I want version 13.0

Sirikonda Said:

"I want version 13.0: I want latest version of software"

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iOS 13 is no longer available as an update option.

Updating an iPhone:

Update Using a Computer:

Have a Computer Handy? If so, try using a computer to update. Go here: Update your iPhone Using a Computer - User Tip. If any updates are availabe, they will install, sure enough.

You cannot update to iOS 13, regardless of which iPhone you have.

You don't write which iPhone you have, so below you see your options:

iPhone 5S and iPhone 6 series can be updated to:

iOS 12.5.7

iPhone 6S series, iPhone SE 1.Gen and iPhone 7 series can be updated to:

iOS 15.7.3

iPhone 8 series and newer can be updated to:

iOS 16.3 (Latest version now)

You can see how to update your iPhone here:

Update your iPhone or iPad - Apple Support