以下是官方说明:Raspbmc (www.raspbmc.com)-------###Raspbmc is a minimal Linux distribution based on Debian that brings XBMC to your Raspberry Pi. This device has an excellent form factor and enough power to handle media playback, making it an ideal component in a low HTPC setup, yet delivering the same XBMC experience that can be enjoyed on much more costly platforms. Raspbmc is brought to you by the developer of the Crystalbuntu Linux Distribution, which brings XBMC and 1080p decoding to the 1st generation Apple TV.###AUGUST:Support for Raspberry Pi鈥檚 with Micron memory to installerRe-added support for Dual Audio (simultaneous analog and HDMI output)Fixed some issues where some settings were not applied properly: GPU and CPU temperature display Cache buffer size (would have caused streaming issues) Number of background worker threads (could have caused crashes) Resolution of fanart (could have caused OOM on the VideoCore)Thanks to popcornmix for his usual contributions: Fix for visualisations in XBMC Fix for adjusting video settings during playback Fix for seeking issues with DVD and online content Fix for issues with OGG playback Fix for the buffering regression when playing files with (unused) TrueHD audio (may help other files)Properly fix issue with SSIDs that have spaces in their nameReduce installation and update time by making kernel header installation optional via Raspbmc SettingsFix a kernel updating bug with NOOBS installationsIf MD5 hash fails on kernel update, then Raspbmc will try and update the kernel again on the next bootUpdated standalone image to August release to save update time and ensure absolute package freshnessJULY:popcornmix has made significant changes to XBMC鈥檚 player on Raspberry Pi, as well as backport these. This brings and addresses the following features: Issues with synchronisation when watching videos Fixes for playback with HBO content Fixes for issues with MKV files that had two audio tracks Fast forward and rewind support LiveTV improvements Many more architectural changesBoblight is now available as a dispmanx implementation, making it easier to maintain in the future. The client itself is faster too, as it uses the Boost library for handling strings. You鈥檒l need to edit your boblight configuration to be compatible with the new daemon. Thanks to Speedy1985 and broocA VNC server is now included in Raspbmc and can be enabled in Raspbmc Settings. Do note that this can impact UI performance and should be considered experimental at the moment. Thanks Peter Hanzel for original dispmanx implementation.Raspbmc has screenshot support like other versions of XBMC (just press Prt Screen)There are also excellent improvements to DTS decoding from the RISC OS guys who have done a great job optimising decode pathways with ARMV6 assembly.The new Raspbmc skin looked a tad blurry, and so visuals have been refreshed and updated. Many thanks to Brad WatsonIssues with scanning for wireless networks with spaces in the SSID have been fixed 鈥� thanks hmoARM accelerated functions from <string.h> 鈥� this means speed improvements!Updated firmware and kernel provide: MJPEG support Fix for USB disconnect issuesJUNE:Tweaks to the initialisation system speed up booting and remove some initial UI lag that occurs just after startupThere are some performance and stability enhancements, particularly when playing high bitrate content.Updated firmware and kernelFix for TP-Link WN725N V2 devicesFix Live TV stopping when selecting another channelFix for Live TV aspect ratio issues resulting in black screenBackport of delegation of discontinuity in streams to GPU rather than OMXPlayer (resolves some streaming issues), thanks to popcornmix for the original fix!Now available via Raspbmc Settings: Boblight support provides an ambilight like implementation. Take a look at this user鈥檚 setup here Raspberry Pi camera addon support allowing surveillance. This is useful for watching a bird feed or your kids. Images are taken at a desired interval and uploaded to /home/pi/camera. Ability to scan for WiFi hotspots instead of having to type the SSID in.Users now warned if power supply is detected to be inadequateSimultaneous audio output (HDMI and Analog) is now supportedA new XBMC skin, made for Raspbmc by A Future Pilot and fuzzword. Many thanks to the wonderful contribution that these two have made. You can swap back to the default skin at any time via System -> Settings.libCEC is updated for improved compatibility with TV sets.24 hour nightly builds of XBMC 13.x are now available againEnable IPV6 connectivity for SSH/tmp and /var/log no longer stored in ZRAM tmpfsSupport for NOOBS 1.2Support for Stealth Nighthawk F117AAnother two mirrors have joined the Content Delivery Network which means faster updates and installs. The project is very weak for downloads in Asia and would very much appreciate a mirror to help offer users a good quality update and installation experience there.MAY:Fixed a rare issue where the update system does not get triggered.Fixed an issue where videos continue playing on a black screen (thanks popcornmix)TVHeadend updated to version 3.4.Fix a bug where the firewall does not disable despite being disabled via Raspbmc Settings.USB DACs and PulseAudio support is supported in XBMC 12.2 again. Note that this is an unofficial addon maintained by the Raspbmc team, rather than being supported by XBMC directly, which is why it took some time to port to 12.2.Better compliance with upstream Debian (using apt-get upgrade)###############For more information about updates, please see www.raspbmc.com