The "acronym" link navigates to the latest version of the specification, this link changes whenever a new version of the specification is published.
The "Version" link navigates to the specific version.

Name Acronym Version Status Publication Date
Total: 4
Action Language for Foundational UML ALF 1.0.1 formal September 2013
Audio/Video Streams AVSTR 1.0 formal January 2000
Semantics of a Foundational Subset for Executable UML Models FUML™ 1.4 formal December 2018
Unified Modeling Language UML® 2.4.1 formal July 2011