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im-ade · Jun 1, 2018 · b855cc2 · b855cc2
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@@ -4,7 +4,7 @@ Digital Video Ad Serving Template
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 The IAB’s Video Ad Serving Template (VAST) specification is a universal XML schema for serving ads to digital video players, and describes expected video player behavior when executing VAST-formatted ad responses. VAST opens up the in-stream digital video advertising marketplace and reduces expensive technical barriers,encouraging advertisers to increase video ad spend. 
 
-VAST4 was released in January of 2016 (with a corrections update in April). With the proliferation of devices and screen sizes over the last few years, this release was focussed on meeting the challenges around delivering video ads efficiently to this wide variety of devices. The other area of focus was performance and trust - 
+VAST4 was released in January of 2016 (with a corrections update in April). With the proliferation of devices and screen sizes over the last few years, this release was focussed on meeting the challenges around delivering video ads efficiently to this wide variety of devices. This included features like separation of media files from verification and interactive code, a mezzanine file for server side ad insertion, etc. 
 
 For more information about the VAST specification, visit the [Digital Video Ad Serving Template](https://iabtechlab.com/specifications-guidelines/vast/) page on the IAB TechLab website.