BIP 2 Revised Bitcoin Improvement Process Explained

This guide explains BIP 2 BIP process, revised in plain English. It covers the problem behind the BIP, why it matters and whether the proposal is part of Bitcoin today.

What makes an idea BIP-able

The process focused on designs requiring coordination across projects or documenting Bitcoin-wide decisions. A local software patch normally belonged in that project’s issue and review workflow. Authors were expected to search previous discussions before investing in a new proposal and to test whether the problem was genuinely shared.

Champion responsibility

A champion wrote the document, shepherded discussion, gathered feedback and documented dissent. The role did not grant authority to activate rules. Focused proposals were preferred because combining unrelated changes made technical review, interoperability and adoption harder to reason about.

Editor boundary

Editors checked completeness, formatting, motivation, compatibility, layer and licensing, assigned numbers and maintained repository metadata. Editorial acceptance meant a proposal was suitable for the record, not that Bitcoin users endorsed it or that implementations had adopted it. Authors were not to self-assign numbers.

Required document evidence

A preamble, abstract, copyright, specification, motivation, rationale, backward-compatibility analysis and reference implementation formed the expected structure where applicable. Competing implementations needed enough detail to interoperate. Test code and documentation were required before final status for implementable specifications.

Status and ownership

Drafts evolved through pull requests and could be transferred to a new champion when the original author became unavailable. Competing direction was not a reason to seize ownership. Versioned source history preserved how the design and objections changed, which is essential when interpreting older statements out of context.

Closed and replaced context

BIP 2’s current header is Closed and names BIP 3 as proposed replacement. Historical articles and internal policy should cite the exact revision and date. Copying its old status vocabulary or editor list into a present submission can create procedural errors even when the technical content is sound.

Proposal-quality audit

Take an internal design and identify its layer, interoperability boundary, motivation, alternatives, compatibility effects, test vectors, licensing and champion. Compare it with current BIP 3 and repository guidance. If it is project-specific, route it to the relevant project rather than manufacturing a Bitcoin-wide standard.

Conclusion

BIP 2 made the proposal workflow more explicit, but it is now a historical process document. Its emphasis on clear specifications, dissent and interoperability remains valuable when read alongside the current replacement.