Audacity 3.0 has been released with a new AUP3 file format that makes it harder for projects to become damaged and to increase performance while editing audio. The new format is an SQLite 3 database that Audacity says should make editing audio a little faster. In addition to the new project file format, Audacity adds an improved ‘Noise Gate’ effect, a new ‘Label Sounds’ analyzer, and fixes over 160 bugs that have been plaguing the software for some time.
Source: https://www.bleepingcomputer.com/news/software/audacity-30-released-with-new-aup3-file-format-speed-improvements/