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Support timeline table

Silverstripe CMS Support Timline Dec 2021

* Subsequent releases may be created to facilitate security and critical fixes. Refer to the version End of Life table
¹ New features, APIs and enhancements to be applied in the next release 
² Non-critical bugfixes and all security fixes
³ Critical bugfixes and critical security fixes

Minor Version
Full Support Until
Limited Support Until
End of Life
3.5 --- Dec 31 2018 Dec 31 2018
3.6 --- Dec 31 2019 Dec 31 2019
3.7 Apr 30 2018 Ongoing ---
4.0 Mar 31 2018 Mar 31 2019 Mar 31 2019
4.1 Jun 11 2018 Mar 31 2019 Mar 31 2019
4.2 Dec 11 2018 Jun 30 2019 Jun 30 2019
4.3 Jun 30 2019 Dec 31 2019 Dec 31 2019
4.4 Ongoing --- ---

For major releases that are in "Active development" or "Full support", minor versions are released approximately every three months, and their End-of-Life (EOL) is announced at least six months in advance. The latest minor release is supported as long as its underlying major release.

Bug and security fixes are managed differently depending on whether the underlying major release is in “Full support” or “Limited support”. For more information, read our Release Process.

General Principles

Semantic Versioning

Silverstripe CMS 3.2 onward, follows Semantic Versioning, which makes minor release upgrades (e.g. from 4.1 to 4.2) as painless as possible.

Longer versions, regular shorter minor releases 

Silverstripe CMS 3.2 and onward, we support major versions for longer periods of time, with regular minor version releases that are supported for shorter periods.