Versions

Here you will find a description of the MyBB versioning scheme and release cycle as well as a listing of all MyBB versions released to date.

Versioning System

MyBB uses a 3-number versioning system, MAJOR.MINOR.PATCH.

The first — major — number is incremented when there is a significant change in MyBB's features, behavior, and compatibility.

The second — minor — number indicates new features and potential breaking changes for extensions.

The third — patch — number is incremented every time a security or maintenance update is released. These releases usually will not contain new features, but can be crucial to the security and stability of your forum.

Whatever the version number is, MyBB always urges users to upgrade to the latest version for the highest security of MyBB installations. Even minor patches that seem insignificant could protect from potentially critical security vulnerabilities.

Release Cycle

Series Releases

New series increment the major or minor version number. Usually these will have new features and changes to the database schema, and therefore may break existing forum customizations, such as themes and plugins. They may also contain security vulnerability patches and bug fixes.

In the past, they were called major releases, and odd minor numbers indicated development-only releases.

Patch Releases

The most common patch releases introduce small enhancements, and are produced in response to bug reports and security problems. Customizations (plugins, themes, etc.) generally are compatible across releases within given series.

Security Releases appear to fix any known security holes. Upgrading should be completed as soon as possible, otherwise forum security could be compromised.

Maintenance Releases fix bugs and contain other stability or performance improvements. Upgrading is not as immediately necessary with simple maintenance releases as it is with security releases, but it is recommended and encouraged to upgrade as soon as it is convenient.

Release Insights

Compare the development cycle length and resolved issue numbers in MyBB releases.

Release Insights

Resolved Security Issues

View a list of vulnerabilities addressed in the past.

Resolved Security Issues

Version List

The following is a list of official (public and private) releases of MyBB. Download links for previous versions are provided on this page for older versions for non-production site usage (i.e. porting old modifications, converting to MyBB, and historical curiosity). All administrators are strongly encouraged to use the latest release of MyBB on production forums.

1.8.x series

1.8.37

4 November 2023

Latest Release

Security, Maintenance Release

1.8.36

28 August 2023

Security Release

1.8.35

17 July 2023

Maintenance Release

1.8.34

21 May 2023

Security, Maintenance Release

1.8.33

3 January 2023

Security, Maintenance Release

1.8.32

19 November 2022

Security, Maintenance Release

1.8.31

4 October 2022

Security, Maintenance Release

1.8.30

9 March 2022

Security Release

1.8.29

30 October 2021

Security Release

1.8.28

26 October 2021

Security, Maintenance Release

1.8.27

22 June 2021

Maintenance Release

1.8.26

10 March 2021

Security Release

1.8.25

22 February 2021

Security Release

1.8.24

9 August 2020

Security Release

1.8.23

17 July 2020

Security, Maintenance Release

1.8.22

30 December 2019

Security, Maintenance Release

1.8.21

10 June 2019

Security, Maintenance Release

1.8.20

27 February 2019

Security, Maintenance Release

1.8.19

11 September 2018

Security, Maintenance Release

1.8.18

22 August 2018

Security, Maintenance Release

1.8.17

15 July 2018

Maintenance Release

1.8.16

4 July 2018

Security, Maintenance Release

1.8.15

15 March 2018

Security, Maintenance Release

1.8.14

28 November 2017

Security, Maintenance Release

1.8.13

7 November 2017

Security, Maintenance Release

1.8.12

22 May 2017

Security, Maintenance Release

1.8.11

4 April 2017

Security, Maintenance Release

1.8.10

10 January 2017

Maintenance Release

1.8.9

21 December 2016

Security, Maintenance Release

1.8.8

17 October 2016

Security, Maintenance Release

1.8.7

11 March 2016

Security, Maintenance Release

1.8.6

7 September 2015

Security, Maintenance Release

1.8.5

27 May 2015

Security, Maintenance Release

1.8.4

15 February 2015

Feature, Security, Maintenance Release

1.8.3

20 November 2014

Security Release

1.8.2

13 November 2014

Security Release

1.8.1

23 October 2014

Maintenance Release

1.8.0

1 September 2014

Major Release

Series prior to MyBB 1.8.x are no longer supported

This means there will be no more security or maintenance releases for these series and forums running these versions of MyBB may be at risk of unfixed security issues. All administrators are strongly encouraged to upgrade their forums to the latest release of MyBB as soon as possible.

