Obviously, folks currently jailbroken, or those still on iOS 9.3.3 with hopes of jailbreaking should also stay away from 9.3.5, as Apple stopped signing 9.3.2 and 9.3.3 earlier this week.
Here are the full release notes from Apple’s Support page:
Kernel
Available for: iPhone 4s and later, iPad 2 and later, iPod touch (5th generation) and later
Impact: An application may be able to disclose kernel memory
Description: A validation issue was addressed through improved input sanitization.
CVE-2016-4655: Citizen Lab and LookoutKernel
Available for: iPhone 4s and later, iPad 2 and later, iPod touch (5th generation) and later
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: A memory corruption issue was addressed through improved memory handling.
CVE-2016-4656: Citizen Lab and Lookout
WebKit
Available for: iPhone 4s and later, iPad 2 and later, iPod touch (5th generation) and later
Impact: Visiting a maliciously crafted website may lead to arbitrary code execution
Description: A memory corruption issue was addressed through improved memory handling.
CVE-2016-4657: Citizen Lab and Lookout
Note: The size of the IPSW firmware file varies depending on your device. To give you an idea, the iOS 9.3.5 IPSW firmware file is approximately 2.3 GB for the iPhone 6s Plus, 1.8 GB for iPod touch 6G and 1.9 GB for the 9.7-inch iPad Pro.
iOS 9.3.5 (iPhone 5 GSM): iPhone5,1_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone 5 GSM+CDMA): iPhone5,2_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone 5s GSM): iPhone6,1_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone 5s GSM+CDMA): iPhone6,2_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone 5c GSM): iPhone5,3_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone 5c GSM+CDMA): iPhone5,4_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone 6 Plus): iPhone7,1_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone 6): iPhone7,2_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone 6s): iPhone8,1_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone 6s Plus): iPhone8,2_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPhone SE): iPhone8,4_9.3.5_13G36_Restore.ipsw
Download iOS 9.3.5 for iPad
iOS 9.3.5 (iPad 2 GSM): iPad2,2_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad 2 CDMA): iPad2,3_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad 2 New): iPad2,4_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad 3 Wi-Fi): iPad3,1_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad 3 CDMA): iPad3,2_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad 3 GSM): iPad3,3_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini Wi-Fi): iPad2,5_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini GSM): iPad2,6_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini CDMA): iPad2,7_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad 4 Wi-Fi): iPad3,4_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad 4 GSM): iPad3,5_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad 4 GSM_CDMA): iPad3,6_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Air Wi-Fi): iPad4,1_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Air Cellular): iPad4,2_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini 2 Wi-Fi): iPad4,4_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini 2 Cellular): iPad4,5_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Air China): iPad4,3_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini 2 China): iPad4,6_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini 3 Wi-Fi): iPad4,7_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini 3 Cellular): iPad4,8_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini 3 China): iPad4,9_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Air 2 Wi-Fi): iPad5,3_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Air 2 Cellular): iPad5,4_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini 4 Wi-Fi): iPad5,1_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Mini 4 Cellular): iPad5,2_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Pro Wi-Fi): iPad6,7_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Pro Cellular): iPad6,8_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Pro 9.7 Wi-Fi): iPad6,3_9.3.5_13G36_Restore.ipsw
iOS 9.3.5 (iPad Pro 9.7 Cellular): iPad6,4_9.3.5_13G36_Restore.ipsw
Download iOS 9.3.5 for iPod touch
iOS 9.3.5 (iPod touch 6G): iPod7,1_9.3.5_13G36_Restore.ipsw
