Release notes 16.1

What's new in EGroupware 16.1

It contains many improvements AND lot's of bugfixes over the 14.3 release. To name a few:

Calendar: complete rewrite of user interface for improved functionality, drag&drop, context menu
Mobile: new mobile phone and tablet user interface offering compact display for mobile phones
Desktop: new brighter desktop template, lots of work on usebility and look & feel
Mail/InfoLog: PGP end-to-end encryption using Mailvelope plugin (InfoLog EPL only)
eSync: update to Z-Push 2.3 fixing several Android problems and syncs Outlook 2013/6

Community version English, Deutsch/German, EPL Version English, Deutsch/German
Open Build Service repository via package management of your Linux distribution is our prefered installation method, because of easy of permanent updates
Installation with Git & myrepos via Github
Archives not recommended, because difficult to update!
for RHEL and CentOS 6 or 7 we recommend PHP 7.0 from IUS Community repo, which need to be installed before EGroupware

when updating from previous version eSync (Active Sync) profiles have to be deleted on device and recreated (CalDAV/CardDAV is NOT affected)!
to speed up PHP you should install an opcode cache like OpCache (or APC for PHP 5.4)
EGroupware relies havily on caching: it does this by default in filesystem, to improve speed you should install APC or APCu PHP extension with at least 128MB memory (apc.shm_size * apc.shm_segments >= 128MB)
for updates from versions before 14.3 also refer to release notes of version 14.2