I usually install the new releases right away. Sometimes a new release is
wildly unstable, and usually it later ends up with the tag "Not recommended"
on the EAP page.
Downgrading is only halfway possible. The installer installs the earlier
version, but the about box shows the later (buggy) version and the bugs are
still there. It's like the files are not actually overwritten.
When will it be possible to uninstall R# or downgrade to an earlier