iOS 7 is out - but you might not have it yet.
Many iPhone and iPad users are waking up after a long delay in downloading the updated operating system as millions attempted to do so at once.
Some users reported estimated download times of more than 60 hours at the height of the rush - though most have completed in a far shorter amount of time.
Hailed as a new beginning for the technology giant, the iOS 7 was eagerly anticipated but tech fans complained of messages telling them: "An error occurred whilst downloading iOS 7.0".
Users took to social media such as Twitter to express their frustration at the setback as "iOS 7.0" became a trending topic.
Sam Allison, tweeting under the handle @VF2010_, responded to the outcry saying: "Guess I'm not the only one getting an Error message trying to Download IOS 7.0 #Annoying"
Conor Rickards, using the handle @_cajr, opted for irony, tweeting: "Having a great time using IOS 7.0" whilst posting a picture of the error message.
"I don't understand why it won't let me download iOS 7.0," wrote Diana Ulloa (@Deeandhearts).
Others, such as @King_Julien1984, complained about messages telling them their download would take 11 hours to be completed.
Elle Lake (@lizzylake) said: "43 minutes remaining to download iOS 7.0 but now 10 minutes later there is an error,and I have to upload it again with another 2 hour wait."
@igc223 said: "deleted all my apps, music, and pictures and still don't have enough storage to download iOS 7.0"
Some had managed to download the system and praised it, such as Ashlyn Tracy (@MsPrettyPricey), who said "Loving the new iOS 7.0 #iPhone .get it people"
Industry observers had suggested the arrival of iOS 7, which is said to have a cleaner look than its predecessors, could go some way to silencing Apple's critics.
It was unveiled just months after Apple posted its first profit slide in a decade and drew accusations that it has failed to innovate.
British design chief Sir Jonathan Ive introduced the operating system as an ''important new direction'' when he showcased the software at Apple's annual Worldwide Developers Conference in San Francisco earlier this year.
The American company's CEO Tim Cook described it as ''the biggest change to iOS since the introduction of the iPhone''.
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