Choose your recording quality: M4A now supports 64, 128, 192 or 256 kbps — your pick is remembered.
See recording capacity at a glance: the Record screen shows how long you can record in the free space at the chosen quality.
Each recording now shows its bitrate on the details screen.
Smarter Convert: only sensible options are offered (no pointless "upscaling"), and MP3 export now lets you pick 128, 192 or 256 kbps.