IDL 8.2.2 was released today:

IDL 8.2.2 is now available for download from our website, Although it’s primarily a maintenance release (including 104 bugs fixed), it also has some meat, with updates in, primarily, the categories of (New) Graphics, language and file access.

Haven’t been able to download yet, but will take a look at this as soon as I can get my hands on it.