Apple seems to be working hard on Mac OSX Mavericks since it initially launched to keep fixing bugs and make minor improvements to the OS before the launch of Mac OSX 10.10 which according to the latest rumors will feature a completely redesigned and flatter UI.
Apple’s upcoming version of Mac OSX Mavericks 10.9.4 has already been released internally to its employees, Codenamed “Epic” the new version mainly brings bug fixes and stability improvements making the overall experience when using the OS much more pleasant.
As of now, version 10.9.3 hasn’t been released yet but the fact that 10.9.4 is already being beta tested by Apple employees means that the release of the new version is right around the corner. 10.9.3 which will include several much awaited changes (source)
- Improved 4K display support on Mac Pro and Mac Book pro
- Adds the ability to sync contacts and calendars between a Mac and iOS Device using a USB connection
- Improves the reliability of VPN connections using IPsec
- Includes Safari 7.0.3