Release Notes

Always read release notes before upgrading. Some releases can change wallet format, chainstate behavior, consensus activation, indexes, or service interfaces.

This page summarizes release history. The source files are ../tidecoin/CHANGELOG.md and ../tidecoin/doc/release-notes.md.

v1.0.0

Release date in changelog: March 2, 2026.

Tidecoin v1.0.0 is the first major 1.x release line rebased on Bitcoin Core v30 with Tidecoin’s post-quantum integration.

Notable Changes

Area	Summary
Post-quantum signatures	Falcon-512 default, plus Falcon-1024 and ML-DSA schemes implemented behind activation rules.
Scheme registry	Prefix bytes `0x07` through `0x0B` for the five PQ schemes.
Legacy and strict Falcon	Legacy Falcon verification preserved before AuxPoW; strict PQClean verification gated by `SCRIPT_VERIFY_PQ_STRICT`.
PQHD wallet	Hardened-only PQHD derivation, deterministic key generation, multi-seed support, and scheme policy RPCs.
P2P transport	ML-KEM-512 replaces X25519 key exchange in v2 transport.
Script extensions	`OP_SHA512` and witness v1 SHA-512 script hash support gated by AuxPoW.
AuxPoW	Chain ID `8`, `createauxblock`, `submitauxblock`, scrypt parent PoW validation, testnet activation at height `1000`, mainnet disabled.
Mining	YespowerTIDE pre-AuxPoW proof of work and quartering reward schedule.
Network	Tidecoin ports, HRPs, message start bytes, and DNS/testnet settings updated.
Build and packaging	Binary rename, Guix reproducible build updates, macOS deployment/signing fixes.
Testing	PQ signature, PQHD, AuxPoW, ML-KEM transport, wallet, and functional coverage expanded.

Upgrade Checklist

Read the full release notes for the target version.
Back up wallets with backupwallet.
Stop the old node cleanly.
Install or copy the new binaries.
Start the node and watch debug.log.
Verify chain height, wallet loading, RPC behavior, and service integrations.

Important Activation Clarification

Do not infer mainnet activation from implementation alone. A scheme or feature can be implemented in v1.0.0 and still be gated by AuxPoW on mainnet. Use Activation Status for current network state.