Hi all,

after one year of intensive development we have just released Z-Push 2.3.0 final (tag 2.3.0, commit cc7ee228a5b1421268db37a0e1f7f9725ac1ffdf).

There are many new features in Z-Push 2.3.0, like packages and repositories for 14 distributions, 
MySQL and memcache support for states, improved Outlook compatibility (KOE) and especially: a vast speed improvement!
We would like to thank a lot our community contributors Etienne, Francisco, Nicolas, Ralf and Vincent who helped to make this possible!

*Upgrade procedure*
You can directly upgrade from any Z-Push 2.2.x. 
After the upgrade, "z-push-admin -a fixstates" needs to be executed once!
Else the Ping request will not block and devices will sync continuously.
After the fixstates all mobiles will work normally and Ping will be working as expected.

*This version introduces new features that are partially not downgradable.*
A limited downgrade is possible.
In order to use all new features (especially for Outlook users) existing profiles must be 
completely re-synchronized, e.g. via "z-push-admin -a resync -u username".
After the resync the devices use a new type of folderids (short ids) which are not 
compatible with Z-Push 2.2.x anymore.
Re-synchronized profiles or newly connected devices (after the upgrade to 2.3.0) will not 
work properly when downgrading to Z-Push 2.2.x. These devices will be re-synchronized again automatically.
There is no need to perform the resync immediately. Profiles created with 2.2.x will 
work normally with 2.3.0, but not all new features will be available.
Using "z-push-admin -a lastsync" you are able to see who has new/old profiles.

*Blackberry 10 users*: our tests have shown that a server side resync as described here is not 
enough for BB10 devices to work reliably. You need to remove and re-create the profile on these devices. 
BB seems to cache old folderids which causes sync inconsistencies. 
Ideally: 
	(1) remove profile from BB 
	(2) remove state on server 
	(3) create the profile on the BB again. 
	
Existing Blackberry profiles will work normally with 2.3.0, but at some point they should be re-synchronized & re-created.
We have seen a similar behavior with *Outlook 2013+* when upgrading. You will need to recreate your profile in Outlook as well.

*We strongly advise you to install the from the packages and don't use the tarball (which we also publish)!*
More information about the installation from repositories and packages is available here: https://wiki.z-hub.io/display/ZP/Installation

*New features since Z-Push 2.2.x*
https://jira.z-hub.io/browse/ZP-230 - SQL state machine
https://jira.z-hub.io/browse/ZP-556 - Share folders read-only
https://jira.z-hub.io/browse/ZP-77  - Systemwide policy configuration
https://jira.z-hub.io/browse/ZP-402 - Implement Free/Busy support
https://jira.z-hub.io/browse/ZP-622 - Ping should notify on hierarchy changes
https://jira.z-hub.io/browse/ZP-767 - Open Shared Folders API (Webservice)
https://jira.z-hub.io/browse/ZP-696 - Z-Push packages
https://jira.z-hub.io/browse/ZP-900 - Kopano Outlook Extension compatibility
https://jira.z-hub.io/browse/ZP-560 - Logging to syslog
https://jira.z-hub.io/browse/ZP-665 - New backend - LDAP
https://jira.z-hub.io/browse/ZP-684 - New backend - CardDAV
https://jira.z-hub.io/browse/ZP-685 - New backend - CalDAV
https://jira.z-hub.io/browse/ZP-739 - Heartbeat interval range lifetime
https://jira.z-hub.io/browse/ZP-837 - Have a serverside timeout depending on device type
https://jira.z-hub.io/browse/ZP-849 - Implement shorter folder ids (was: integer)
https://jira.z-hub.io/browse/ZP-691 - Remove legacy stuff
https://jira.z-hub.io/browse/ZP-698 - IPC provider logic
https://jira.z-hub.io/browse/ZP-828 - IMAP - contributions
https://jira.z-hub.io/browse/ZP-797 - rework WBXML handling
https://jira.z-hub.io/browse/ZP-705 - Implement support for STREAMER_TYPE_STREAM_ASPLAIN
https://jira.z-hub.io/browse/ZP-969 - Add webservices to list the hierarchy of another user.

