Circus Ponies has released, a major update to the note-taking and text-collection utility with a newly streamlined user interface, and support for 64-bit processors and Retina displays. The release improves diagram building with shortcuts like Option-dragging from a shape to create a new line, and it brings back the Clip and Annotate panel — great for editing selections before clipping them to a page or adding a quick note. NoteBook 4 adds support for full-screen viewing and gestures for changing the zoom level and scrolling through tabs. It also uses the Mac’s AVAudioRecorder to record voice annotation audio, which makes it compatible with voice recordings made on NoteBook 4 for iPad (note, however, that the  version of NoteBook 4 does not support voice annotation). Speaking of , Circus Ponies warns that it is very similar to the previous 3.1 release, and promises a future update with iOS 7 support and an interface overhaul. Be sure to read the  of over 100 changes and improvements delivered in NoteBook 4.
Shortly after the unveiling of NoteBook 4.0, Circus Ponies released version 4.0.1 with numerous fixes, including for a NoteBook window toolbar display glitch on non-English versions. NoteBook 4 is priced at $49.95 from the Circus Ponies Web site ($59.99 at the Mac App Store), and you can try it free for 30 days. If you purchased a NoteBook 3 license on or after 6 May 2013, you are eligible for a free upgrade; purchases made prior to that date can upgrade to NoteBook 4 for $19.95 directly from the Circus Ponies Web site. ($49.99 new, free update, 18.3 MB, 10.6.8+)