Version 2.9.1 is a BuddyPress security and maintenance release.
For Version 2.9.1, the database version (bp_db_version in wp_options) was r11105, and the Trac revision was r11678.
- Improved nonce protection for XProfile group & field actions.
- Groups: fix group description truncation length.
- Profiles: fix avatar quality when requesting large size.