Older iPhone handsets had been slowed down by Apple so their batteries could cope with the latest software.
Apple is already facing lawsuits in the United States and elsewhere over accusations of having defrauded iPhone users by slowing down devices without warning to compensate for poor battery performance and to push clients into buying new phones.
The new iOS update will also bring some other bug fixes and performance improvements to the iPhone and iPad and also some new features.
Following a public uproar, Apple CEO Tim Cook told ABC News Apple's next iOS update will be more transparent about the health of your phone battery. Users had suspected Apple's practice for quite some time, and despite Apple's reasoning, many users were furious and a number of have been filed against the company. Last week two beta updates were rolled out, and this fast pace may indicate that iOS 11.2.5 is nearly ready for prime time.
The new Apple feature that will stop your old iPhone slowing down
Last year Apple was forced to clarify the feature after research revealed its detrimental effect on a phone's performance.
Apple confirmed on December 20 that software in iPhone 6, iPhone 6s and iPhone SE models to deal with dangers from ageing batteries could slow down the phone's performance.
"We're going to give people the visibility of the health of their battery", Cook said.
As part of its attempt to minimize the backlash against its battery strategy, Apple has also cut the price of battery replacements from $79 to $29. "We deeply apologize for anyone who thinks we have some other kind of motivation". It is likely that the debut of the option to turn off the controversial power management feature won't be far behind, but it typically takes anywhere from weeks to a few months before Apple pushes a software update out of beta and to all users. The company is adamant that this is not a ploy to get people to buy newer models, but a tactic created to stop devices from unexpectedly restarting, due to the limitations brought on by battery age.More news: 1 of 4 officers shot in SC in critical condition