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74 lines
9.3 KiB
74 lines
9.3 KiB
[[appdxbitcoinimpproposals]]
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[appendix]
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== Bitcoin Improvement Proposals
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Bitcoin Improvement Proposals are design documents providing information to the Bitcoin community or describing a new feature for Bitcoin or its processes or environment.
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As per BIP1 _BIP Purpose and Guidelines_, there are three((("BIPs (Bitcoin Improvement Proposals)", "types of"))) kinds of BIPs:
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_Standard_ BIP:: Describes any change that affects most or all Bitcoin implementations, such as a change to the network protocol, a change in block or transaction validity rules, or any change or addition that affects the interoperability of applications using Bitcoin.
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_Informational_ BIP:: Describes a Bitcoin design issue or provides general guidelines or information to the Bitcoin community, but does not propose a new feature. Informational BIPs do not necessarily represent a Bitcoin community consensus or recommendation, so users and implementors may ignore informational BIPs or follow their advice.
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_Process_ BIP:: Describes a Bitcoin process or proposes a change to (or an event in) a process. Process BIPs are like standard BIPs but apply to areas other than the Bitcoin protocol itself. They might propose an implementation but not to Bitcoin's codebase; they often require community consensus. Unlike informational BIPs, they are more than recommendations, and users are typically not free to ignore them. Examples include procedures, guidelines, changes to the decision-making process, and changes to the tools or environment used in Bitcoin development. Any meta-BIP is also considered a process BIP.
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BIPs are recorded in a https://oreil.ly/jjO0R[versioned repository on GitHub].
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An MIT-licensed document from the open source Bitcoin Core project,
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reproduced here in edited form, describes which BIPs it implements, including listing
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the Pull Request (PR) and version of Bitcoin Core where support for each BIP was added or
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significantly changed.
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BIPs that are ((("BIPs (Bitcoin Improvement Proposals)", "implemented by Bitcoin Core", id="bips-implement")))((("Bitcoin Core", "BIPs implemented by", id="bitcoin-core-bips")))implemented by Bitcoin Core:
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- BIP9: The changes allowing multiple soft forks to be deployed in parallel have been implemented since v0.12.1 (PR #7575).
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- BIP11: Multisig outputs are standard since v0.6.0 (PR #669).
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- BIP13: The address format for P2SH addresses has been implemented since v0.6.0 (PR #669).
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- BIP14: The subversion string is being used as User Agent since v0.6.0 (PR #669).
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- BIP16: The pay-to-script-hash evaluation rules have been implemented since v0.6.0, and took effect on April 1st 2012 (PR #748).
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- BIP21: The URI format for Bitcoin payments has been implemented since v0.6.0 (PR #176).
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- BIP22: The 'getblocktemplate' (GBT) RPC protocol for mining has been implemented since v0.7.0 (PR #936).
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- BIP23: Some extensions to GBT have been implemented since v0.10.0rc1, including longpolling and block proposals (PR #1816).
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- BIP30: 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).
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- BIP31: The 'pong' protocol message (and the protocol version bump to 60001) has been implemented since v0.6.1 (PR #1081).
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- BIP32: Hierarchical Deterministic Wallets has been implemented since v0.13.0 (PR #8035).
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- BIP34: 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).
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- BIP35: 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+ (BIP111) peers.
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[role="less_space pagebreak-before"]
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- BIP37: The bloom filtering for transaction relaying, partial Merkle trees for blocks, and the protocol version bump to 70001 (enabling low-bandwidth lightweight clients) has been implemented since v0.8.0 (PR #1795). Disabled by default since v0.19.0, can be enabled by the +-peerbloomfilters+ option.
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- BIP42: The bug that would have caused the subsidy schedule to resume after block 13440000 was fixed in v0.9.2 (PR #3842).
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- BIP43: The experimental descriptor wallets introduced in v0.21.0 by default use the Hierarchical Deterministic Wallet derivation proposed by BIP43 (PR #16528).
