Bitcoin Core Legacy Releases Articles

Bitcoin Core 0.20.2 guide to discouragement, wallet notifications, PSBT UTXO compatibility, Bech32m, source builds and rollback.

Bitcoin Core 0.21.2 guide to address-relay limits, scan progress, wallet access, includeconf parsing, build compatibility and upgrade tests.

Bitcoin Core 0.21.1 guide covering Taproot Speedy Trial parameters, enforcement boundary, miner signalling, Bech32m address handling, wallet limits and rollout.

Bitcoin Core 0.21 guide covering anchor peers, compact-filter serving, Signet, wtxid relay, experimental descriptor wallets, SQLite, new RPCs and safe rollback.

Bitcoin Core 0.20.1 guide covering peer discouragement, wallet notifications, PSBT UTXO compatibility, concurrent wallet loading, mining templates and rollback.

Bitcoin Core 0.20 guide covering BIP61 removal, bech32 defaults, PSBT changes, RPC whitelists, asmap, platform requirements, known build issues and rollback.

Bitcoin Core 0.19.1 guide covering wallet reuse fixes, listsinceblock conflicts, PSBT bounds, block-filter startup, ZMQ, RISC-V and safe rollback.

Bitcoin Core 0.18.1 guide covering P2P and Tor fixes, PSBT and multisig correctness, pruning results, wallet GUI caveats, builds, testing and rollback.

Bitcoin Core 0.18.0 guide covering mining, RPC exposure, systemd paths, PSBT and descriptor RPCs, removed APIs, wallet caveats and rollback testing.

Bitcoin Core 0.17.1 guide covering label behaviour, wallet and PSBT fixes, network hardening, upgrade and downgrade boundaries, testing and rollback.

Bitcoin Core 0.17.0 guide covering txindex and chainstate migrations, dynamic wallets, labels, PSBT, partial-spend avoidance and guarded upgrades.

Bitcoin Core 0.16.3 release guide covering the urgent duplicate-input crash fix, vulnerable versions, signrawtransaction correction and incident-safe upgrades.