*Most important Improvements since Z-Push 2.2.x*
https://jira.z-hub.io/browse/ZP-594 - Failsave for endless loops
https://jira.z-hub.io/browse/ZP-648 - Implement ResolveRecipients for FreeBusy
https://jira.z-hub.io/browse/ZP-666 - z_RFC882 - Update version
https://jira.z-hub.io/browse/ZP-668 - mimeDecode.php - Update version and changes
https://jira.z-hub.io/browse/ZP-681 - Remove closing PHP tags
https://jira.z-hub.io/browse/ZP-682 - Composer - Auto-Include
https://jira.z-hub.io/browse/ZP-700 - Catch PHP fatals and log them into z-push-error.log
https://jira.z-hub.io/browse/ZP-760 - Always log generic exception as fatal error
https://jira.z-hub.io/browse/ZP-765 - ZLog/Syslog refactor
https://jira.z-hub.io/browse/ZP-818 - Send no answer collection for unchanged folders in Sync
https://jira.z-hub.io/browse/ZP-832 - Detect folder changes faster
https://jira.z-hub.io/browse/ZP-834 - Remove SINK_FORCERECHECK
https://jira.z-hub.io/browse/ZP-835 - IStateMachine::CleanStates() should get a parameter to delete the exact counter file (not everything smaller)
https://jira.z-hub.io/browse/ZP-838 - Set MAX_ITEMS to 512 to accelerate Outlook sync
https://jira.z-hub.io/browse/ZP-839 - Z-Push-top writes over several lines when Outlook synchronizes
https://jira.z-hub.io/browse/ZP-853 - Backend could not support FolderStats for single folders
https://jira.z-hub.io/browse/ZP-865 - Don't enter conflict detection if more than 100 items are queued
https://jira.z-hub.io/browse/ZP-886 - IImportChanges->ImportMessageDeletion() should support soft deletions
https://jira.z-hub.io/browse/ZP-899 - Evaluate and compare should work on all SyncObjects
https://jira.z-hub.io/browse/ZP-915 - KOE: multi-tenancy compatibility of gab-sync script
https://jira.z-hub.io/browse/ZP-932 - z-push-admin should list old (longid) profiles
https://jira.z-hub.io/browse/ZP-933 - z-push-admin could expose functionality to resync the KOE GAB for a single user
https://jira.z-hub.io/browse/ZP-939 - z-push-admin can show foldernames in ongoing sync and identify the KOE GAB folder
https://jira.z-hub.io/browse/ZP-945 - Log time and memory consumption also in INFO log level
https://jira.z-hub.io/browse/ZP-946 - Add a check for php versions
https://jira.z-hub.io/browse/ZP-950 - Improve GIT version logging
https://jira.z-hub.io/browse/ZP-953 - improved human readability in the notification mail when reverting a changes in a read-only folder
https://jira.z-hub.io/browse/ZP-958 - ability to suppress e,.g. E_NOTICE and E_STRICT notices/warnings, see also: https://wiki.z-hub.io/display/ZP/Hidden+configuration+parameters
https://jira.z-hub.io/browse/ZP-964 - Expose Z-Push version via additional header to authenticated users.
https://jira.z-hub.io/browse/ZP-965 - possibility to extend the SqlStateMachine by an own class
https://jira.z-hub.io/browse/ZP-970 - Allow call printwbxml from arbitrary directories and use externals files as in usage - contributed by Ralf Becker!
https://jira.z-hub.io/browse/ZP-974 - KOE: Add capability flag for shared folders
https://jira.z-hub.io/browse/ZP-977 - Closing streams after exporting
https://jira.z-hub.io/browse/ZP-982 - Include buildfiles in git repository
https://jira.z-hub.io/browse/ZP-986 - Possibility to disable TopCollector for big systems
https://jira.z-hub.io/browse/ZP-993 - Allow to disable Outlook access from LDAP/ADS

