Kentico End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all Kentico versions. Dates read at the vendor's own lifecycle pages (kentico.com). Updated at every deploy.
Kentico 13.x is supported until December 31, 2026, its end-of-support date. It is also the next Kentico version to reach end of life. 7 of 8 tracked Kentico versions are past end of life; the most recent to reach it, 11.x, did so on November 30, 2021. The full Kentico lifecycle, with every version's release and end-of-support date, is in the table below.
Running an EOL version? Get matched with support options — free ↓| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 6.x | — | — | Nov 24, 2015 | 3980 days past EOL | EOL |
| 7.x | — | — | Nov 30, 2016 | 3608 days past EOL | EOL |
| 8.x | — | — | Dec 11, 2017 | 3232 days past EOL | EOL |
| 9.x | — | — | Nov 27, 2018 | 2881 days past EOL | EOL |
| 10.x | — | — | Oct 29, 2020 | 2179 days past EOL | EOL |
| 11.x | — | — | Nov 30, 2021 | 1782 days past EOL | EOL |
| 12.x | — | — | Not published | Past EOL | EOL |
| 13.x | — | — | Dec 31, 2026 | 75 days remaining | Warning |
Live EOL badge for your README — updates automatically at every build.
[](https://endoflife.ai/kentico)
Kentico lifecycle status — the real story
Kentico is a .NET content management and digital experience platform. Kentico's Product Support Lifecycle Policy prints one date per major version, the end of technical support, and no release dates. For Kentico Xperience 13, Kentico issues releases only in the form of security hotfixes during its final year and then ceases all support, maintenance, updates, hotfixes and repairs, security repairs included. Kentico 12 ended in two steps, a year apart, for its MVC and Portal Engine development models, so no single day is served for it. The newer Xperience by Kentico is supported by release range under a separate policy and is not covered here. Kentico Xperience appears in CISA's Known Exploited Vulnerabilities catalog.
Kentico release and support pattern
Of the 8 release lines tracked, 7 are past end of life and 1 is still within support; 1 is marked end of life without a published date. The next scheduled end of life is 13 on December 31, 2026 — 74 days from this build.
Computed from the tracked release data at every build — the figures above are the dates in the table, restated, not an editorial estimate.
Kentico security intelligence
CISA KEV history: Kentico is named in CISA's Known Exploited Vulnerabilities catalog 4 times, most recently on 2026-04-20. Derived from CISA's live catalog at every build.
What does Kentico end of life mean for your organization?
When a version of Kentico reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: A CVE-based scan does not show the accumulation of unpatched vulnerabilities in EOL software. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no vendor patch is coming. This is one of the most dangerous gaps in enterprise security posture.
Organizations running EOL Kentico should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Your options when Kentico reaches end of life
There are four realistic paths. Which one is right depends far more on how long the system needs to keep running than on the version you are on today.
| Option | Best when | Watch out for |
|---|---|---|
| Move to a supported version | The system will outlive the current version's support window and you can schedule the work | Budget for compatibility testing, not just the upgrade itself — that is where the real cost sits |
| Replace the component | The project is unmaintained, or a better-supported alternative exists | The replacement has its own lifecycle and its own end-of-life date — you are changing vendors, not escaping the problem |
| Buy extended support | Migration is genuinely underway but cannot finish before the deadline, or the workload is frozen by certification or a third-party application | A bridge, not a destination — every year purchased is a year the migration still has to happen |
| Document accepted risk | The system is isolated, short-lived, or scheduled for retirement | Only defensible with real compensating controls and a written decision — auditors treat undocumented end-of-life software as a finding |
How to choose, in one question: how many more years does this system need to run? Under a year, extended support (where it exists) is usually cheaper than an emergency migration. One to three years, migrate — support purchased repeatedly costs more than doing the project once, and the project only gets harder as the version ages. Indefinitely, migrate now and plan the next migration before it surprises you.
Worth saying plainly, because vendors selling extended support rarely will: extended support is often the more expensive choice over a multi-year horizon. It is the right answer when a deadline is genuinely unreachable, not as a default. Compare the annual fee against the one-time cost of migrating before committing to either.
Formalizing decisions like this across your estate? Our free EOL policy template is a ready-to-adopt policy with risk tiers, remediation SLAs, and audit mapping — no signup, free to use and share.
Extended Support Options
If you cannot migrate immediately, extended support vendors provide continued security patches for EOL Kentico versions. This is a bridge, not a permanent solution — plan your migration in parallel.
Kentico has 7 versions past end of life — security patches have stopped, but CVE disclosures haven't. Extended support past the official date exists for many products in this position — whether it exists for Kentico is exactly what we check. Tell us where to reach you and we'll reply with matched options and pricing guidance — or an honest "no vendor covers this."