Hello,
I just want to be sure I understand this clearly.
Is the new version intended for Windows 7 and Windows 8.1 ?
Side note: 2.0.5 works so well I can’t see how you can improve it. Thanks to the developers!
The new 2.1.0 version of Audacity is for all supported platforms (which includes Windows 7, 8 and 8.1).
Thanks for the comment, I glad you find Audacity so useful.
The “headline” new features of Audacity 2.1 are mentioned in the release announcement (http://forum.audacityteam.org/viewtopic.php?f=46&t=84518).
If you install Audacity 2.1.0 using the recommended installer and install “over the top” of 2.0.5, it will update your current version to 2.1.0. If for any reason you find that you prefer to use 2.0.5, the old version is still available (Audacity - Browse Files at SourceForge.net) and you can simply install that over the top of the 2.1.0 version.