Question 1

What happens when Neos reaches end of life?

Accepted Answer

When Neos reaches end of life, it stops receiving security patches, bug fixes, and new features. Currently, 4 Neos versions are already EOL. The latest supported version is Neos 9.1, maintained until April 1, 2028. Running an EOL version exposes your systems to unpatched security vulnerabilities with no official fix available.

Question 2

Is Neos 9.1 still supported?

Accepted Answer

Yes. Neos 9.1 is actively supported until April 1, 2028. It receives security patches and bug fixes. Check the version table above for the full list of supported Neos releases and their exact end-of-life dates.

Question 3

Is it safe to use Neos after end of life?

Accepted Answer

No. Running Neos 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 Neos release.

Question 4

How to upgrade from Neos 8.2 to Neos 9.x?

Accepted Answer

To upgrade Neos from 8.2 to 9.1: (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 Neos LTS version?

Accepted Answer

Neos 8.4 is the current Long Term Support release, maintained until September 1, 2027. LTS versions are recommended for production deployments that prioritize long-term stability over new features. Plan your upgrades to coincide with LTS releases whenever possible.

Question 6

How long does Neos support each version?

Accepted Answer

On average, Neos supports each release for approximately 35 months (~2.9 years). LTS releases like Neos 8.4 have extended support windows — maintained until September 1, 2027. The exact EOL date for each version is listed in the table above.

Version	Released	Active support	EOL date	Until EOL	Latest	CVEs	Status
9.1	Dec 17, 2025	Apr 1, 2027	Apr 1, 2028	in 662d	9.1.5	—	Active
8.4 LTS	Oct 10, 2025	Sep 1, 2026	Sep 1, 2027	in 449d	8.4.5	—	Active
9.0	Apr 3, 2025	Apr 1, 2027	Apr 1, 2028	in 662d	9.0.12	—	Active
8.3 LTS	Apr 24, 2023	Sep 1, 2026	Sep 1, 2027	in 449d	8.3.33	—	Active
8.2	Dec 1, 2022	Mar 31, 2024	Mar 31, 2025	435d ago	8.2.14	—	EOL
8.1	Sep 2, 2022	Mar 31, 2024	Mar 31, 2025	435d ago	8.1.14	—	EOL
8.0	Apr 1, 2022	Mar 31, 2024	Mar 31, 2025	435d ago	8.0.19	—	EOL
7.3 LTS	Dec 8, 2021	Mar 31, 2024	Mar 31, 2025	435d ago	7.3.21	—	EOL

Neos End of Life Dates

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