Mantis 2.27.1
29 September 2025
Mantis version 2.27.1 is now available.
Upgrading to Mantis 2.27.1
Mantis 2.27.1 can be upgraded to (or installed) using any of Installatron's products. Use Installatron's optional Automatic Update feature to automatically apply Mantis updates as new versions are released, or use Installatron's Clone feature to duplicate an existing Mantis install to test the 2.27.1 upgrade prior to applying it live. Get started managing your Mantis installations with Installatron
What's New in Mantis 2.27.1
Maintenance release, fixing a few regressions introduced with 2.27.0 as well as many other issues including improved PHP 8 compatibility.
Bug Fixes and Changes
- 0027960: [tools] Continuous Integration: moving off TravisCI (dregad)
- 0034845: [email] Update PHPMailer to 6.9.3 (dregad)
- 0034783: [installation] Checking URL to installation is failing (dregad)
- 0035198: [performance] Caching language loading can be more efficient. (dregad)
- 0035011: [installation] tokenizer php module is required, but not checked for and not documented as such (dregad)
- 0034959: [api soap] Due date is deleted when the caller have no permission to modify it (community)
- 0034917: [administration] Admin check for Graphviz tools broken on Windows (atrol)
- 0034916: [db postgresql] PostgreSQL versions 16 and 17 are not defined in Admin Checks (dregad)
- 0034887: [db mysql] MySQL version 9.0 and 9.1 are not defined in Admin Checks (dregad)
- 0034854: [administration] Error when creating global profiles (atrol)
- 0034813: [bugtracker] Schema: Release marker missing (atrol)
- 0034828: [other] HTTP response code not set on errors when using FastCGI (dregad)
- 0034826: [preferences] Error when clearing default profile (atrol)
- 0034503: [administration] t_admin_dir_is_accessible check is wrong (dregad)
- 0035255: [plug-ins] Unknown named parameter $bug_id (dregad)
- 0035431: [installation] When installing on mysql with log queries, SET NAMES=UTF8 is not logged (dregad)
- 0035262: [localization] 'en-gb' language is not defined warning for Gravatar plugin (dregad)
- 0006264: [administration] In manage_proj_edit_page.php, the "Project" popup at the top of the window is ignored (community)
- 0035307: [documentation] Improve documentation for $g_phpMailer_method (community)
- 0035312: [rss] RSS Builder PHP deprecation warnings on PHP 8.1+ (community)
- 0035314: [printing] Printed reports on the page in "doc" format includes javascript from the server (community)
- 0035322: [html] Incorrect absolute URL in the tab menu (community)
- 0035403: [html] The avatar.png is a big JPEG actually (community)
- 0035248: [db postgresql] Postgresql Error - db_stats.php - relation "sql_parts" does not exist (dregad)
- 0035257: [db schema] Update ADOdb to 5.22.8 (dregad)
- 0035233: [api rest] REST API fail external authentication (community)
- 0035209: [plug-ins] An invalid plugin can cause errors in other plugins' files (dregad)
- 0035200: [ui] Plug-in listing error during the language test process. (dregad)
- 0035199: [performance] Improvement of the file_get_mime_type() function (community)
- 0035432: [bugtracker] Issue's last updated date is not modified when a note is deleted (dregad)
- 0035064: [administration] Constant error 500 after deleting user option on adm_config_report.php page. (dregad)
- 0035039: [reports] The GraphViz tool is almost impossible to customise for Windows (dregad)
- 0035428: [code cleanup] Calling gpc_get_int() with null default throws deprecation warning on PHP 8.1 (dregad)
- 0035471: [ui] Incorrect styling of Plugin Filter Fields (dregad)
- 0035493: [ui] Inactive buttons of project navigation bar are not clickable (community)
- 0035302: [authentication] Deprecation warning in Securimage captcha with PHP 8.2 (dregad)
- 0035291: [filters] Filters including date custom fields don't work on PHP 8.0 (dregad)
- 0035180: [html] The MantisBT web interface must pass HTML validation (community)
- 0035179: [filters] Could not use plugins filters with "Permalink" (dregad)
- 0023593: [ui] Username does not fit in navbar user menu (community)