BIP

A BIP (Bitcoin Improvement Proposal) is the standardized process for proposing, discussing, and implementing changes to the Bitcoin protocol. Introduced in 2011, BIPs give developers, miners, and users a transparent way to collaborate on protocol upgrades.

BIP types

• Standards Track — changes to the Bitcoin network protocol, transaction format, or consensus rules (most impactful)
• Informational — design guidelines or general information, not requiring consensus
• Process — changes to Bitcoin development processes, not the protocol itself

BIP lifecycle

1. Draft — author submits a proposal with motivation, specification, and rationale
2. Proposed — community review and discussion
3. Final / Rejected / Withdrawn — outcome of the review

Notable BIPs

BIP	Name	Impact
BIP-9	Version bits	Soft fork activation mechanism
BIP-34	Block v2	Block height in coinbase
BIP-141	SegWit	Segregated Witness — fixed transaction malleability, increased block capacity
BIP-340–342	Taproot	Schnorr signatures, improved privacy and smart contract efficiency
BIP-39	Mnemonic seed phrases	12/24-word wallet backup standard

BIPs and mining

Miners play a key role in BIP activation. For soft forks, miners signal readiness by setting bits in the block version field. When a threshold (e.g., 90–95% of blocks over a 2-week window) signals support, the upgrade activates. This gives miners direct influence over protocol changes.

See also

• Bitcoin
• Block Reward
• Blockchain