Just today Apple seeded OS X Yosemite 10.10.4 to their developers. The update, labeled build 14E7f, is available through the “Update” tab in the Mac App Store and the Dev Center for all registered Mac developers. As always, the beta can be found to registered Mac developers on Apple’s Developer portal.
Apple doesn’t specify what’s new in the build. But we’ll be updating this post as we find out more about the build.
The first beta of OS X Yosemite 10.10.4 comes a week after the public release of 10.10.3. Alongside the new Photos app, the release came with a handful of bug fixes and stability improvements.