2016-11-25:见最新官方文件http://downloads.raspberrypi.org/raspbian/release_notes.txt
* SSH disabled by default; can be enabled by creating a file with name "ssh" in boot partition
* Prompt for password change at boot when SSH enabled with default password unchanged
* Adobe Flash Player included
* Updates to hardware video acceleration in Chromium browser
* Greeter now uses background image from last set in Appearance Settings rather than pi user
* Updated version of Scratch
* Rastrack option removed from raspi-config and Raspberry Pi Configuration
* Ability to disable graphical boot splash screen added to raspi-config and Raspberry Pi Configuration
* Appearance Settings dialog made tabbed to work better on small screens
* Raspberry Pi Configuration now requires current password to change password
* Various small bug fixes
* Updated firmware and kernel
最新版本的raspbian系统默认ssh关闭，解决办法：
在内存卡根目录下建个名为“ssh”的文件，放入树莓派重启就会自启ssh了。
即：在刻录好的SD卡根目录建个SSH的文件（新建文本，改名SSH，去掉后缀！！！）