Project Information Binary Compatibility Rules Binary compatibility rules explained Change in versioning scheme, stronger compatibility since 2.4 Mixed versioning is not allowed The meaning of “may change” API stability annotations and comments Binary Compatibility Checking Toolchain Serialization compatibility across Scala versions Downstream upgrade strategy Patch versions Minor versions Modules marked “May Change” IDE Tips Configure the auto-importer in IntelliJ / Eclipse Immutability using Lombok Adding Lombok to your project Using lombok Migration Guides Migration Guide 2.8.x to 2.9.x Migration Guide 2.7.x to 2.8.x Migration Guide 2.6.x to 2.7.x Migration Guide 2.5.x to 2.6.x Older Migration Guides Rolling Updates and Versions Akka upgrades Change log Issue Tracking Browsing Creating tickets Submitting Pull Requests Licenses Akka License Documentation and test sources license Akka Committer License Agreement Licenses for Dependency Libraries Frequently Asked Questions Akka Project Resources with Explicit Lifecycle Actors Cluster Debugging Other questions? Books and Videos Books Videos Blogs Example projects Quickstart FSM Cluster Distributed Data Cluster Sharding Persistence and CQRS Replicated Event Sourcing Kafka to Cluster Sharding Project Commercial Support Sponsors Akka Discuss Forums Source Code Releases Repository Snapshots Repository