Apple released urgent iOS updates, including iOS 12.5.8 for older iPhones, after emergency-call issues in Australia and a 2027 certificate deadline.

Macworld Apple has moved rapidly to address an iOS bug, which earlier this week was reported to be causing serious network issues in Australia. Telecoms firm Telstra issued a support document on Wednesday explaining that a bug was “preventing some older Apple devices from connecting to our network,

Apple has confirmed a major security flaw affecting millions of iPhones and iPads, putting users’ financial information at risk. The only way to stay safe? Update your device immediately.

Telstra has warned that a recent software update has impacted the network connectivity of several older iPhone models, including 000 access.

The iOS 26.2.1 update that Apple released today further addresses an issue preventing some older mobile phones from being able to make emergency calls. In an updated support document, Apple says that iPhone users with an iPhone 12 or earlier should install the latest software updates to ensure that their mobile devices are able to make emergency 000 calls.

Apple has urged Australians with older iPhones and Apple Watches to update their software to reduce the risk of emergency call connectivity issues.