>>385
https://forums.unrealengine.com/showthread.php?87708-Unreal-Engine-4-10-Preview
4.10 is a smaller release than previous releases.
We focused less on new features, and more on bug fixes.
Our goal is for 4.10 to prove to be a very stable release for everyone to develop on.

4.10 は、新機能の追加よりもバグフィックスを優先した安定板。
後、Visual Studio 2015 等の新しい開発環境に対応。