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Postfix Announcements

2025

• October 26, 2025: Postfix stable release 3.10.5 and legacy releases 3.9.6, 3.8.12, 3.7.17.

• August 18, 2025: Postfix stable release 3.10.4 and legacy releases 3.9.5, 3.8.11, 3.7.16.

• July 10, 2025: Postfix stable release 3.10.3.

• April 22, 2025: Postfix stable release 3.10.2 and and legacy releases 3.9.4, 3.8.10, 3.7.15.

• February 24, 2025: Postfix stable release 3.10.1 and and legacy releases 3.9.3, 3.8.9, 3.7.14, 3.6.18.

• February 16, 2025: Postfix stable release 3.10.0.

• February 16, 2025: Postfix legacy releases 3.9.2, 3.8.8, 3.7.13, 3.6.17.

2024

• December 4, 2024: Postfix stable release 3.9.1, and legacy releases 3.8.7, 3.7.12, 3.6.16 .

• March 6, 2024: Postfix stable release 3.9.0.

• March 4, 2024: Postfix stable release 3.8.6, 3.7.11, 3.6.15, 3.5.25.

• January 21, 2024: Postfix stable release 3.8.5, 3.7.10, 3.6.14, 3.5.24.

2023

• December 22, 2023: Postfix stable release 3.8.4.

• December 22, 2023: Postfix stable release 3.7.9.

• December 22, 2023: Postfix stable release 3.6.13.

• December 22, 2023: Postfix stable release 3.5.23.

• December 20, 2023: SMTP Smuggling, workarounds and fix.

• November 1, 2023: Postfix stable release 3.8.3 and legacy releases 3.7.8, 3.6.12, 3.5.22.

• September 1, 2023: Postfix stable release 3.8.2 and legacy releases 3.7.7, 3.6.11, 3.5.21.

• June 5, 2023: Postfix stable release 3.8.1 and legacy releases 3.7.6, 3.6.10, 3.5.20.

• April 18, 2023: Postfix legacy releases 3.7.5, 3.6.9, 3.5.19, 3.4.29.

• April 17, 2023: Postfix stable release 3.8.0.

• January 21, 2023: Postfix stable release 3.7.4 and legacy releases 3.6.8, 3.5.18, 3.4.28.

2022

• October 7, 2022: Urgent Postfix stable release 3.7.3 and non-urgent legacy releases 3.6.7, 3.5.17, 3.4.27.

• April 27, 2022: Postfix stable release 3.7.2.

• April 18, 2022: Postfix stable release 3.7.1 and legacy releases 3.6.6, 3.5.16, 3.4.26.

• February 5, 2022: Postfix stable release 3.7.0.

• February 5, 2022: Postfix legacy releases 3.6.5, 3.5.15, 3.4.25, 3.3.22.

• January 14, 2022: Postfix stable release 3.6.4 and legacy releases 3.5.14, 3.4.24, 3.3.21.

2021

• November 7, 2021: Postfix stable release 3.6.3 and legacy releases 3.5.13, 3.4.23, 3.3.20.

• July 24, 2021: Postfix stable release 3.6.2 and legacy releases 3.5.12, 3.4.22, 3.3.19.

• June 13, 2021: Postfix stable release 3.6.1 and legacy releases 3.5.11, 3.4.21, 3.3.18.

• April 29, 2021: Postfix stable release 3.6.0.

• April 11, 2021: Postfix stable release 3.5.10 and legacy releases 3.4.20, postfix-3.3.17, 3.2.22.

• January 17, 2021: Postfix stable release 3.5.9 and legacy releases 3.4.19, 3.3.16, 3.2.21.

2020

• November 7, 2020: Postfix stable release 3.5.8 and legacy releases 3.4.18, 3.3.15, 3.2.20.

• August 30, 2020: Postfix stable release 3.5.7 and legacy release 3.4.17.

• July 26, 2020: Postfix stable release 3.5.6 and legacy releases 3.4.16, 3.3.14, 3.2.19.

• July 24, 2020: Postfix stable release 3.5.5 and legacy releases 3.4.15, 3.3.13, 3.2.18.

• June 27, 2020: Postfix stable release 3.5.4 and legacy releases 3.4.14, 3.3.12, 3.2.17.

