2007

• Thursday, December 20, 2007, OpenSER version 1.2.3 was released as patch update to 1.2 series. More here.
• Thursday, December 13, 2007, OpenSER version 1.3.0 (BlackCat) was released. The announcement is here.
• Thursday, August 16, 2007, OpenSER version 1.2.2 was released. The announcement is here.
• Wednesday, May 23, 2007, OpenSER version 1.2.1 was released. The announcement is here.
• Monday, May 7, 2007, OpenSER and SER Performance Comparison
• Wednesday, March 14, 2007, OpenSER v1.2.0 performance tests
• Monday, March 12, 2007, OpenSER version 1.2.0 was released. The announcement is here.
• Monday, January 22, 2007, OpenSER version 1.1.1 was released. The announcement is here.

2006

• Wednesday, November 8, 2006, First OpenSER Summit took place in Berlin, Germany. Details here.
• Monday, July 10, 2006, OpenSER version 1.1.0 was released. The announcement is here.
• Monday, February 27, 2006, OpenSER version 1.0.1 was released. The announcement is here.

2005

• Friday, October 28, 2005, OpenSER version 1.0.0 was released. The announcement is here.