This is the consolidated release history for Rincoin Core. It complements, rather than replaces, the upstream Litecoin/Bitcoin per-version notes archived under doc/release-notes/, which are kept for backward compatibility and to ease adoption of upstream changes.

Network and consensus constants referenced below are documented, with their derivations, in doc/rincoin-parameters.md.

Version scheme: v[GENERATION].[MAJOR].[MINOR]. Rincoin Core v1.0.0 corresponds to the Litecoin v0.21.4 base.

No consensus rules change in this line; it is maintenance and infrastructure work only. Highlights so far:

• Reverted the v1.1.0-rc1 RinHash "activations table." The JSON-driven, code-generated consensus table has been removed. RinHash Argon2d parameters are hard-coded again (t=2, m=64, lanes=1, salt="RinCoinSalt"); the PoW output is unchanged. The per-network peer-protocol-version floor is retained as plain Consensus::Params constants (see doc/rincoin-parameters.md §5).
• Small correctness fixes: add missing <stdexcept> include; use CHECK_NONFATAL instead of assert for the MWEB HogEx vout invariant so a construction-time violation cannot abort the node.
• Network identity: the internal IPv6 prefix is now derived from SHA256("rincoin") (FD 2D DD 82 F5 C8) instead of the inherited Litecoin-derived value, with matching net/netbase test vectors.
• Continuous integration: a GitHub Actions workflow runs the upstream container-based CI harness with two legs — a plain unit+functional build and an ASan/UBSan build. The gate is headless (core unit tests + functional suite); Qt GUI test vectors are a separate follow-up. Each run publishes a downloadable test-results-<leg> artifact.
• Test suite made green: rebranded the bitcoin-util test fixtures to rincoin-tx with Rincoin addresses, dropped the stale Litecoin smoke benchmark from make check, and added UBSan suppressions for the intentional wrapping arithmetic in the crypto primitives.
• Fixed a signed-integer overflow in the MWEB fee calculation (CFeeRate): mweb_weight * BASE_MWEB_FEE now saturates instead of overflowing on pathological weights. Caught by UBSan; the result is unchanged for any valid transaction (real MWEB weights are far below the saturation bound).
• Fixed a missing cs_main lock in CChainState::InitCoinsDB. The MWEB coins-view initialization reads the best block and coins DB, which require cs_main; the lock was not taken, so DEBUG_LOCKORDER (sanitizer) builds aborted during test setup. Behavior is unchanged in release builds.
• Further sanitizer fixes: held cs_wallet in the MWEB stealth-address unit test (matching production callers, so DEBUG_LOCKORDER no longer aborts), and suppressed the intentional wrapping in Boost's hash_combine used by libmw aggregation.
• Local build helpers (developer tooling, not shipped): contrib/build-windows-local.ps1 (Docker + MinGW cross-build on Windows) and contrib/build-linux-local.sh (native, ccache-accelerated), plus contrib/test-asan-local.ps1 / .sh, which reproduce the CI ASan/UBSan leg in Docker (with a fast single-suite mode) so sanitizer issues can be caught locally without commit/push. All are for local testing only and keep their outputs and caches out of the repository.
• Docs: added doc/rincoin-parameters.md and this consolidated history.

Acknowledgement. Some of the above test-suite adaptations overlap with work in the parallel Aevust fork, which reached a number of them first; a few we arrived at independently before noticing theirs. Credit to the Aevust contributors for the test-fixture and benchmark clean-ups. This applies to test and tooling changes only — consensus rules are decided and implemented independently by this project.

No public version number is assigned to this development line yet.

A community-maintenance and infrastructure release candidate. It did not change mainnet consensus rules. Notable items:

• ARM64 (aarch64) Linux release targets and CI/release-engineering improvements; MinGW release optimization.
• A RinHash "activations table" (JSON → generated header → runtime resolver) and a peer-protocol-version floor (70018) scheduled per network.
• MWEB HogEx empty-vin handling fix.
• GPG-signed release tags.

Note: the activations-table machinery introduced here has since been reverted in the current development line (see above); the peer-version floor is retained as plain constants.

• Fixed all unit tests that still referenced Litecoin (LTC) constants so they use Rincoin (RIN) parameters throughout.
• Header-synchronization optimization for faster initial headers download.
• DNS-seed logging improvements.

• Fixed MWEB file operations failing on Windows with non-ASCII data paths.
• DNS-seed updates and additional seeders.
• Qt: shift+click range selection in the coin-control dialog.
• Updated checkpoints and build tooling; assorted build fixes.

These releases introduced RinHash v2. It was not adopted by the network and was subsequently rolled back; the RinHash v1 proof-of-work remains in force. These versions are listed here only for historical completeness.

• Version bump and minor fixes over v1.0.0 (icons, chainparams touch-ups, max-supply information).

The initial Rincoin Core baseline, forked from Litecoin v0.21.4, introducing the RinHash proof-of-work and Rincoin network identity. It carried the upstream security backports present in Litecoin v0.21.4, including:

• CVE-2024-35202 — remote DoS via blocktxn message handling (backported from Bitcoin Core).
• Mutated-blocks propagation fix (backported from Bitcoin Core).
• miniupnp infinite-loop / OOM fix (backported).
• Default -peerblockfilters/-blockfilterindex to off when pruning is enabled, plus functional-test fixes.

Thanks to everyone who contributed, including the upstream Bitcoin Core and Litecoin developers whose work this builds on.