*Bug fixes*
https://jira.z-hub.io/browse/ZP-711 - zpush_fatal_handler reports PHP Notice & Warning as FATAL in z-push(-error).log
https://jira.z-hub.io/browse/ZP-802 - Fix default Settings() response in abstract Backend class
https://jira.z-hub.io/browse/ZP-810 - Missing configuration in BackendCombined for BackendLDAP
https://jira.z-hub.io/browse/ZP-825 - Composer: replacenullchar filter can not be found
https://jira.z-hub.io/browse/ZP-829 - CardDAV - fix phone number mappings
https://jira.z-hub.io/browse/ZP-841 - SyncKey "0" needs to invalidate FolderStat
https://jira.z-hub.io/browse/ZP-843 - MAPI stream warnings
https://jira.z-hub.io/browse/ZP-848 - FolderStat should not be considered if not using latest SyncKey
https://jira.z-hub.io/browse/ZP-851 - FolderStat needs expiration time
https://jira.z-hub.io/browse/ZP-855 - Searched and found message can not be deleted (iOS)
https://jira.z-hub.io/browse/ZP-856 - Code still contains while(1) in command processors
https://jira.z-hub.io/browse/ZP-864 - User with umlauts in user name is not able to login in Outlook
https://jira.z-hub.io/browse/ZP-866 - After exporting a change states used for empty request may be wrong
https://jira.z-hub.io/browse/ZP-871 - Integer folderids may falsly trigger hierarchy sync in Ping
https://jira.z-hub.io/browse/ZP-872 - Ping doesn't catch all notifications
https://jira.z-hub.io/browse/ZP-874 - WBXMLencoder processMultipart() should warn if stream has "no size"
https://jira.z-hub.io/browse/ZP-876 - Arrays in constants is not supported in php 5.4
https://jira.z-hub.io/browse/ZP-877 - Sync period change not honoured
https://jira.z-hub.io/browse/ZP-879 - Fix for ZP-779 doesn't work when working on shared folders
https://jira.z-hub.io/browse/ZP-882 - Loading policies.ini doesn't work from CLI
https://jira.z-hub.io/browse/ZP-884 - Fix GetHierarchy() to provide otherwise streamed properties to MAPIProvider->GetFolder()
https://jira.z-hub.io/browse/ZP-887 - Z-Push: warning when looking up free/busy for a new user
https://jira.z-hub.io/browse/ZP-895 - Integer ids can trigger folder name switches by Outlook
https://jira.z-hub.io/browse/ZP-896 - Warnings in MAPIProvider
https://jira.z-hub.io/browse/ZP-904 - Autodiscover is not syslog compatible
https://jira.z-hub.io/browse/ZP-905 - KopanoChangesWrapper throws fatal with php lower than 5.5
https://jira.z-hub.io/browse/ZP-918 - KOE: GAB folder being added when it doesn't exist
https://jira.z-hub.io/browse/ZP-920 - Setting of reply flag is broken
https://jira.z-hub.io/browse/ZP-921 - Move causes duplicates in destination folder