1.6.x series

1.6.18

7 September 2015

Security Release

1.6.17

27 May 2015

Security Release

1.6.16

20 November 2014

Security Release

1.6.15

4 August 2014

Security, Maintenance Release

1.6.14

30 June 2014

Security, Maintenance Release

1.6.13

26 April 2014

Security, Maintenance Release

1.6.12

30 December 2013

Security, Maintenance Release

1.6.11

8 October 2013

Security, Maintenance Release

1.6.10

22 April 2013

Security, Maintenance Release

1.6.9

15 December 2012

Security Release

1.6.8

27 May 2012

Maintenance Release

1.6.7

1 April 2012

Feature, Security, Maintenance Release

1.6.6

10 February 2012

Security Release

1.6.5

25 November 2011

Feature, Security, Maintenance Release

1.6.4

26 July 2011

Feature, Security, Maintenance Release

1.6.3

17 April 2011

Security Release

1.6.2

22 February 2011

Security, Maintenance Release

1.6.1

15 December 2010

Security, Maintenance Release

1.6.0

3 August 2010

Major Release

1.4.x series

1.4.16

17 April 2011

Security Release

1.4.15

22 February 2011

Maintenance Release

1.4.14

2 August 2010

Maintenance Release

1.4.13

19 April 2010

Security Release

1.4.12

13 April 2010

Security, Maintenance Release

1.4.11

29 December 2009

Security, Minor Maintenance Release

1.4.10

1 December 2009

Maintenance Release

1.4.9

21 September 2009

Security Release

1.4.8

26 June 2009

Security, Maintenance Release

1.4.7

15 June 2009

Security Release

1.4.6

3 May 2009

Security Release

1.4.5

19 April 2009

Security, Maintenance Release

1.4.4

27 November 2008

Security, Maintenance Release

1.4.3

29 October 2008

Security Release

1.4.2

17 September 2008

Security, Maintenance Release

1.4.1

17 August 2008

Security, Maintenance Release

1.4.0

3 August 2008

Major Release

1.2.x series

1.2.14

18 July 2008

Security, Maintenance Release

1.2.13

21 May 2008

Security Release

1.2.12

20 January 2008

Security, Maintenance Release

1.2.11

8 January 2008

Security Release

1.2.10

1 December 2007

Maintenance Release

1.2.9

10 July 2007

Security Release

1.2.8

28 June 2007

Security, Maintenance Release

1.2.7

15 May 2007

Security, Maintenance Release

1.2.6

25 April 2007

Security Release

1.2.5

13 April 2007

Security Release

1.2.4

4 April 2007

Security Release

1.2.3

14 February 2007

Security, Maintenance Release

1.2.2

1 December 2006

Security, Maintenance Release

1.2.1pl1

26 November 2006

Security Patch

1.2.1

27 September 2006

Security, Maintenance Release

1.2.0

2 September 2006

Major Release

1.0x and 1.1.x series

1.1.8

30 August 2006

Security Release

1.1.7

27 July 2006

Security Release

1.1.6

25 July 2006

Security Release

1.1.5

27 June 2006

Security Release

1.1.4

22 June 2006

Security Release

1.1.3

10 June 2006

Security Release

1.1.2

6 May 2006

Security Release

1.1.1

14 April 2006

Security Release

1.1.0

8 March 2006

Security, Maintenance Release

1.04

15 February 2006

Security Release

1.03

31 January 2006

Security Release

1.02

11 January 2006 (Originally released 7 January 2006)

Security Release

1.01

28 December 2005

Security Release

1.0

9 December 2005

Major Release

Preview releases

PR2 Sec.Update

1 November 2005

Security Release

PR2 Rev.686

3 September 2005

Maintenance Release

PR2

30 August 2005

Major Release (included significant updates since RC4)

PR1

March 2005

Private Beta Release

Early development releases

RC4

4 October 2004

Release Candidate 4

RC3

10 July 2004

Release Candiate 3

RC2

22 February 2004

Release Candidate 2

RC1

10 December 2003

Release Candidate 1

Beta 4

August 2003

Beta Release

DevBB

Pre-2003

Predecessor to MyBB

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