Apple has pushed back the release of watchOS 2, which was scheduled to land as a free update at 6pm BST today.
USA Today's Ed Baig, who broke the news, said that the second iteration of the Apple Watch software will not arrive today.
“Apple found a bug in watchOS 2 and is NOT releasing the software today as planned," wrote Baig in a tweet earlier this afternoon.
Apple has since released a statement confirming the report, saying that watchOS 2 will land "shortly".
However, the rollout of iOS 9 will go ahead as planned, according to the Financial Times' Tim Bradshaw.
Once Apple has managed to iron out the issues with its software, watchOS 2 will represent a big step forward for Cupertino’s timepiece.
It will arrive with a lengthy list of improvements and enhancements, although it stops short of transforming the Watch into the round-faced device most of us initially expected Apple to produce.
One of the biggest changes concerns native apps. Not only will users be treated to a wider selection, including Facebook Messenger and iTranslate, but there will also be more sophisticated efforts.
Fitness apps will make full use of the accelerometer, for example, while you’ll also be able to reply to contacts with audio messages through watchOS 2.
In addition, there will be many more watch faces from which to choose, and the new Complications feature will display extra information on your homescreen, much like widgets work on a smartphone.
SEE ALSO: watchOS 2: What's new?
Siri will now integrate directly with HomeKit through the Apple Watch, and you can even reply to emails through Apple’s virtual assistant.
Whether watchOS 2 helps the Apple Watch score anything higher than the 6/10 it managed in our original review remains to be seen.