Following an update to Gmail last week that brought improved search results and integration of contact information and Google+ Circles, today Google announced on the Official Gmail Blog that it is now including autocomplete predictions when searching from within your Gmail inbox.
Much like Google Web search and many of its other services, when beginning to type in the search bar from within Gmail, you will now see suggestions or autocomplete predictions matching content within your emails. Google explained:
Now when you type something into the Gmail search box, the autocomplete predictions will be tailored to the content in your email, so you can save time and get the information you want faster than ever before. For example, you might now get lax reservation or lax united as predictions after typing “lax” if you have received an email with a flight confirmation for your trip to Los Angeles in your inbox recently.
The new feature will roll out to English Gmail users over the next few days, but Google noted support for additional languages would roll out over the coming months. The feature is also not yet available to Google Apps users.