iRulesLX. Anyone have any information what this new feature is?

iRulesLX is a language extension to iRules, the first iteration being Node.js. In 12.0, it is an Early Access feature, which requires an add-on license to function.

Even though you will be able to provision, configure, and attach iRulesLX configuration to the virtual servers, it will not work without an EA license.

Some points of clarification to the questions on and comments.

1. The TCL-based iRules are not in any way going away. The LX is an extension of the existing iRules platform, not a replacement.
2. It is not a standalone platform whereas you choose iRules or iRulesLX. The Node.js platform is called from iRules with an init command.
3. We will have a release plan for articles on use cases and architectural considerations as iRulesLX transitions from early access to general availability.

Please drop any comments or questions in the comments attached to this answer and we'll do our best to address your concerns.