Apple Inc.’s long-promised overhaul for the Siri digital assistant is facing engineering problems and software bugs, threatening to postpone or limit its release, according to people with knowledge of the matter.

Apple is reportedly 'still racing to finish the software,' but some of Siri's new AI features, originally pegged for the April rollout of iOS 18.4, may not arrive until May or later.

The report highlights that Apple initially announced the AI-powered Siri enhancements at its developers’ conference in June 2023, with plans to release some features by April 2024. However, internal challenges may push the release to May or later.