Backwards compatibility of Audacity 3.3

Audacity Help Forum Windows
1

Currently running Audacity 3.0.4 under Windows 7 Pro. If I upgrade to 3.3, will my existing projects (AUP3 files) done in 3.0.4 open/run in 3.3? Any other changes that would be needed?

I also want to add an Autotune plug-in for use with vocals; do I need to upgrade to 3.3 to do that? Any of the available plug-ins fully compatible with Audacity?

2

Projects from 3.0.0 and later can be opened in Audacity 3.3.2. And project from 2.4.2 and earlier can be imported.

Windows 7 is obsolete and is no longer supported by Microsoft. According to this page, 3.1.0 is the latest version that may be able to run on Windows 7: Windows | Audacity ®

If you try it, please report back what you find.