Releases

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Firefox (Fx) Prior Releases
Thunderbird (TB) Prior Releases

Thunderbird 1.5

  • TB 1.5.0.10 – RELEASED: March 1 2007
  • TB 1.5.0.12 – RELEASED: May 30, 2007

Thunderbird 2.0

  • TB 2.0b2 – RELEASED: January 24, 2007
  • TB 2.0 (Final) – RELEASED: April 18, 2007
  • TB 2.0.0.4 – RELEASED: June 14, 2007
  • TB 2.0.0.5 – RELEASED: July 19, 2007
  • TB 2.0.0.6 – RELEASED: August 2, 2007
  • TB 2.0.0.9 – RELEASED: November 14, 2007
  • TB 2.0.0.12 – RELEASED: February 26, 2008
  • TB 2.0.0.14 – RELEASED: May 1, 2008
  • TB 2.0.0.16 – RELEASED: July 23, 2008
  • TB 2.0.0.17 – RELEASED: September 26, 2008
  • TB 2.0.0.18 – RELEASED: November 19, 2008
  • TB 2.0.0.19 – RELEASED: December 31, 2008
  • TB 2.0.0.21 – RELEASED: March 19, 2009
  • TB 2.0.0.22 – RELEASED: June 23, 2009
  • TB 2.0.0.23 – RELEASED: August 20, 2009
  • TB 2.0.0.24 – RELEASED: March 16, 2010

Thunderbird 3.0

  • TB 3.0a1 – RELEASED: May 13, 2008
  • TB 3.0a2 – RELEASED: August 12, 2008
  • TB 3.0a3 – RELEASED: October 14, 2008
  • TB 3.0b1 – RELEASED: December 9, 2008
  • TB 3.0b2 – RELEASED: February 26, 2009
  • TB 3.0b3 – RELEASED: July 21, 2009
  • TB 3.0b4 – RELEASED: September 22, 2009
  • TB 3.0rc1 – RELEASED: November 25, 2009
  • TB 3.0rc2 – RELEASED: December 2, 2009
  • TB 3.0.0 - RELEASED: December 9, 2009
  • TB 3.0.1 - RELEASED: January 20, 2010
  • TB 3.0.2 - RELEASED: February 25, 2010
  • TB 3.0.3 – RELEASED: March 1, 2010
  • TB 3.0.4 – RELEASED: March 30, 2010
  • TB 3.0.5 – RELEASED: June 1, 2010
  • TB 3.0.6 – RELEASED: July 20, 2010
  • TB 3.0.7 – RELEASED: Sept 7, 2010
  • TB 3.0.8 – RELEASED: Sept 16, 2010
  • TB 3.0.9 – RELEASED: October 19, 2010
  • TB 3.0.10 – RELEASED: October 27, 2010
  • TB 3.0.11 – RELEASED: December 9, 2010

Thunderbird 3.1

  • TB 3.1a1 – RELEASED: February 3, 2010
  • TB 3.1b1 – RELEASED: March 11, 2010
  • TB 3.1b2 – RELEASED: May 5, 2010
  • TB 3.1RC1 – RELEASED: May 27, 2010
  • TB 3.1RC2 – RELEASED: June 9, 2010
  • TB 3.1.0  – RELEASED: June 24, 2010
  • TB 3.1.1 – RELEASED: July 20, 2010
  • TB 3.1.2 – RELEASED: August 5, 2010
  • TB 3.1.3 – RELEASED: Sept 7, 2010
  • TB 3.1.4 – RELEASED: Sept 16, 2010
  • TB 3.1.5 – RELEASED: October 19, 2010
  • TB 3.1.6 – RELEASED: October 27, 2010
  • TB 3.1.7 – RELEASED: December 9, 2010
  • TB 3.1.8 – RELEASED: March 1, 2011
  • TB 3.1.9 – RELEASED: March 4, 2011
  • TB 3.1.10 – RELEASED: April 28, 2011
  • TB 3.1.11 – RELEASED: June 21, 2011
  • TB 3.1.12 – RELEASED: August 16, 2011
  • TB 3.1.13 – RELEASED: August 30, 2011
  • TB 3.1.14 - RELEASED: September 6, 2011
  • TB 3.1.15 – RELEASED: September 27, 2011
  • TB 3.1.16 – RELEASED November 8, 2011
  • TB 3.1.17 – RELEASED: December 20, 2011
  • TB 3.1.18 – RELEASED: January 31, 2012
  • TB 3.1.19 – March 13, 2012
  • TB 3.1.20 – April 24, 2012 ~END TB 3.1.x BRANCH SUPPORT~

