Silverstripe End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all Silverstripe versions. Data from endoflife.date, checked against the vendor's own lifecycle pages where we have read them (share on /accuracy). Updated at every deploy.
Silverstripe 6.3 is supported until October 31, 2027, its end-of-support date. Active support for Silverstripe 6.3 ends on April 30, 2027; security fixes continue until that end-of-life date. The next Silverstripe version to reach end of life is 6.2, on April 29, 2027. 15 of 18 tracked Silverstripe versions are past end of life; the most recent to reach it, 6.1, did so on October 18, 2026. The full Silverstripe 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 |
|---|---|---|---|---|---|
| 2.3 | 2.3.13 | Feb 23, 2009 | Not published | Past EOL | EOL |
| 2.4 | 2.4.13 | Feb 2, 2011 | Mar 31, 2015 | 4239 days past EOL | EOL |
| 3.0 | 3.0.14 | Jun 28, 2012 | Oct 12, 2015 | 4044 days past EOL | EOL |
| 3.1 | 3.1.21 | Oct 1, 2013 | Dec 31, 2016 | 3598 days past EOL | EOL |
| 3.7 | 3.7.5 | Jun 8, 2018 | Sep 30, 2021 | 1864 days past EOL | EOL |
| 4.10 | 4.10.0 | Jan 27, 2022 | Dec 31, 2022 | 1407 days past EOL | EOL |
| 4.11 | 4.11.2 | Jun 28, 2022 | May 19, 2023 | 1268 days past EOL | EOL |
| 4.12 | 4.12.1 | Dec 19, 2022 | Oct 26, 2023 | 1108 days past EOL | EOL |
| 4.13 | 4.13.0 | Apr 26, 2023 | Jun 10, 2025 | 515 days past EOL | EOL |
| 5.0 | 5.0.0 | May 8, 2023 | Apr 17, 2024 | 934 days past EOL | EOL |
| 5.1 | 5.1.0 | Oct 17, 2023 | Oct 17, 2024 | 751 days past EOL | EOL |
| 5.2 | 5.2.0 | Apr 15, 2024 | May 5, 2025 | 551 days past EOL | EOL |
| 5.3 | 5.3.0 | Nov 4, 2024 | Oct 11, 2025 | 392 days past EOL | EOL |
| 5.4 | 5.4.0 | Apr 10, 2025 | Apr 30, 2027 | 174 days remaining | Warning |
| 6.0 | 6.0.0 | Jun 10, 2025 | Apr 14, 2026 | 207 days past EOL | EOL |
| 6.1 | 6.1.0 | Oct 13, 2025 | Oct 18, 2026 | 20 days past EOL | EOL |
| 6.2 | 6.2.0 | Apr 17, 2026 | Apr 29, 2027 | 173 days remaining | Warning |
| 6.3 | 6.3.0 | Oct 28, 2026 | Oct 31, 2027 | 358 days remaining | Active |
Live EOL badge for your README — updates automatically at every build.
[](https://endoflife.ai/silverstripe)
Silverstripe release and support pattern
Across the 18 release lines with a published release date, Silverstripe has shipped a new line roughly every 6 months (median interval). A line typically stays supported for about 1 year from its release to its end-of-life date (measured on the 17 lines with both dates published).
Of the 18 release lines tracked, 15 are past end of life and 3 are still within support; 1 is marked end of life without a published date. The newest line, 6.3, was released October 28, 2026. The next scheduled end of life is 6.2 on April 29, 2027 — 172 days from this build. The longest-supported line currently published is 6.3, to October 31, 2027.
Computed from the tracked release data at every build — the figures above are the dates in the table, restated, not an editorial estimate.
What does Silverstripe end of life mean for your organization?
When a version of Silverstripe 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 Silverstripe 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 Silverstripe 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, check whether the vendor or a third party sells extended support with security patches for your Silverstripe version; coverage varies by product and version. Where it exists it is a bridge, not a permanent solution — plan your migration in parallel.
Silverstripe has 15 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 Silverstripe 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."