Twelfth round of improvements in 2.x series The main visible feature is the revamp of the whole web interface - with the upgrade of the underlying Bootstrap library came a lot of changes. In spite of some more invasive changes (selection lists for example), we tried hard to keep the overall logic and feel the same. Also, underlying active (javascript) client parts have been reworked for better responsiveness and lower latency. The main visible feature of this release is the redesign of the event view. User now shouldn't need to go into the JSON view, as most of the popular fields and event parts are shown directly. This includes structured display of attachments and their various types of data types, parsing and displaying links in References fields, Service related fields and others. Event view now also supports context search and third party services data annotations for hostnames. Reporting filters gained enhanced possibility of testing before applying and notification of concerned admins about related filter changes, together with a usual bunch of bugfixes (timezone handling, changelog handling, visibility of various fields). Various modules acquired a lot of bugfixes. Event search got fixes for IPv6 input, limits, report related data, wily whitespace, negative queries and others. Also, incomplete data (as in historical and partially removed) are clearly marked. Timeline is now correctly reflected in "My queries" and query quotes. Uncategorized data, time marks, some dashboard issues and some specific problematic use cases have been fixed in graph usage. Also group and user management received some love in target mail resolution, permissions, group admin assignment and fixing some searching issues. On the backend part, Negistry-like JSON API has been implemented for integration with tools already using it. Also mailing API is now unified across various modules and libraries. Please, visit the issue tracker for the lists of related issues: https://homeproj.cesnet.cz/versions/148 https://homeproj.cesnet.cz/versions/149