IDL 8.6.1 was released today[^1]. Some interesting new features:

* Conditional breakpoints from the Workbench
* Hexadecimal constants, e.g., a = 0xFF3A
* Fix for strings that begin with numerals being confused with the octal notation: "123 is an octal value; "123" used to be a syntax error, but is now a valid string.

See the [release notes] for details.

[release notes]: http://harrisgeospatial.com/Support/Maintenance/TabId/2350/ArtMID/10427/ArticleID/21253/Whats-New-in-IDL-861.aspx "What’s New in IDL 8.6.1"

[^1]: Really sometime in the last week or so. The announcement on the newsgroup was today, but the release notes was posted 7/27.