Question 1

What happens when Ckeditor reaches end of life?

Accepted Answer

When Ckeditor reaches end of life, it stops receiving security patches, bug fixes, and new features. Currently, 1 Ckeditor version is already EOL. The latest supported version is Ckeditor 5. Running an EOL version exposes your systems to unpatched security vulnerabilities with no official fix available.

Question 2

Is Ckeditor 5 still supported?

Accepted Answer

Yes. Ckeditor 5 is actively supported. It receives security patches and bug fixes. Check the version table above for the full list of supported Ckeditor releases and their exact end-of-life dates.

Question 3

Is it safe to use Ckeditor after end of life?

Accepted Answer

No. Running Ckeditor 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 Ckeditor release.

Question 4

How to upgrade from Ckeditor 4 to Ckeditor 5.x?

Accepted Answer

To upgrade Ckeditor from 4 to 5: (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 Ckeditor LTS version?

Accepted Answer

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

Question 6

How long does Ckeditor support each version?

Accepted Answer

On average, Ckeditor supports each release for approximately 129 months (~10.8 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
5	Apr 25, 2018	—	No	—	48.0.1	—	Active
4 LTS	Nov 23, 2012	—	Jun 30, 2023	1075d ago	4.25.1	—	EOL

Ckeditor End of Life Dates

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