The VSTS Extension Tasks are a set of tasks for Team Build and Release Management to package, publish, share and install extensions to your Visual Studio Team Services account or TFS 2015 update 2 server.
There are quite a few people using the extension to package and publish their Visual Studio Team Services and TFS extensions.
There's a few places with more information on how to use them:
- Getting started with the VSTS Extension Tasks
- Richard Fennel's blog post about them

Jesse Houwing
Jesse is a passionate trainer and coach, helping teams improve their productivity and quality all while trying to keep work fun. He is a Professional Scrum Trainer (PST) through Scrum.org, Microsoft Certified Trainer and GitHub Accredited Trainer. Jesse regularly blogs and you'll find him on StackOverflow, he has received the Microsoft Community Contributor Award three years in a row and has been awarded the Microsoft Most Valuable Professional award since 2015. He loves espresso and dark chocolate, travels a lot and takes photos everywhere he goes.
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