On Sepetember 20th Apple released the first update to Final Cut Pro X (10.0.1) and announced that additional updates will be released in early 2012. The PixelCorps video below is long, but provides great information on the new features and fixes:

Updates Include:

• Rich XML Support
• Xsan Support
• Media Stems Export
• Custom Starting Timecode
• One-step Transitions on Connected Clips
• New Theme: Tribute
• Full-screen view in Lion
• GPU-accelerated export
• Camera Import SDK