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. Fixes: Improved nonce protection for XProfile group & field actions. Groups: fix group description truncation length. Profiles: fix avatar quality when requesting large size. See blog post: https://buddypress.org/2017/08/buddypress-2-9-1-security-release/
