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.
Adoption Date represents the date the specification was generally available. You can sort the columns in the table.

Name	Acronym	Version	Status	Adoption Date
Total	8
Action Language for Foundational UML	ALF	1.1	formal	June 2017
Semantics of a Foundational Subset for Executable UML Models	FUML™	1.4	formal	December 2018
Precise Semantics of UML Composite Structures	PSCS™	1.2	formal	June 2019
UML Profile for Modeling QoS and FT	QFTP	1.1	formal	April 2008
UML Profile for System on a Chip	SoCP™	1.0.1	formal	August 2006
UML Profile for Schedulability, Performance, & Time	SPTP™	1.1	formal	January 2005
Unified Modeling Language	UML®	2.5.1	formal	December 2017
UML Testing Profile 2	UTP2	2.0	formal	December 2018