As expected, Apple has updated its entire array of first-party apps including Xcode, iMovie, Pages, Numbers, and Keynote, to support the Touch Bar on the new MacBook Pro line, alongside some normal "stability and performance improvements" that come with nearly every update.
version 8.1 is essentially unchanged from the previous version, with the exception of the addition of both Touch Bar implementation, and the ability to use the new user interface feature in apps developed in the environment. The Xcode 8.1 download is 4.47 GB, and is available from the Mac App Store.
In addition to adding the Touch Bar support, Apple's iMovie 10.1.3 can also now delete render files to recover drive space. The update weighs in at 2.05 GB.
Version 6.0.6 of Pages has "stability and performance improvements" and new Touch Bar support. The Pages update occupies 228 MB.
Numbers and Keynote have the same release notes as pages, and weigh in at occupies 170 MB and 470 MB respectively.
GarageBand version 10.1.3 has added the same media control functionality as seen briefly in the videos released after the "hello again" event concluded. Version 10.1.3 takes 949 MB, with in-app purchases requiring more room.
The 2016 MacBook Pro family, announced today, is a major redesign to Apple's flagship notebook, and comes in screen sizes of 13 and 15 inches, with core models starting at $1,799 and shipping in two to three weeks. AppleInsider was at the event, and was able to spend some time with all the latest hardware.