@andrzej.wojcik what's the estimate time of the adjustments? Would those be backward-compabitle?

I do not have the estimates as I do not actively track changes in MongoDB. Looking at https://www.mongodb.com/docs/drivers/java/sync/current/compatibility/ the support could/should be backward compatible.

I've updated MongoDB driver but it requires add uuidrepresentation parameter to work. For old installations it should be java_legacy (if I'm correct), while for new installations it should be set to standard.

There was a bug in -dist module responsible for packaging. Due to changed MongoDB client maven package id, it was not included in the final Tigase XMPP Server distribution packages. Subsequent runs of TTS-NG still failed as MongoDB driver was missing, even though it was included.

@wojtek Any idea why this could happen?

After some digging in:

DependencyManager.createBeanConfig(): Cannot create bean config 'instance', type=tigase.mongodb.MongoDataSource. Bean requires unknown class com/mongodb/MongoException

Currently mongodb library uses additional dependencies and those transitive dependencies have to be included in -dist package as well. Above class is in org.mongodb:mongodb-driver-core

Adding those should fix the issue.