Bitcoin Core developer Gloria Zhao has resigned from her position as a maintainer and revoked her cryptographic signing key. She has long focused on areas such as mempool verification, transaction forwarding, and fee estimation. Her resignation does not affect Bitcoin's consensus rules, network security, or transaction processing. Reports indicate that maintainers resigning and revoking keys is common practice in open-source projects. The Bitcoin Core maintainers are a small, trusted group of developers responsible for code review, update approval, and digitally signing official versions using keys. Zhao has contributed to Bitcoin Core development for over six years, but her work has not involved changing Bitcoin's underlying protocol rules. Zhao did not respond to requests for clarification regarding the specific reasons for her departure. (Cryptopolitan)