Bitcoin Improvement Proposals are design documents providing information to the bitcoin community, or describing a new feature for bitcoin or its processes or environment.
As per BIP0001 _BIP Purpose and Guidelines_, there are three kinds of BIP:
* A _Standards_ Track 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.
* An _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 are free to ignore Informational BIPs or follow their advice.
* A _Process_ BIP describes a process surrounding bitcoin, or proposes a change to (or an event in) a process. Process BIPs are like Standards Track BIPs but apply to areas other than the bitcoin protocol itself. They may 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.
Bitcoin Improvement Proposals are recorded in a versioned repository on https://github.com/bitcoin/bips[GitHub]. <<table_d-1>> shows a snapshot of BIPs in the Fall of 2014. Consult the authoritative repository for up-to-date information on existing BIPs and their contents.
|[[bip0014]]14|link:https://github.com/bitcoin/bips/blob/master/bip-0014.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0014.mediawiki]|Protocol Version and User Agent |Amir
|[[bip0019]]19|link:https://github.com/bitcoin/bips/blob/master/bip-0019.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0019.mediawiki]|M-of-N Standard Transactions (Low SigOp)
|[[bip0023]]23|link:https://github.com/bitcoin/bips/blob/master/bip-0023.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0023.mediawiki]|getblocktemplate - Pooled Mining |Luke
|[[bip0036]]36|link:https://github.com/bitcoin/bips/blob/master/bip-0036.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0036.mediawiki]|Custom Services |Stefan Thomas |Standard
|Draft
|[[bip0037]]37|link:https://github.com/bitcoin/bips/blob/master/bip-0037.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0037.mediawiki]|Bloom filtering |Mike Hearn and Matt
|[[bip0039]]39|link:https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki]|Mnemonic code for generating deterministic
keys |Slush |Standard |Draft
|[[bip0040]]40|link:https://github.com/bitcoin/bips/blob/master/bip-0040.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0040.mediawiki]|Stratum wire protocol |Slush |Standard |BIP number allocated
|[[bip0041]]41|link:https://github.com/bitcoin/bips/blob/master/bip-0041.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0041.mediawiki]|Stratum mining protocol |Slush |Standard |BIP number allocated
|[[bip0042]]42|link:https://github.com/bitcoin/bips/blob/master/bip-0042.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0042.mediawiki]|A finite monetary supply for bitcoin
|Pieter Wuille |Standard |Draft
|[[bip0043]]43|link:https://github.com/bitcoin/bips/blob/master/bip-0043.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0043.mediawiki]|Purpose Field for Deterministic Wallets
|Slush |Standard |Draft
|[[bip0044]]44|link:https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki]|Multi-Account Hierarchy for Deterministic
|[[bip0062]]62|link:https://github.com/bitcoin/bips/blob/master/bip-0062.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0062.mediawiki]|Dealing with malleability |Pieter Wuille
|Standard |Draft
|[[bip0063]]63|link:https://github.com/bitcoin/bips/blob/master/bip-0063.mediawiki[https://github.com/bitcoin/bips/blob/master/bip-0063.mediawiki]|Stealth Addresses |Peter Todd |Standard |BIP number allocated