• June 14, 2020: Postfix stable release 3.5.3 and legacy releases 3.4.13, 3.3.11, 3.2.16.

• May 16, 2020: Postfix stable release 3.5.2 and legacy releases 3.4.12, 3.3.10, 3.2.15.

• April 18, 2020: Postfix stable release 3.5.1 and legacy releases 3.4.11, 3.3.9, 3.2.14.

• March 16, 2020: Postfix stable release 3.5.0.

• March 12, 2020: Postfix legacy releases 3.4.10, 3.3.8, 3.2.13.

• February 3, 2020: Postfix stable release 3.4.9 and legacy releases 3.3.7, 3.2.12, 3.1.15.

2019

• November 24, 2019: Postfix stable release 3.4.8.

• September 22, 2019: Postfix stable release 3.4.7 and legacy releases 3.3.6, 3.2.11, 3.1.14.

• June 29, 2019: Postfix stable release 3.4.6 and legacy releases 3.3.5, 3.2.10, 3.1.13.

• March 30, 2019: Postfix stable release 3.4.5 and legacy releases 3.3.4, 3.2.9, 3.1.12.

• March 14, 2019: Postfix stable release 3.4.4.

• March 10, 2019: Postfix stable release 3.4.3.

• March 10, 2019: Postfix stable release 3.4.2.

• March 7, 2019: Postfix stable release 3.4.1.

• February 27, 2019: Postfix stable release 3.4.0.

• February 26, 2019: Postfix legacy releases 3.3.3, 3.2.8, 3.1.11, 3.0.15.

2018

• November 24, 2018: Postfix stable release 3.3.2, and legacy releases 3.2.7, 3.1.10, 3.0.14.

• May 20, 2018: Postfix stable release 3.3.1, and legacy releases 3.2.6, 3.1.9, 3.0.13.

• February 21, 2018: Postfix stable release 3.3.0.

• January 28, 2018: Postfix stable release 3.2.5, and legacy releases 3.1.8, 3.0.12, and 2.11.11.

2017

• October 28, 2017: Postfix stable release 3.2.4, and legacy releases 3.1.7 and 3.0.11.

• September 24, 2017: Postfix stable release 3.2.3.

• June 13, 2017: Postfix stable release 3.2.2 and legacy releases 3.1.6, 3.0.10 and 2.11.10.

• February 28, 2017: Postfix stable release 3.2.0.

• January 1, 2017: Postfix stable release 3.1.4 and legacy releases 3.0.8, 2.11.9.

2016

• October 1, 2016: Postfix stable release 3.1.3 and legacy release 3.0.7.

• August 28, 2016: Postfix stable release 3.1.2 and legacy release 3.0.6.

• May 15, 2016: Postfix stable release 3.1.1 and legacy releases 3.0.5, 2.11.8, and 2.10.10.

• February 24, 2016: Postfix stable release 3.1.0.

• February 21, 2016: Postfix legacy release 3.0.4.

2015

• October 10, 2015: Postfix stable release 3.0.3 and legacy releases 2.11.7, 2.10.9, and 2.9.15.

• July 20, 2015: Postfix stable release 3.0.2 and legacy releases 2.11.6, 2.10.8, and 2.9.14.

• April 12, 2015: Postfix stable release 3.0.1 and legacy releases 2.11.5, 2.10.7, and 2.9.13.

• February 8, 2015: Postfix stable release 3.0.0.

• February 8, 2015: Postfix legacy releases 2.11.4, 2.10.6, 2.9.12, and 2.8.20.

2014

• October 19, 2014: Postfix stable release 2.11.3 and legacy releases 2.10.5, 2.9.11, and 2.8.19.

• October 13, 2014: Postfix stable release 2.11.2 and legacy releases 2.10.4, 2.9.10, and 2.8.18.

• May 7, 2014: Postfix stable release 2.11.1.

• January 16, 2014: Postfix legacy releases 2.10.3, 2.9.9, 2.8.17, and 2.7.16.

• January 15, 2014: Postfix stable release 2.11.0.

2013

• September 5, 2013: Postfix stable release 2.10.2, and legacy releases 2.9.8, 2.8.16, 2.7.15.

