writes "In a blog post, Andy Patrizio laments the trend — made more common in the mobile world — of companies pushing software updates ahead without the ability to roll-back to previous versions in the event that the user simply doesn't like it. iOS 7.1, for example, has reportedly been killing some users' battery power, and users of the iTunes library app TuneUp will remember how the much-maligned version 3.0 effectively killed the company behind it (new owners have since taken over TuneUp and plans to bring back the older version).
The ability to undo a problematic install should be mandatory, but in too many instances it is not. That's because software developers are always operating under the assumption that the latest version is the greatest version, when it may not be. This is especially true in the smartphone and tablet world. There is no rollback to be had for anything in the iOS and Android worlds.
Until the day comes when software developers start releasing perfectly functioning, error-free code, we need the ability to go backwards with all software."Link to Original Source