This is not a Wikipedia article: It is an individual user's work-in-progress page, and may be incomplete and/or unreliable.The current/final version of this article may be located at Pale Moon (web browser) now or in the future.
3.6.x versions were Firefox rebuilds without code changes.
4.0
Rebase to gecko/2.0.
4.0.3
4.0.5
4.0.6
4.0.7
5.0
Rebase to gecko/5.0.
6.0
Rebase to gecko/6.0.
6.0.2
7.0
Rebase to gecko/7.0.
7.0.1
8.0
Rebase to gecko/8.0.
9.0.1
Rebase to gecko/9.0.
9.1
Pale Moon is now build using MSVC 10.0.
9.2
11.0
Rebase to gecko/11.0.
11.0.1
12.0
Rebase to gecko/12.0. Starting with this version Pale Moon will stop following Mozilla Firefox rapid release schedule.
12.1
Major update, numerous security and stability fixes.
12.2
12.2.1
12.3
12.3 r2
A 32-bit only build addressing a performance regression.
15.0
Rebase to gecko/15.0. This is the last version supporting Microsoft Windows XP without Service Pack 3.
15.1
15.1.1
15.2
15.2.1
The last version supporting 64-bit variants of Microsoft Windows XP.
15.3
Pale Moon is now build using MSVC 11.0.
15.3.1
November 30, 2012
15.3.2
December 05, 2012
15.4
January 16, 2013
15.4.1
January 28, 2013
19.0
February 22, 2013
Rebase to gecko/19.0.
19.0.1
February 24, 2013
19.0.2
March 09, 2013
20.0.1
April 11, 2013
Rebase to gecko/20.0.
20.1
May 23, 2013
20.2
July 01, 2013
20.2.1
July 08, 2013
20.3
August 13, 2013
24.0
September 13, 2013
Rebase to gecko/24esr.
24.0.1
September 18, 2013
24.0.2
September 27, 2013
24.1.0
November 04, 2013
24.1.1
November 05, 2013
24.1.2
November 19, 2013
24.2.0
November 26, 2013
24.2.1
December 04, 2013
24.2.2
December 11, 2013
24.3.0
January 28, 2014
Intel Atom optimized build introduced. Geo-location provider switched.
24.3.1
January 31, 2014
24.3.2
February 11, 2014
Support for TLS 1.2 introduced. First Pale Moon for Linux release.
24.4.0
March 10, 2014
Default search engine changed to DuckDuckGo.
24.4.1
March 19, 2014
24.4.2
April 02, 2014
Support for OCSP-stapling introduced.
24.5.0
April 25, 2014
24.6.0
June 06, 2014
Rendering engine overhaul. From this version Pale Moon uses its own Sync server.
24.6.1
June 08, 2014
24.6.2
June 16, 2014
24.7.0
July 29, 2014
24.7.1
August 06, 2014
First Pale Moon for Android release.
24.7.2
September 11, 2014
Last version to support Windows XP on non Intel Atom optimized builds.
25.0.0
October 10, 2014
Pale Moon now uses its own UUID. Forked gecko/24esr code base is still being used.
25.0.1
October 15, 2014
25.0.2
October 24, 2014
SSL 3.0 is now disabled by default.
25.1.0
November 11, 2014
25.1.1
November 28, 2014
An Android only update.
25.2.0
January 15, 2015
Improved ES6 draft implementation.
25.2.1
January 27, 2015
25.3.0
March 13, 2015
25.3.1
March 25, 2015
25.3.2
April 25, 2015
25.4.0
May 08, 2015
25.4.1
May 10, 2015
25.5.0
June 10, 2015
25.6.0
July 15, 2015
25.7.0
August 26, 2015
25.7.1
September 28, 2015
25.7.2
October 02, 2015
25.7.3
October 14, 2015
25.7.3.1
October 15, 2015
An Android only update.
25.8.0
November 17, 2015
25.8.1
November 18, 2015
25.2.0
January 15, 2015
26.0.0
January 26, 2016
Layout engine is rebranded to Goanna. Basic support for ES6 Promises and WebP image format implemented. A built-in XSS filter added. Forked gecko/24esr code base is still being used.
26.0.2
February 03, 2016
26.0.3
February 05, 2016
26.1.0
February 16, 2016
26.1.1
February 24, 2016
26.2.0
April 05, 2016
26.2.1
April 08, 2016
26.2.2
April 10, 2016
An Android only version 25.9.2 is released at the same time.
26.3.0
June 21, 2016
26.3.1
June 25, 2016
26.3.2
June 27, 2016
A Microsoft Windows only build.
26.3.3
July 01, 2016
26.4.0
August 17, 2016
26.4.0.1
August 23, 2016
A Linux only build.
26.4.1
September 12, 2016
Triple-DES cipher suites are now disabled by default.
26.5.0
September 28, 2016
This is the last version supporting Microsoft Windows XP.
27.0.0
November 22, 2016
Pale Moon is now based on forked mozilla/38esr platform code. Support for add-on SDK extensions dropped. HTTP/2 implemented. Initial MSE implementation introduced.
27.1.0
February 09, 2017
27.0.1
November 28, 2016
27.0.2
December 02, 2016
27.0.3
December 16, 2016
27.1.0
February 09, 2017
Media back-end reworked, now uses FFmpeg on Linux.
27.1.1
February 21, 2017
27.1.2
March 03, 2017
27.2.0
March 18, 2017
Support for JPEG-XR implemented.
27.2.1
March 24, 2017
27.3.0
April 28, 2017
MSE implementation is now more spec-compliant.
27.4.0
July 12, 2017
MSE implementation is now fully spec-compliant and asynchronous.
27.4.1
August 03, 2017
27.4.2
August 22, 2017
27.4.2.1
August 28, 2017
A Microsoft Windows only portable version build.
27.5.0
September 26, 2017
27.5.1
October 10, 2017
27.6.0
November 07, 2017
27.6.1
November 15, 2017
27.6.2
November 28, 2017
27.7.0
January 15, 2018
27.7.1
January 18, 2018
27.7.2
February 02, 2018
27.8.0
March 02, 2018
Improved TLS 1.3 draft support.
27.8.1
March 06, 2018
27.8.1
March 22, 2018
27.8.3
March 28, 2018
27.9.0
April 17, 2018
27.9.1
May 07, 2018
27.9.2
May 18, 2018
27.9.3
June 12, 2018
27.9.4
July 17, 2018
This is the last version supporting Microsoft Windows Vista.
28.0.0
August 16, 2018
Pale Moon is now based on Unified XUL Platform forked form mozilla/52esr. Nearly complete ES6 support. WebGL2, WASM, CSS Grid and FLAC support introduced.
