Apple today released Keynote 5.1.1 for OS X, a minor update improving handling of large documents under OS X Lion and bringing several other general improvements.
This update addresses issues when working with large Keynote presentations on OS X Lion. It also includes improvements in stability and accessibility for Keynote.
This update is recommended for users of Keynote 5.1.
As Apple details in a support document, users who installed Keynote as boxed software or a download from apple.com should update via Software Update or the direct download page. Users who purchased Keynote from the Mac App Store should update through that mechanism.