Pigeonhole · Lifecycle Status

Pigeonhole End of Life (EOL) Dates & Support Timeline

Complete end-of-life dates, support windows, and security status for all Pigeonhole versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.

Pigeonhole 2.4.5 is actively supported. No versions approaching EOL in the next 6 months.

Pigeonhole 2.4 is supported, with no end-of-life or end-of-support date announced yet. 4 of 6 tracked Pigeonhole versions are past end of life; the most recent to reach it, 0.4, did so on January 24, 2025. The full Pigeonhole 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 ↓
Latest Active
2.4.5
2.4 series
Next EOL
None upcoming
Active Versions
2
of 6 total
EOL Versions
4
no longer patched
45 / 100
Medium Risk
EOL Risk Score™  How is this calculated? →
EOL Recency
35/40
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build. Methodology →
CPE Identifier
cpe:2.3:a:dovecot:pigeonhole
The Common Platform Enumeration name vulnerability scanners and CVE records use for Pigeonhole. Verified against the NIST CPE dictionary. Machine-readable for all products: cpe-map.json
Package URL (purl)
pkg:github/dovecot/pigeonhole
The package URL identifier SBOM tools emit for Pigeonhole, so a CycloneDX or SPDX component resolves to this page by exact identifier rather than by name. Machine-readable for all products: purl-map.json; whole-SBOM checks: POST /v1/sbom or the Stack Scanner.
Release Cycle Timeline
EOL   Warning   Active   Today
Release cycle timeline 2009201020112012201320142015201620172018201920202021202220232024202520260.10.20.30.40.52.4TODAY
4 versions of Pigeonhole are past end of life — security patches have stopped. Get matched with support →
All Versions
VersionLatest ReleaseRelease DateEOL DateDaysStatus
0.1 0.1.4 Oct 23, 2008 Feb 16, 2012 5333 days past EOL EOL
0.2 0.2.5 Sep 10, 2010 May 9, 2013 4885 days past EOL EOL
0.3 0.3.6 Feb 16, 2012 Dec 24, 2017 3195 days past EOL EOL
0.4 0.4.24.2 May 9, 2013 Jan 24, 2025 607 days past EOL EOL
0.5 0.5.21.1 Dec 24, 2017 TBD Supported Active
2.4 2.4.5 Jan 24, 2025 TBD Supported Active
Pigeonhole EOL status badge Live EOL badge for your README — updates automatically at every build. [![Pigeonhole EOL](https://img.shields.io/endpoint?url=https%3A%2F%2Fendoflife.ai%2Fbadge%2Fpigeonhole.json)](https://endoflife.ai/pigeonhole)

Pigeonhole release and support pattern

Across the 6 release lines with a published release date, Pigeonhole has shipped a new line roughly every 1.9 years (median interval). A line typically stays supported for about 4.6 years from its release to its end-of-life date (measured on the 4 lines with both dates published).

Of the 6 release lines tracked, 4 are past end of life and 2 are still within support. The newest line, 2.4, was released January 24, 2025. No end-of-life date is currently published for the 2 supported lines.

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 Pigeonhole end of life mean for your organization?

When a version of Pigeonhole 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 Pigeonhole 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 Pigeonhole 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.

OptionBest whenWatch 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 Pigeonhole versions. This is a bridge, not a permanent solution — plan your migration in parallel.

endoflife.ai
Get Pigeonhole Support Options

Pigeonhole has 4 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 Pigeonhole 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."

Free · No obligation · Independent — we track the dates, vendors don't pay for placement · Dates verified against vendor sources
Frequently Asked Questions
What is the end-of-life date for Pigeonhole?
See the full table above for all Pigeonhole version EOL dates.
When is the Pigeonhole support end date?
Each Pigeonhole version has its own support end date — see the table above for every version's date.
What is the latest supported version of Pigeonhole?
The latest active version of Pigeonhole is 2.4.5. Always verify against the table above as support windows can change.
What happens when Pigeonhole reaches end of life?
When Pigeonhole reaches end of life, the vendor stops issuing security patches. Any CVEs disclosed after the EOL date accumulate with no vendor patch path — a growing attack surface that a CVE-based scan does not show. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give the date in advance.
How do I check if I'm running an EOL version of Pigeonhole?
Check your current version against the table above. If your version's EOL date has passed, you are running unsupported software. You can also use the endoflife.ai Stack Scanner to check your entire dependency file at once.
Is there extended support available for EOL Pigeonhole versions?
Some vendors offer extended support for EOL software. Contact the original vendor or check with enterprise support providers for options.

Related Products

Upstream dataset: endoflife.date API · endoflife.date · Generated at build time · How we source data →
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