不過要注意的是，如果你的手機是3GS，不要用OTA更新。我的3GS在OTA更新後重新開機會跳進DFU模式，最後還是要下載Beta 7的image從iTunes 還原，其他的機種就沒有這個問題。
Apple的開發者討論區也有許多人確認3GS透過OTA更新會有這樣的問題，所以如果還是要試試看的話，記得先備份..
這一版的release note還蠻多的，非開發者特別要注意的是，
1. iTunes
NEW: When trying to restore an iPhone 3GS or iPod touch 3rd generation device running Beta 6 to Beta 7 using iTunes, you will have to set the device into DFU or you can OTA update to Beta 7
若是要使用iTunes restore功能更新3GS到Beta7，必須要進入DFU mode後再更新，或是透過OTA(騙人，看起來大家3GS OTA更新都失敗了)
2. OTA Software Update
Users who installed iOS 5 beta 6 over the air from iOS 5 beta 3 must first erase all content and settings by choosing Settings > General > Reset > Erase All Content and Settings in order to install iOS 5 beta 7 over the air. This only impacts users who did not update to iOS 5 beta 4.
若是不曾更新過beta4的使用者(像是Beta3->OTA直升beta6)，必須要選擇清除所有內容後再更新beta7。
NEW: If you have a passcode set, it must be removed before updating to seed 7 from previous seeds. It can be re-enabled after the update is complete. Failure to do so may require iMessage to be re-enabled in settings.
如果你有設定手機密碼，記得先取消然後再更新。
