The new features include the following;

* Save your search: you can use the ‘name this search feature through the advanced search and save the setting for up to eight searches.

* Local Business Ads: You can view, add and update your local business ads with the new local business ads tab.

* Export picker: Select specific campaigns and ad groups to export to CSV.

* Draft account: you can share the draft account with other AdWords Editor users, to post, export the account for archiving, then import it into a non-draft account.

* Targeting Default Campaign: You can target your new campaigns through the Tools menu > Settings, and specifying a language and location.

* Quickly error finder: You can see splats at the top of the affected tabs in case of any error or warning.

Apart this you can view more rows in the data and review proposed changes throughout the error descriptions. For more changes and improvement you can check the Adword Editor Release Note.