Google has finally begun rolling out a highly anticipated feature allowing users to change their existing @gmail.com email addresses, a significant shift after over a decade of username immutability. While this offers convenience, users must be aware of several strict limitations.

• Users can change their @gmail.com username on the same account, with the old address becoming a proxy for continued email delivery and login.
• The feature is limited to a maximum of three username changes per account, with a 12-month waiting period between changes.
• ChromeOS users are strongly advised to perform a complete backup before making a change to avoid data loss.
• The new feature is currently rolling out and is only available for @gmail.com addresses, with the new username also needing to end in @gmail.com.