Question 1

What happens when Concrete Cms reaches end of life?

Accepted Answer

When Concrete Cms reaches end of life, it stops receiving security patches, bug fixes, and new features. Currently, 3 Concrete Cms versions are already EOL. The latest supported version is Concrete Cms 9. Running an EOL version exposes your systems to unpatched security vulnerabilities with no official fix available.

Question 2

Is Concrete Cms 9 still supported?

Accepted Answer

Yes. Concrete Cms 9 is actively supported. It receives security patches and bug fixes. Check the version table above for the full list of supported Concrete Cms releases and their exact end-of-life dates.

Question 3

Is it safe to use Concrete Cms after end of life?

Accepted Answer

No. Running Concrete Cms after EOL is not safe for production systems. Once a version reaches end of life, newly discovered CVEs are published publicly but never patched — leaving your systems permanently exposed. The only safe path is upgrading to an actively supported Concrete Cms release.

Question 4

How to upgrade from Concrete Cms 8 to Concrete Cms 9.x?

Accepted Answer

To upgrade Concrete Cms from 8 to 9: (1) review the official migration guide for breaking changes, (2) test your application against the new version in a staging environment, (3) update dependencies that have version constraints, (4) run your full test suite, (5) deploy with a rollback plan. The earlier you start, the more time you have to resolve compatibility issues before EOL.

Question 5

When is the next Concrete Cms LTS version?

Accepted Answer

Not all Concrete Cms releases have a designated LTS status. Check the version table above — LTS releases are marked with an "LTS" badge. Refer to the official Concrete Cms release policy for information on upcoming long-term support versions.

Question 6

How long does Concrete Cms support each version?

Accepted Answer

On average, Concrete Cms supports each release for approximately 82 months (~6.8 years).  The exact EOL date for each version is listed in the table above.

Version	Released	Active support	EOL date	Until EOL	Latest	CVEs	Status
9	Oct 29, 2021	—	No	—	9.5.1	—	Active
8	Dec 1, 2016	—	Aug 5, 2025	308d ago	8.5.21	—	EOL
5.7	Sep 12, 2014	—	Oct 23, 2019	2421d ago	5.7.5.13	—	EOL
5.6	Aug 26, 2012	—	Feb 26, 2019	2660d ago	5.6.4.0	—	EOL

Concrete Cms End of Life Dates

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