Draft BIP139 wallet metadata format enters the BIP repository
The October merge advanced a proposal for backing up wallet information that private keys alone do not preserve.
Draft BIP139, the Wallet Metadata Backup Format, was merged into the Bitcoin Improvement Proposals repository on October 24, 2026. The merge followed earlier proposal and review, making October a standards-documentation stage rather than the origin of the idea.
A wallet contains more than the secrets needed to authorize transactions. It can also hold metadata that helps its owner understand and use those transactions. Restoring keys does not automatically reconstruct all information maintained by a particular wallet application.
A common backup format addresses that portability problem by giving implementations a shared way to describe metadata. The repository merge documented the proposal within Bitcoin's public standards process.
Inclusion in the BIP repository did not activate a consensus rule or establish that every wallet supported the format. It made a draft available for implementation and further evaluation while preserving its distinction from network-wide adoption.