning, and cap call depth at 16.
• 🧪 Land HBSMT (Hot Binary Sparse Merkle Tree) — ~5k-line Merkle tree running alongside legacy HubtV2, with a full soundness/attack test battery. Will be added to consensus in next fork. See hbsmt.rs.

Minor

• Significantly lower RocksDB RAM usage; add memaudit.
• Add finalized | committed | pending tx status to metadata.
• New cursor/start_nonce pagination for tx-by-address queries.
• Peer hardening: malicious-address warning endpoint, drop spammy/unrouted peers, cache IPv4 off STUN, only accept parsable IPv4.
• Fix DoS on the testnet SSL forwarder + validator bitset; rate-limit testnet uPoW endpoints.
• Guard against zstd bombs, negative nonces, and invalid sols (no crash).
• Rewrite DOCS.md (protocol params, WASM contracts, SDKs, networks).
• Snapshot at 63000010.

v1.5.2 - Tree of Might

output.mp4

Major 📜

• Upgrade bintree🌲 to V2 which significantly improves merkle proofs+verification
• Add submit_and_wait?finalized=true on RPC to wait for finality
• Add Rust and more AssembyScript contract examples

Minor:

• Add Prometheus support for RPC metrics feed (BYOT)
• Reduce storage cost per read 10x
• Reduce storage cost per write 10x (didnt allow large contracts to deploy)
• Fix a DoS bug on the testnet SSL forwarder
• Add finalized|committed|pending to tx metadata as status
• Add transfer_nft to API
• Snapshot at 48362121

v1.5.1

Fix issues related to the tx_filter.
To recap:

/api/chain/tx_by_filter?arg0=<b58(sol)>
now naturally checks if the sol is included in the chain

Queries on accounts with tons of transactions will work now

to rebuild ALL CHAIN filters you can use

DB.Entry.Hashbuilder.clear_all()
DB.Entry.Hashbuilder.start()

otherwise itl start building new filters from when you launch.

you should still delete all the old filters via

RocksDB.get_cf_size(:tx_filter)
DB.Entry.Hashbuilder.clear_all()

size of optimized filters should be approx 22G for full chain. If your size is over 30G delete the old filters.

v1.5.0

Upgrade whenever possible, otherwise you will fall out of sync when the next slash_trainer gets called

Major:

• Changes TX filters to use hashfilters (current filters defined here)
• Reorgs slash_trainer args so the mpk is arg0

Minor:

• Temporary hashfilter builder genserver

NOTE:
Please consider arg0 as the receiver PK as its part of the hashfilter for future contract programming.
With hashfilters its possible now to search for arg0 == sol, making it quick to check if a sol is included in the chain.

v1.3.9 - Frieza Upgrade

awaken.mp4

AKA The WASM Executor update 🥳

• Adds full WASM execution live only on testnet and behind a NOOP on mainnet (pending further tests)
• Adds full AssembyScript examples for coding smart contracts
• Fixes large performance regression in RPC /stats api

Minor:

• Relax NetGuard in the case of catchup
• Fix crash inside ComputorGen

v1.3.8 - Kami Road

Update before epoch 434:

• Adds new ExecutionReceipt

#[derive(Clone, Debug)]
pub struct ExecutionReceipt {
    pub txid: Vec<u8>,
    pub success: bool,
    pub result: Vec<u8>,
    pub exec_used: Vec<u8>,
    pub logs: Vec<Vec<u8>>,
}

• Adds storage deposit of 1.0 AMA which is refunded at TX END
• Ensures some extra correctness of TXPool
• Continuing work on VM cost counting and import calling

v1.3.7

fix circulating and epoch reward RPC query

v1.3.6

New snapshot 41960861

v1.3.5

Add exec accounting in epoch 419 to prepare for new WASM contracts

v1.3.4

Update before epoch 416.

• Adds exec_used to tx receipt
• Adds contractstate_tree new CF to store merkle tree for contract state
• Adds slight change to mutations_hash