• June 22, 2013: Postfix stable release 2.10.1, and legacy releases 2.9.7, 2.8.15, 2.7.14.

• February 11, 2013: Postfix stable release 2.10.0.

• February 4, 2013: Postfix stable release 2.9.6 and legacy releases 2.8.14, 2.7.13, 2.6.19.

2012

• December 13, 2012: Postfix stable release 2.9.5 and legacy releases 2.8.13, 2.7.12, 2.6.18.

• August 1, 2012: Postfix stable release 2.9.4 and legacy releases 2.8.12, 2.7.11, 2.6.17.

• May 20, 2012: Postfix stable release 2.9.3 and legacy releases 2.8.11, 2.7.10, 2.6.16.

• April 24, 2012: Postfix stable release 2.9.2 and legacy releases 2.8.10, 2.7.9, 2.6.15.

• March 5, 2012: Postfix legacy release 2.8.9.

• February 18, 2012: Postfix stable release 2.9.1.

• February 6, 2012: Postfix legacy release 2.7.8, 2.6.14 and 2.5.17.

• February 1, 2012: Postfix stable release 2.9.0.

• February 1, 2012: Postfix legacy release 2.8.8.

2011

• November 7, 2011: Postfix stable release 2.8.7.

• October 24, 2011: Postfix stable release 2.8.6, 2.7.7, 2.6.13, 2.5.16.

• September 3, 2011: Postfix stable release 2.8.5, 2.7.6, 2.6.12, 2.5.15.

• July 11, 2011: Postfix legacy releases 2.7.5, 2.6.11 and 2.5.14.

• July 7, 2011: Postfix stable release 2.8.4.

• May 9, 2011: Postfix 2.8.3, 2.7.4, 2.6.10 and 2.5.13.

• March 21, 2011: Postfix stable release 2.8.2.

• March 7, 2011: Postfix legacy releases 2.7.3, 2.6.9, 2.5.12 and 2.4.16.

• February 22, 2011: Postfix stable release 2.8.1.

• January 20, 2011: Postfix stable release 2.8.0.

2010

• November 23, 2010: Stable/legacy release Postfix 2.7.2, 2.6.8, 2.5.11, and 2.4.15.

• June 8, 2010: Stable release Postfix 2.7.1.

• June 8, 2010: Legacy release Postfix 2.6.7.

• March 23, 2010: Legacy releases Postfix 2.6.6, 2.5.10 and 2.4.14.

• February 13, 2010: Stable release Postfix 2.7.0.

2009

• August 28, 2009: Stable release Postfix 2.6.5.

• August 28, 2009: Legacy releases Postfix 2.5.9, 2.4.13 and 2.3.19.

• August 26, 2009: Stable release Postfix 2.6.4 (withdrawn).

• August 28, 2009: Legacy releases Postfix 2.5.8, 2.4.12 and 2.3.18 (withdrawn).

• August 2, 2009: Stable release Postfix 2.6.3 (not announced).

• June 3, 2009: Stable release Postfix 2.6.2.

• May 19, 2009: Stable release Postfix 2.6.1.

• May 12, 2009: Stable release Postfix 2.6.0.

• May 12, 2009: Legacy releases Postfix 2.5.7, Postfix 2.4.11, and Postfix 2.3.17.

• Jan 3, 2009: Stable release Postfix 2.5.6.

• Jan 3, 2009: Legacy releases Postfix 2.4.10 and Postfix 2.3.16.

2008

• Sep 2, 2008: Postfix Linux-only local denial of service. This coincides with the legacy release Postfix 2.4.9, the stable release Postfix 2.5.5, and the experimental release Postfix 2.6-20080902.

• Aug 14, 2008: Postfix local privilege escalation via hardlinked symlinks. This coincides with the legacy releases Postfix 2.3.15 and Postfix 2.4.8, the stable release Postfix 2.5.4, and the experimental release Postfix 2.6-20080814.

• Jul 27, 2008: Stable release Postfix 2.5.3.

• Mar 8, 2008: Not announced: stable release Postfix 2.5.2.

• Feb 18, 2008: Legacy releases Postfix 2.4.7 and Postfix 2.3.14.

• Feb 18, 2008: Stable release Postfix 2.5.1.

• Jan 24, 2008: Stable release Postfix 2.5.0.