Release Notes 2.4.0

Less of Audacity is properly accessible to visually impaired users than we would like. Currently the best supported platform for accessibility is Windows. We lost a lot of custom accessibility programming when we had to move to a more recent version of the wxWidgets library.
Windows
- Audacity 2.4.0 requires the CPU to support the SSE2 instruction set which should be available on any Intel hardware produced after 2001 and any AMD hardware produced after 2003.
- To check what SSE levels your CPU supports, you can install CPU-Z.
- If your hardware only supports SSE, you may download Audacity 2.0.6 see the Legacy Windows page on the Audacity Website.
- 2.4.0 does not support Windows XP.
- You may try 2.2.2 on XP, but it is unsupported.
macOS / Mac OS X
- Audacity 2.4.0 is for Intel Macs running OS X 10.7 and later and macOS including Catalina.
- There are legacy versions for older OS X at http://audacityteam.org/download/legacy-mac/.
Linux
- Linux support is tested on Ubuntu Linux. Use the CMake build. The Automake build is no longer reliable.
- Audacity may compile on Gentoo, Debian, Mint.
- Audacity does not currently compile on SuSE Linux.