Probably a documentation typo, but the docs:
Refer to a General setting: "Keep local history for"
But I dont see this option in the IDE...
The reason I am looking for it, is that I seem to be getting issues where the local history window comes up blank - not even the current version.
I am running on a Mac book air (SSD based), and generally use the sleep/close lid option - so perhaps RubyMine is not quite handling that ok.
Restart Rubymine seems to fix things - although I think it then has wiped the history and so I am back to just the latest.
Running 3.0 - downloading 3.0.1 as I type.