iOS 11 has only been out a week but Apple has already released its first update.

The company rolled out the 11.0.1 update Tuesday, which includes an important fix for a bug that was causing some users a major headache.

SEE ALSO: 13 hidden features in iOS 11

The update fixes a bug that prevented some people who used Microsoft email accounts from sending messages, according to the company's support website. Specifically, the bug affected Outlook.com and Office 365 users who saw an error message when trying to send emails.

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Updating to iOS 11.0.1 should fix the issue, according to the company.

As always, you can update to the latest version in your device's main settings app Settings --> General --> Software Update.

Though the email bug is the first to be fixed, there's likely to be more iOS 11 updates and bug fixes coming sooner than later, as there's always more issues that crop up in the weeks after a major new release.

Apple is also expected to roll out some significant new features, like its Venmo-like payments feature, in subsequent iOS 11 updates later this year.

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