Every time Apple releases a new version of iOS, there’s a good chance they have broken existing jailbreak techniques with it. If a public jailbreak has already been released, it means your jailbreak has gone away; if a public jailbreak hasn’t yet been released, an update can kill an exploit that will delay a public jailbreak by months.
Yesterday, Apple released iOS 7.0.4, but did they break the possibility of an iOS 7 jailbreak? Are you safe to update?
Hot on the heels of the iBooks de-Forstallization for iOS 7, Apple has released iOS 7.0.4 with “bug fixes and improvements.” The update also addresses “an issue that causes FaceTime calls to fail for some users,” according to the release notes. You can download 7.0.4 as a 37.6 MB update.
iOS 6.1.5 has also been released with the same FaceTime fix for the fourth-gen iPod touch, a device that can’t run iOS 7.
Apple released iOS 7.0.3 with iCloud Keychain, improvements for iMessage, and other bug fixes last month.