作为一个升级强迫症，手贱是必须的
刚才看到一个10.10.3的补充升级，点完就悲剧了
webdriver又失效了
好在我有版本修改大法：
FIX
Using Terminal enter the following:
sudo pico /System/Library/Extensions/NVDAStartup.kext/Contents/Info.plist
Then change the line
<key>NVDARequiredOS</key>
<string>14D131</string>
to
<key>NVDARequiredOS</key>
<string>14D136</string>
Press Control+O then enter to save the changes and then press Control+X to exit
Then enter the following two commands. Hit enter after each one
sudo kextcache -system-prelinked-kernel
sudo kextcache -system-caches
