Zwift released a minor update yesterday, with the most noticeable change for many users being the support of wider screen layouts. HUD elements are now pushed to the edges of the screen regardless of screen width, making for a much roomier, less-cluttered feel on widescreen layouts.
Mostly this release includes lots of small bug fixes, including on that was causing 2011 MacBook Air machines would run at drastically reduced performance. Jon Mayfield wrote in the release note:
…although most of the team at Zwift HQ is hard at work finishing 2 large features we’ve still managed to fix a few things that had been bothering some users. Rather than wait for the larger release, we wanted to get them out now rather than later.