Apple has released a new update to MainStage, their virtual instrument and effect software for enhancing live performances. The update is mostly centered around bug fixes, with the release notes indicating that it addresses 14 different issues.
Issues include the app unexpectedly quitting under the latest version of Lion, or when loading certain concert projects, as well as issues with audio output, using certain hardware, or loading certain instruments within the app.
The update weights in at a fairly hefty 302MB, and is available immediately from the Mac App Store. The update is free for existing owners, and MainStage is available for $29.99 (Mac App Store link).