This release includes bug fixes and enhancements to the core library, but the highlights are in our collections. There's a new infrastructure block for running flows in containers on Azure, a new key-value store collection, and the ECS infrastructure block has been designated as ready for production.
See the release notes for details.
By the way, if you haven't checked out 2.6 yet, you should now! We launched first-class configuration of results in 2.6.0 and every release since includes additional improvements to result handling.