[visual-studio] Visual Studio Community 2015 expiration date

There is and there isn't an expiration date. If you register Visual Studio 2015 Community Edition by successfully signing into Visual Studio then the product is fully unlocked with no set expiry date. If you don't sign in (or haven't entered a purchased licence key), you only have 30 day evaluation license.

You can check whether your copy of Visual Studio has is registered or not by selecting Help -> About Microsoft Studio and clicking on the "License Status" link in the upper right of the About dialog. If your product isn't registered you'll see something like this:

Visual Studio 2015 License Status Window