https://jira.z-hub.io/browse/ZP-922 - Subfolders don't show up in the synchronized folder list
https://jira.z-hub.io/browse/ZP-923 - Ping fails to load state for zero sync keys
https://jira.z-hub.io/browse/ZP-924 - KOE: gab-sync calls wrong mapi error function
https://jira.z-hub.io/browse/ZP-927 - When setting up additionalLogUsers the last stats line is not logged
https://jira.z-hub.io/browse/ZP-930 - z-push-top doesn't work in another directory with memcache enabled
https://jira.z-hub.io/browse/ZP-934 - Warnings while synchronizing
https://jira.z-hub.io/browse/ZP-935 - Devicedata is deleted when requesting folder resync
https://jira.z-hub.io/browse/ZP-936 - MAPIStreamWrapper loses data when truncating
https://jira.z-hub.io/browse/ZP-940 - Implement Set/GetMoveStates in combined im/exporters
https://jira.z-hub.io/browse/ZP-941 - On "remove" via z-push-admin the devicedata is not deleted when using sql states
https://jira.z-hub.io/browse/ZP-947 - On exporter failure Outlook does not understand folder status code
https://jira.z-hub.io/browse/ZP-951 - Error messages when synchronizing with BB
https://jira.z-hub.io/browse/ZP-952 - Warnings when getting hierarchy notifications
https://jira.z-hub.io/browse/ZP-955 - fixed warnings when using a diff-backend based backend
https://jira.z-hub.io/browse/ZP-956 - Warnings about unmet condition when transforming folderid in backendid
https://jira.z-hub.io/browse/ZP-962 - Problem with autoloader searching for non-existing backend - thanks to Vincent aka liverpoolfcfan for reporting!
https://jira.z-hub.io/browse/ZP-966 - KOE: ZCP 7.1 compatibility of the gab-sync script
https://jira.z-hub.io/browse/ZP-971 - Don't fail when source message id is not found on move operations to the waste basket.
https://jira.z-hub.io/browse/ZP-976 - In case a state is not found z-push-admin list is useless
https://jira.z-hub.io/browse/ZP-980 - Exception of an all day recurrence is not all day
https://jira.z-hub.io/browse/ZP-981 - Error deleting an all-day occurrence on a mobile device
https://jira.z-hub.io/browse/ZP-984 - Unable to list folders of a another user if not an admin user
https://jira.z-hub.io/browse/ZP-990 - KOE: Race-condition when connecting two Outlooks with the same user simultaneously
https://jira.z-hub.io/browse/ZP-994 - On missing permissions WebserviceInfo->ListUserFolders() returns own folders
https://jira.z-hub.io/browse/ZP-1000 - Not possible to accept meeting request on iPhone
https://jira.z-hub.io/browse/ZP-1001 - Requestid in MeetingResponse is not split
https://jira.z-hub.io/browse/ZP-1003 - KOE: sync-gab is not always able to open store when using system