Thunderbird 3.3/5.0^

  • TB 3.3a1 – RELEASED: November 24, 2010
  • TB 3.3a2 – RELEASED: January 20, 2011
  • TB 3.3a3 – RELEASED: March 15, 2011
  • TB 5.0b1 – RELEASED: June 2, 2011
  • TB 5.0b2 – RELEASED: June 22, 2011
  • TB 5.0 Final -RELEASED: June 28, 2011

Thunderbird 6.0

  • TB 6.0 Earlybird – N/A
  • TB 6.0 Beta - RELEASED: July 20, 2011
  • TB 6.0.0 – RELEASED: August 16, 2011
  • TB 6.0.1 – RELEASED: August 30, 2011
  • TB 6.0.2 – RELEASED: September 6, 2011

Thunderbird 7.0

  • TB 7.0 Earlybird - RELEASED: July 7, 2011
  • TB 7.0 Beta 1 – RELEASED:  August 25, 2011
  • TB 7.0 Beta 2 - RELEASED: September 6, 2011
  • TB 7.0.0 – RELEASED: September 27, 2011
  • TB 7.0.1 – RELEASED: September 30, 2011

Thunderbird 8.0

  • TB 8.0 Earlybird – RELEASED: August 18th
  • TB 8.0 Beta 1 – RELEASED – October 5th
  • TB 8.0 Beta 2 – RELEASED – October 12th
  • TB 8.0 Beta 3 – RELEASED – October 19th
  • TB 8.0 Beta 4 – RELEASED – October 26th
  • TB 8.0 Beta 5 – RELEASED – November 3rd
  • TB 8.0 – RELEASED – November 8th

Thunderbird 9.0

  • TB 9.0 Earlybird – RELEASED: September 30th
  • TB 9.0 Beta – RELEASED: November 16th
  • TB 9.0 – RELEASED: December 20th
  • TB 9.0.1 – RELEASED: December 23rd

Thunderbird 10.0

  • TB 10.0 Earlybird – RELEASED: November 11th
  • TB 10.0 Beta – RELEASED: December 23rd
  • TB 10.0 - RELEASED: January 31st, 2012

Thunderbird ESR 10.0 (Extended Support Release)

  •     TB ESR 10.0.0 – RELEASED: January 31, 2012
  •     TB ESR 10.0.1 – March 13, 2012
  •     TB ESR 10.0.2 – April 24, 2012
  •     TB ESR 10.0.3 – June 5, 2012
  •     TB ESR 10.0.4 – July 17, 2012
  •     TB ESR 10.0.5 – August 28, 2012
  •     TB ESR 10.0.6 – October 9, 2012
  •     TB ESR 10.0.7 – November 20, 2012
  •     TB ESR 10.0.8 – January 2, 2013 ~END ESO 10.0 BRANCH SUPPORT~

Thunderbird/ESR 17.0 (Extended Support Release)

  •     TB ESR 17 Aurora – August 28, 2012
  •     TB ESR 17 Beta – October 9, 2012
  •     TB ESR 17 Release – November 20, 2012

Thunderbird 11.0

TB 11 Aurora – RELEASED: December 23, 2011
TB 11 Beta -January 31, 2012
TB 11 Release – March 13, 2012

Thunderbird 12.0

TB 12 Aurora – January 31, 2012
TB 12 Beta – March 13, 2012
TB 12 Release – April 24, 2012

 

^ In May 2011, Thunderbird has synced with Firefox Rapid Release schedule.
* As part of the new Rapid Release Schedule, dates listed for Aurora and Beta builds reflect when the code merge is to begin. The actual release to that particular channel may vary by several days. See this post for more details.

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