https://support.audacityteam.org/additional-resources/changelog/audacity-3.7.4
https://support.audacityteam.org/additional-resources/changelog/audacity-3.7.5
Now v3.7.6. Version 4.0.0 still in Alpha.
DOWNLOAD & CHANGELOG
Now v3.7.7.
Now v3.7.8 and v4.0.0 Beta 2. Finally v4.0.0 out of alpha.