Releases

Review changes before upgrading. Published assets and full notes are maintained in the project's GitHub repository.

CURRENT PUBLISHED RELEASE

BitcoinII Core v31.1.0

August 29, 2026

Release files ↗

This release documents substantial changes to BC2's consensus and node behavior:

ShockWave per-block difficulty adjustment
BC2 transaction replay protection
Consensus-level Ordinals, inscriptions, and Runes mitigation
Fork-aware header synchronization
Related updates to mining, mempool, wallet, RPC, validation, and PSBT handling

BitcoinII Core v29.1.0

November 27, 2025 · Historical release

This earlier release included updated DNS seeds and checkpoints. Its release notice says prior v29 builds are deprecated; use the current release for normal operation.

Browse the full release archive ↗

Upgrading a node?

Read the release notes and back up wallet data before changing versions. Do not switch back to a pre-ShockWave consensus release to connect to the current BC2 network.