Cerb (8.2.11) is a maintenance update released on February 28, 2018. It includes 3 minor features and fixes from community feedback covering the 8.2 update. You can follow these instructions to upgrade.
[Platform/Sessions] Fixed an issue that prevented sessions from workers with IPv6 addresses when MySQL was in strict mode. Thanks to Thomas Gross for the report!
[Security/Attachments] Fixed a possible self-XSS issue when uploading attachments. [#604]
framework.config.phpto control embedding in IFRAMEs and mitigate clickjacking. The options are
none(no headers/protection) and
self(only allow requests from within Cerb). The default is
self. You can use
noneif you intend to implement the headers yourself (e.g. from the webserver). [#605]