OTT 1.37 compatibilty with old sessions?

Hey, I've used OTT in version 1.2 (running AAX in Pro Tools Studio on Windows 10) so far and wanted to update to 1.37 for which I have 2 questions:

1: Does the new version change the sound and parameters in any way?

2: Is it compatible with old sessions where I had used 1.2? I read in a previous posing something about "Previous OTT versions were not loading due to an ID mismatch." so I really don't want to lose my settings I had used on OTT in these sessions.

Mike

Also, does OTT have an uninstaller? So I can compare it with version 1.37 or do I have to remove it manually from vst folders and aax folder?

That issue only pertained to the VST3.

You can always move the old .aaxplugin out (e.g. desktop) before installing so you can revert if needed.
There shouldn't be any issue updating.