Gitblit uses Servlet 3.0 and thus drops support for Tomcat 6. Run on Tomcat 6 at your own risk.
With the update to Lucene 5.5.2 reindexing of the tickets is necessary. This is done automatically during the first server start after an upgrade. Depending on the amount of tickets you have, this could take a little while. The old index is kept, so that a downgrade is still possible without losing information. The old index can be deleted, when a downgrade is no longer required.
The interface for the ITicketService changed. If you have your own derived implementation, rename `start` to `onStart`. (see commit 63dbdfda
To support Java 9+, Gitblit can no longer load JARs from the 'ext' folder by itself. In order to include the folder, it needs to be added to the classpath explicitly by changing the command line. Check the new start scripts to see the new required command line.
The 1.9 minor version will be the last to support Java 7. From 1.10 on Gitblit will require Java 8.
When the `realm.ldap.bindpattern` property is set, GitBlit will only bind as the user to LDAP, not to a manager account or anonymously.
Older password storage mechanisms are deprecated, PBKDF2 is the new default. When you switch from plaintext to a hashed scheme, or from the older hashed to the new PBKDF2 scheme, the stored password of a user will be rehashed with the more secure mechanism when the user logs in.