If I test my Level by hitting “Play” the Undo History resets. If there a way to retain the undos from brfore the play button was pressed?
I’m afraid not. It is something we’ve put a lot of thought in to and have some ideas for improving how the undo system works in the future, but for the time being we can’t reliably maintain the undo buffer through a play session.
still the same.any update on retaining the undos
Just last week the change was submitted to allow Undo after Play. Assuming no critical issues are found with it, it will be part of the 4.5 build.
Version 4.5 is about to be rolled out; has this been implimented?
Version 4.10 is rolled out and version 4.11 is soon to be, and this is still not implemented. 
Are there any news on Undo after play in editor? I get the message can`t undo after GC streaming level.