Release v0.24.0

.github/pull_request_template.md

@@ -1,5 +1,9 @@
 <!-- Thanks for contributing to XChain Platform. -->
 
+## Base branch
+
+- [ ] This pull request targets `develop`. `master` only takes release merges, and a pull request into it from a fork cannot be merged.
+
 ## What this changes
 
 <!-- One or two sentences on what changed and why. Link an issue if there is one. -->

CHANGELOG.md

@@ -7,6 +7,27 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.24.0] - 2026-10-17
+
+### Added
+- Added the mainnet launch gate section, its catalogue row and the prelaunch seed sources, with the flag-day page regenerated.
+- Added the order-match price-cross, nested execute gas sum, settlement bounds and slash gates to the reference registry and catalogue.
+- Added the wallet UI style guide, device layout checklist and layout, network label and shell sizing rules.
+
+### Changed
+- Corrected the wallet README, architecture, keys, signing, security and threat model pages against current source.
+- Documented the new indexer, explorer, encoder, hub and sync settings, including the indexer balance delta mode.
+- Described the oracle aggregation rule the hub applies and the websocket feed reorg, replay and resubscribe pacing.
+- Armed ORDER_MATCH_PRICE_CROSS_ACTIVATION on BTC:testnet at 156908.
+- Armed ORDER_MATCH_PRICE_CROSS_ACTIVATION on LTC:testnet at 4927400.
+- Armed ORDER_MATCH_PRICE_CROSS_ACTIVATION on DOGE:testnet at 68005165.
+- Armed REMOTE_TOKEN_ADMISSION_ACTIVATION on BTC:testnet at 156908.
+- Armed REMOTE_TOKEN_ADMISSION_ACTIVATION on LTC:testnet at 4927400.
+- Armed REMOTE_TOKEN_ADMISSION_ACTIVATION on DOGE:testnet at 68005165.
+
+### Fixed
+- Recorded the six reclaimed chain codes as reserved outright and registered the new encoder refusal reasons.
+
 ## [0.23.0] - 2026-10-11
 
 ### Added

CONTRIBUTING.md

@@ -137,7 +137,7 @@ All byte-level encoding examples and on-chain data samples in the spec must matc
 
 Match the existing log style: a concise subject line, then a short body explaining what changed and why.
 
-- Branch off `develop` and keep history linear (rebase, don't merge). `develop` is where work lands; `master` only ever receives release merges (see [`operations/release-process.md`](./operations/release-process.md)).
+- Branch off `develop` and keep history linear (rebase, don't merge). `develop` is where work lands; `master` only ever receives release merges, and a pull request into `master` from a fork or any other branch fails the `base-branch guard` check (see [`operations/release-process.md`](./operations/release-process.md)).
 - One logical change per commit; don't batch unrelated edits.
 - **No `Co-Authored-By` trailers.** This is a project policy.
 - **Never `--no-verify`.** If a hook fails, fix the cause; don't bypass it.

README.md

@@ -38,7 +38,7 @@ A blockchain-agnostic token protocol currently running on Bitcoin, Litecoin, and
 | [**xchain-vm**](https://github.com/XChain-Platform/xchain-vm/) | Sandboxed JavaScript virtual machine for on-chain smart contracts with gas metering, deterministic execution, and reorg-safe state |
 | [**xchain-contracts**](https://github.com/XChain-Platform/xchain-contracts/) | MIT-licensed template library: audited example smart contracts, reusable patterns, a no-code policy generator, and a CLI, deployed via the ordinary `DEPLOY` action |
 | [**xchain-sdk**](https://github.com/XChain-Platform/xchain-sdk/) | Developer SDK: builders for all 32 developer-invocable actions, 100+ explorer query methods, smart contract support, live WebSocket events, batch builder, PSBT generation |
-| [**xchain-wallet**](https://github.com/XChain-Platform/xchain-wallet/) | Reference self-custodial multi-chain wallet: browser, Chrome extension, Electron desktop, and Capacitor mobile (Android shipped, iOS later) from a single codebase; software + Trezor + Ledger + remote signers (multisig runs as flows over these); full DEX, messaging, contracts, staking, and `window.xchain` dApp bridge |
+| [**xchain-wallet**](https://github.com/XChain-Platform/xchain-wallet/) | Reference self-custodial multi-chain wallet: browser, Chrome extension, Electron desktop, and Capacitor mobile (Android shipped, iOS pending App Store release) from a single codebase; software + Trezor + Ledger + remote signers (multisig runs as flows over these); full DEX, messaging, contracts, staking, and `window.xchain` dApp bridge |
 | [**xchain-regtest-miner**](https://github.com/XChain-Platform/xchain-regtest-miner/) | Auto-mines blocks for regtest development environments |
 | [**xchain-e2e-test**](https://github.com/XChain-Platform/xchain-e2e-test/) | Full-stack Mocha test suite running against a live regtest deployment |
 ## Legal