January 31 2018: The 2018 Edition of the joint specifications has been published.

September 30 2016: The 2016 Edition of the joint specifications has been published.

June 30 2016: IEEE approved Technical Corrigendum 2.

June 22 2016: The Open Group approved Technical Corrigendum 2.

April 19 2013: The 2013 Edition of the joint specifications has been published.

6 February 2013: IEEE approved Technical Corrigendum 1.

25 October 2012: The Open Group approved Technical Corrigendum 1.

August 2012: ISO Approves Technical Corrigendum 1.

September 15 2009: ISO publishes ISO/IEC 9945:2009

December 2008: ISO approves ISO/IEC 9945

September 26 2008: IEEE approves IEEE Std 1003.1-2008

July 24 2008: The Open Group approves the Base Specifications Issue 7

Sep 15 2004, ISO/IEC published Technical Corrigenda ISO/IEC 9945:2003/Cor-1:2004

April 2004, IEEE and The Open Group publish 2004 Edition of the standard.

April 2004, ISO/IEC ballot for TC2 passes.

December 2003/February 2004, The Open Group and IEEE Approve Technical Corrigendum 2
August 2003 - ISO/IEC publish 2003 edition of standard
February 2003 - The Open Group and ISO Approve Technical Corrigendum Number 1
December 11 2002 -- IEEE approves Technical Corrigendum Number 1.
November 14 2002 -- ISO/IEC announces International approval of the standard.
September 19 2002 -- The standard has passed its final FDIS ballot at ISO .
December 6th 2001 -- the IEEE Standards Board approves the Austin Group Specification as IEEE Std 1003.1
October 11 2001 -- The ISO/IEC Second FCD Ballot Passed.
Sept 12 2001 -- The Open Group approves the Austin Group Specification as an Open Group Technical Standard.