We can have a quick review of the key features and fixes from Apple as below:
1.Support for Sony XAVC codec up to 4K resolution
2.Option to display ProRes Log C files from ARRI ALEXA cameras with standard Rec. 709 color and contrast levels
3.Resolves an issue where some third-party effects generated green frames during render
4.Resolves performance issues that could occur with certain titles and effects
5.Ability to use key commands to adjust Clip Appearance settings in the timeline
This is good news to a lot of FCP7 refugees but before it comes true, the users of FCP 6/7 will still have to face the problem of handling the XAVC footages coming along with Sony PMW-F5/F55 camcorders, which behaves as follows: they can neither edit PMW-f55 footage in FCP or edit Sony pmw-f5 XAVC in FCP and other popular editors without any problem, because both FCP 6 and FCP 7 cannot recognize XAVC at all.
For the purpose of converting XAVC footages to FCP for editing, a good xavc converter mac is required. Doremisoft has developed such great converter to help us transcode XAVC to Apple ProRes 422 MOV format supported by FCP/iMovie flawlessly. Being specially designed for Mac users to handle all XAVC issues, this converter can freely transport xavc to imovie by converting XAVC recordings to ProRes MOV for iMovie with no quality loss. In addition, the interface is quite friendly, making it very easy to be operated.
Tips: If you are Windows user, please go to download the Windows trail version at convert xavc on Windows.
Follow the below steps to practice conducting the conversion
Step 1: Run the converter and then click "add file" to import the XAVC footages to the program.

Step 2: Choose "Convert to" > "Final Cut Pro" > "Apple ProRes 422 MOV" as the output format

Step 3: Press "START" to launch the conversion. Several minutes later, you can get the converted files with top quality.
If you have any idea on the XAVC, give me your thoughts via Face book and Twitter feeds or the comments below. Appreciated!