The Audacity Team have announced the release of Audacity v1.3.4 (beta), which includes several new features and user interface improvements, such as:

• New Welcome Screen with introduction to Audacity.
• New 'Mix and Render to New Track' command.
• Support for VAMP audio analysis plug-ins.
• More keyboard shortcuts and navigation.
• Reworked solo/mute handling.
• New preference: Select all audio in project, if none selected (on by default).
• New preference: Beep on completion of longer activities.
• Envelopes: Many fixes when copying, pasting, or repeating.
• Many translation updates.
• Metadata editor added for OGG, FLAC and WAV/AIFF exports. Metadata import improved.
• Muted tracks are no longer audible in the exported mix.
• Improvements to latency correction.

Note that this release is for Windows and Linux/Unix only. The latest Audacity beta for Mac OS is version 1.3.3.