BIPs that are implemented by Bitcoin Core (up-to-date up to **v0.21.0**):

`BIP 9`

: The changes allowing multiple soft-forks to be deployed in parallel have been implemented since**v0.12.1**(PR #7575)`BIP 11`

: Multisig outputs are standard since**v0.6.0**(PR #669).`BIP 13`

: The address format for P2SH addresses has been implemented since**v0.6.0**(PR #669).`BIP 14`

: The subversion string is being used as User Agent since**v0.6.0**(PR #669).`BIP 16`

: The pay-to-script-hash evaluation rules have been implemented since**v0.6.0**, and took effect on*April 1st 2012*(PR #748).`BIP 21`

: The URI format for Bitcoin payments has been implemented since**v0.6.0**(PR #176).`BIP 22`

: The 'getblocktemplate' (GBT) RPC protocol for mining has been implemented since**v0.7.0**(PR #936).`BIP 23`

: Some extensions to GBT have been implemented since**v0.10.0rc1**, including longpolling and block proposals (PR #1816).`BIP 30`

: The evaluation rules to forbid creating new transactions with the same txid as previous not-fully-spent transactions were implemented since**v0.6.0**, and the rule took effect on*March 15th 2012*(PR #915).`BIP 31`

: The 'pong' protocol message (and the protocol version bump to 60001) has been implemented since**v0.6.1**(PR #1081).`BIP 32`

: Hierarchical Deterministic Wallets has been implemented since**v0.13.0**(PR #8035).`BIP 34`

: The rule that requires blocks to contain their height (number) in the coinbase input, and the introduction of version 2 blocks has been implemented since**v0.7.0**. The rule took effect for version 2 blocks as of*block 224413*(March 5th 2013), and version 1 blocks are no longer allowed since*block 227931*(March 25th 2013) (PR #1526).`BIP 35`

: The 'mempool' protocol message (and the protocol version bump to 60002) has been implemented since**v0.7.0**(PR #1641). As of**v0.13.0**, this is only available for`NODE_BLOOM`

(BIP 111) peers.`BIP 37`

: The bloom filtering for transaction relaying, partial Merkle trees for blocks, and the protocol version bump to 70001 (enabling low-bandwidth SPV clients) has been implemented since**v0.8.0**(PR #1795). Disabled by default since**v0.19.0**, can be enabled by the`-peerbloomfilters`

option.`BIP 42`

: The bug that would have caused the subsidy schedule to resume after block 13440000 was fixed in**v0.9.2**(PR #3842).`BIP 61`

: The 'reject' protocol message (and the protocol version bump to 70002) was added in**v0.9.0**(PR #3185). Starting**v0.17.0**, whether to send reject messages can be configured with the`-enablebip61`

option, and support is deprecated (disabled by default) as of**v0.18.0**. Support was removed in**v0.20.0**(PR #15437).`BIP 65`

: The CHECKLOCKTIMEVERIFY softfork was merged in**v0.12.0**(PR #6351), and backported to**v0.11.2**and**v0.10.4**. Mempool-only CLTV was added in PR #6124.`BIP 66`

: The strict DER rules and associated version 3 blocks have been implemented since**v0.10.0**(PR #5713).`BIP 68`

: Sequence locks have been implemented as of**v0.12.1**(PR #7184), and have been*buried*since**v0.19.0**(PR #16060).`BIP 70`

`71`

`72`

: Payment Protocol support has been available in Bitcoin Core GUI since**v0.9.0**(PR #5216). Support can be optionally disabled at build time since**v0.18.0**(PR 14451), and it is disabled by default at build time since**v0.19.0**(PR #15584). It has been removed as of**v0.20.0**(PR 17165).`BIP 90`

: Trigger mechanism for activation of BIPs 34, 65, and 66 has been simplified to block height checks since**v0.14.0**(PR #8391).`BIP 111`

:`NODE_BLOOM`

service bit added, and enforced for all peer versions as of**v0.13.0**(PR #6579 and PR #6641).`BIP 112`

: The CHECKSEQUENCEVERIFY opcode has been implemented since**v0.12.1**(PR #7524), and has been*buried*since**v0.19.0**(PR #16060).`BIP 113`

: Median time past lock-time calculations have been implemented since**v0.12.1**(PR #6566), and has been*buried*since**v0.19.0**(PR #16060).`BIP 125`

: Opt-in full replace-by-fee signaling honoured in mempool and mining as of**v0.12.0**(PR 6871). Enabled by default in the wallet GUI as of**v0.18.1**(PR #11605)`BIP 130`

: direct headers announcement is negotiated with peer versions`>=70012`

as of**v0.12.0**(PR 6494).`BIP 133`

: feefilter messages are respected and sent for peer versions`>=70013`

as of**v0.13.0**(PR 7542).`BIP 141`

: Segregated Witness (Consensus Layer) as of**v0.13.0**(PR 8149), defined for mainnet as of**v0.13.1**(PR 8937), and*buried*since**v0.19.0**(PR #16060).`BIP 143`

: Transaction Signature Verification for Version 0 Witness Program as of**v0.13.0**(PR 8149), defined for mainnet as of**v0.13.1**(PR 8937), and*buried*since**v0.19.0**(PR #16060).`BIP 144`

: Segregated Witness as of**0.13.0**(PR 8149).`BIP 145`

: getblocktemplate updates for Segregated Witness as of**v0.13.0**(PR 8149).`BIP 147`

: NULLDUMMY softfork as of**v0.13.1**(PR 8636 and PR 8937),*buried*since**v0.19.0**(PR #16060).`BIP 152`

: Compact block transfer and related optimizations are used as of**v0.13.0**(PR 8068).`BIP 155`

: The 'addrv2' and 'sendaddrv2' messages which enable relay of Tor V3 addresses (and other networks) are supported as of**v0.21.0**(PR 19954).`BIP 158`

: Compact Block Filters for Light Clients can be indexed as of**v0.19.0**(PR #14121).`BIP 159`

: The`NODE_NETWORK_LIMITED`

service bit is signalled as of**v0.16.0**(PR 11740), and such nodes are connected to as of**v0.17.0**(PR 10387).`BIP 173`

: Bech32 addresses for native Segregated Witness outputs are supported as of**v0.16.0**(PR 11167). Bech32 addresses are generated by default as of**v0.20.0**(PR 16884).`BIP 174`

: RPCs to operate on Partially Signed Bitcoin Transactions (PSBT) are present as of**v0.17.0**(PR 13557).`BIP 176`

: Bits Denomination [QT only] is supported as of**v0.16.0**(PR 12035).`BIP 325`

: Signet test network is supported as of**v0.21.0**(PR 18267).`BIP 339`

: Relay of transactions by wtxid is supported as of**v0.21.0**(PR 18044).`BIP 340`

`341`

`342`

: Validation rules for Taproot (including Schnorr signatures and Tapscript leaves) are implemented as of**v0.21.0**(PR 19953), without mainnet activation.