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- BIP44: The experimental descriptor wallets introduced in v0.21.0 by default use the Hierarchical Deterministic Wallet derivation proposed by BIP44 (PR #16528).
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- BIP49: The experimental descriptor wallets introduced in v0.21.0 by default use the Hierarchical Deterministic Wallet derivation proposed by BIP49 (PR #16528).
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- BIP61: 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).
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- BIP65: The ++CHECKLOCKTIMEVERIFY++ soft fork 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.
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- BIP66: The strict DER rules and associated version 3 blocks have been implemented since v0.10.0 (PR #5713).
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- BIP68: Sequence locks have been implemented as of v0.12.1 (PR #7184), and have been buried since v0.19.0 (PR #16060).
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- BIP70 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).
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- BIP84: The experimental descriptor wallets introduced in v0.21.0 by default use the Hierarchical Deterministic Wallet derivation proposed by BIP84. (PR #16528)
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- BIP86: Descriptor wallets by default use the Hierarchical Deterministic Wallet derivation proposed by BIP86 since v23.0 (PR #22364).
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- BIP90: Trigger mechanism for activation of BIPs 34, 65, and 66 has been simplified to block height checks since v0.14.0 (PR #8391).
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- BIP111: +NODE_BLOOM+ service bit added and enforced for all peer versions as of v0.13.0 (PR #6579 and PR #6641).
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- BIP112: The +CHECKSEQUENCEVERIFY+ opcode has been implemented since v0.12.1 (PR #7524), and has been buried since v0.19.0 (PR #16060).
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- BIP113: 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).
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- BIP125: Opt-in full replace-by-fee signaling partially implemented.
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- BIP130: direct headers announcement is negotiated with peer versions ≥70012 as of v0.12.0 (PR 6494).
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- BIP133: feefilter messages are respected and sent for peer versions ≥70013 as of v0.13.0 (PR 7542).
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- BIP141: 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).
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- BIP143: 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).
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- BIP144: Segregated Witness as of 0.13.0 (PR 8149).
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- BIP145: getblocktemplate updates for Segregated Witness as of v0.13.0 (PR 8149).
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- BIP147: +NULLDUMMY+ soft fork as of v0.13.1 (PR 8636 and PR 8937), buried since v0.19.0 (PR #16060).
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- BIP152: Compact block transfer and related optimizations are used as of v0.13.0 (PR 8068).
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- BIP155: The 'addrv2' and 'sendaddrv2' messages which enable relay of Tor V3 addresses (and other networks) are supported as of v0.21.0 (PR 19954).
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- BIP157 158: Compact Block Filters for Light Clients can be indexed as of v0.19.0 (PR #14121) and served to peers on the P2P network as of v0.21.0 (PR #16442).
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- BIP159: 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).
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- BIP173: 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).
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- BIP174: RPCs to operate on Partially Signed Bitcoin Transactions (PSBT) are present as of v0.17.0 (PR 13557).
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- BIP176: Bits Denomination [QT only] is supported as of v0.16.0 (PR 12035).
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- BIP325: Signet test network is supported as of v0.21.0 (PR 18267).
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- BIP339: Relay of transactions by wtxid is supported as of v0.21.0 (PR 18044).
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- BIP340 341 342: Validation rules for Taproot (including Schnorr signatures and Tapscript leaves) are implemented as of v0.21.0 (PR 19953), with mainnet activation as of v0.21.1 (PR 21377, PR 21686).
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- BIP350: Addresses for native v1+ segregated Witness outputs use bech32m instead of bech32 as of v22.0 (PR 20861).
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- BIP371: Taproot fields for PSBT as of v24.0 (PR 22558).
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- BIP380 381 382 383 384 385: Output Script Descriptors, and most of Script Expressions are implemented as of v0.17.0 (PR 13697).
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- BIP386: +tr()+ Output Script Descriptors are implemented as((("BIPs (Bitcoin Improvement Proposals)", "implemented by Bitcoin Core", startref="bips-implement")))((("Bitcoin Core", "BIPs implemented by", startref="bitcoin-core-bips"))) of v22.0 (PR 22051).
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