Apple this morning has released OS X 10.10 Yosemite Developer Preview 5.
The new update brings various performance improvements and bug fixes. The previous Developer Preview brought some minor user-interface enhancements and significant speed improvements. Apple also released iOS 8 beta 5.
Developers have been toying with the beta of OS X Yosemite since Apple announced the operating system at WWDC in June. Unfortunately for the rest of us, we have to wait (im)patiently until Yosemite launches officially this fall. Unless you signed up for Apple’s public OS X Yosemite beta program, in which case tomorrow is your lucky day.
OS X users who sign up for this program, which was also announced at WWDC, get access to the beta early without needing a developer account. And beta access will ship Thursday, July 24th.
Apple is planning to release a publicly available beta of the upcoming OS X Yosemite later this month, according to sources briefed on the plans. This release will mark the first time Apple has released a public beta of a new OS X version in over a decade.
In addition to iOS 7.1.2, Apple today released OS X version 10.9.4 for all Macs running Mavericks. While 10.9.3 was a relatively large update that improved 4K display support on several Macs and restored local contact and calendar syncing, 10.9.4 is only a few hundred megabytes and focuses on smaller problems.
The brand new OS X Yosemite is perhaps the most dramatic redesign of Apple's operating system to date. After some time using the biggest features in the new OS in a developer preview, I think Apple's on to something.
At this stage in the game, it's not fair or appropriate to give the new (very beta!) version of OS X a real evaluation. Some of the features aren't fully-formed, while others—ahem, iCloud Drive—seem barely present at all, at least not in the final form we were expecting.