*Others*
https://jira.z-hub.io/browse/ZP-206 - Default log rotation for z-push packages
https://jira.z-hub.io/browse/ZP-649 - Fix ResolveRecipients for Zarafa
https://jira.z-hub.io/browse/ZP-650 - Implement ResolveRecipients for IMAP
https://jira.z-hub.io/browse/ZP-674 - Remove the include of mimeDecode.php in Zarafa backend
https://jira.z-hub.io/browse/ZP-706 - Update SyncObjects
https://jira.z-hub.io/browse/ZP-707 - Implement plain streams for Zarafa
https://jira.z-hub.io/browse/ZP-708 - Implement plain streams for IMAP
https://jira.z-hub.io/browse/ZP-709 - Implement plain streams for Zimbra
https://jira.z-hub.io/browse/ZP-710 - Implement plain streams for Egroupware
https://jira.z-hub.io/browse/ZP-714 - Implement Free/Busy lookup for Zarafa backend
https://jira.z-hub.io/browse/ZP-716 - [Zarafa] Implement options processing for ResolveRecipients
https://jira.z-hub.io/browse/ZP-718 - Re-factor resolving recipients in gal and contacts
https://jira.z-hub.io/browse/ZP-737 - ResolveRecipients Availability and Picture do not honour AS version
https://jira.z-hub.io/browse/ZP-741 - Loopdetection does not need the folder type
https://jira.z-hub.io/browse/ZP-768 - Additional folder data in device + Set/Get/List/Remove APIs
https://jira.z-hub.io/browse/ZP-769 - Integration into FolderSync + FolderChange operations
https://jira.z-hub.io/browse/ZP-770 - Expose API via Webservice
https://jira.z-hub.io/browse/ZP-771 - Changes in Additional User Folder API should trigger a FolderSync while in Ping
https://jira.z-hub.io/browse/ZP-772 - Change default value of USE_FULLEMAIL_FOR_LOGIN
https://jira.z-hub.io/browse/ZP-774 - Webservice documentation
https://jira.z-hub.io/browse/ZP-777 - Catch & Filter hierarchy events
https://jira.z-hub.io/browse/ZP-778 - Verify hierarchy notifications
https://jira.z-hub.io/browse/ZP-779 - Outlook: message is suddenly unread after moving it to another folder
https://jira.z-hub.io/browse/ZP-816 - z-push-admin and z-push-top missing log dependency
https://jira.z-hub.io/browse/ZP-821 - Integrate autoloading for backends
https://jira.z-hub.io/browse/ZP-846 - z-push-admin fix-states need to fix missing folderdata of hierarchy state
https://jira.z-hub.io/browse/ZP-847 - Remove stream seek() call from WBXMLencoder
https://jira.z-hub.io/browse/ZP-852 - Show user's policy in z-push-admin
https://jira.z-hub.io/browse/ZP-858 - Ping hierarchy checks old states
https://jira.z-hub.io/browse/ZP-881 - Change ZCP server location for listfolders
https://jira.z-hub.io/browse/ZP-891 - Remove extra log for 2.3.0
https://jira.z-hub.io/browse/ZP-897 - Rename ZCP backend
https://jira.z-hub.io/browse/ZP-901 - ReplyBack of read flag should be done right
https://jira.z-hub.io/browse/ZP-902 - ZPushAdmin->AdditionalFolderList() should list types and readonly flag
https://jira.z-hub.io/browse/ZP-914 - KOE: Hide Z-Push-KOE-GAB folder automatically on creation
https://jira.z-hub.io/browse/ZP-917 - Remove default IPC_PROVIDER
https://jira.z-hub.io/browse/ZP-919 - KOE: GAB appears wrong in z-push-top PING
https://jira.z-hub.io/browse/ZP-928 - Put apache configuration files in GIT
https://jira.z-hub.io/browse/ZP-929 - KOE: make syncgab script executable directly
https://jira.z-hub.io/browse/ZP-937 - Memcache logs blockmutex warnings too often
https://jira.z-hub.io/browse/ZP-942 - Update INSTALL to reflect changes of 2.3
https://jira.z-hub.io/browse/ZP-943 - Make shared memory default IPC
https://jira.z-hub.io/browse/ZP-944 - Update z-push-admin help page
https://jira.z-hub.io/browse/ZP-948 - X-Forwarded-for can now be logged to DEBUG level
https://jira.z-hub.io/browse/ZP-978 - Load policies from default section policy file
https://jira.z-hub.io/browse/ZP-987 - Memcache IPC too slow
https://jira.z-hub.io/browse/ZP-989 - Remove 'readonly' flag from configuration and webservice and show permissions in AdditionalFolderList()
https://jira.z-hub.io/browse/ZP-995 - Warnings in WebserviceInfo->ListUserFolders()
https://jira.z-hub.io/browse/ZP-999 - GMail example configuration of IMAP backend has a typo

An overview of the tickets of 2.3.0 in Jira is available here: https://jira.z-hub.io/projects/ZP/versions/10128
Code changes since 2.2.10 are available here: https://stash.z-hub.io/projects/ZP/repos/z-push/compare/diff?targetBranch=refs%2Ftags%2F2.2.10&sourceBranch=refs%2Ftags%2F2.3.0

Install Z-Push 2.3.0 from repositories (recommended): https://wiki.z-hub.io/display/ZP/Installation
The tarball is available here (not recommended): http://download.z-push.org/final/2.3/z-push-2.3.0.tar.gz

Please share your experiences and give feedback!

Greetings,
Sebastian
Z-Push dev team