Apple Inc’s turmoil in its AI division reached new heights on Friday, with the company delaying promised updates to the Siri digital assistant for the foreseeable future, according to Bloomberg.

Apple said that features introduced last June, including Siri’s ability to tap into a user’s personal information to answer queries and have more precise control over apps, will now be released sometime in “the coming year”. The iPhone maker hadn’t previously set a public deadline for the capabilities, but they were initially planned for the iOS 18.4 software update this April.

Bloomberg News reported on Feb. 14 that Apple was struggling to finish developing the features and the enhancements would be postponed until at least May — when iOS 18.5 is due to arrive. Since then, Apple engineers have been racing to fix a rash of bugs in the project. The work has been unsuccessful, according to people involved in the efforts, and they now believe the features won’t be released until next year at the earliest.

In the lead-up to the latest delay, software chief Craig Federighi and other executives voiced strong concerns internally that the features didn’t work properly — or as advertised — in their personal testing, said the people, who asked not to be identified discussing internal matters. An Apple spokeswoman declined to comment.