We have added the following new features in AdWords scripts.
Ad customizers
AdWords scripts now support 
ad customizers, a more advanced version of 
ad params. Ad customizers adapt your text ads to the full context of a search or the webpage someone's viewing, by inserting a customized parameter within the ad. Ad customizers let you customize your ads for each query without having to create a separate ad for each variation.
AdWords scripts allow you to create ad customizer 
sources, add or update 
items in the sources, and create 
parameterized ads. You can also target an ad customizer item to a specific 
campaign, 
ad group or 
keyword, and track the performance of ad customizers using the 
PLACEHOLDER_FEED_ITEM_REPORT.
To learn more about ad customizers, refer to our 
code snippets and 
guide. Also, check out the brand new ad customizers 
solution that shows how to use this new feature in your account.
v201409 reports
We now support AdWords API v201409 reports in AdWords scripts. See 
blog post for more details.
Product ads
You can now 
retrieve your 
product ads using the 
ads() method of the 
ShoppingAdGroup. You can 
create new product ads using the 
newAdBuilder() method of 
ShoppingAdGroup.
We hope you enjoy these new features. If you have any questions about these features or AdWords scripts in general, you can post them on the 
developer forum.
 Anash P. Oommen, AdWords Scripts Team
 Anash P. Oommen, AdWords Scripts Team