|January 1976 to December 2001
|APS
|style="background: yellowgreen; color: white;" | KindaYes|✓|~|~
|-
|<del>January 2001 to December 2001</del>
|January 2002 to December 2004
|XML Version 2.5
|style="background: redgreen; color: white;" | Only syntaxYes|✓|~|~
|-
|January 2005 to December 2005
|XML Version 4.0 ICE
|style="background: yellowgreen; color: white;" | MaybeYes|✓|~|~
|-
|January 2006 to December 2006
|XML Version 4.1 ICE
|style="background: yellowgreen; color: white;" | MaybeYes|✓|~|~
|-
|January 2007 to December 2012
|XML Version 4.2 ICE
|style="background: yellowgreen; color: white;" | MaybeYes|✓|~|~
|-
|January 2013 to September 24, 2013
|style="background: green; color: white;" | Yes
|✓
|✓~|✓~
|-
|October 8, 2013 to December 2014
|style="background: green; color: white;" | Yes
|✓
|✓~|✓~
|-
|January 2015 to December 2016
|style="background: green; color: white;" | Yes
|✓
|✓~|✓~
|}