HSQLDB End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all HSQLDB versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
HSQLDB 2.7 is supported, with no end-of-life or end-of-support date announced yet. The full HSQLDB lifecycle, with every version's release and end-of-support date, is in the table below.
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HSQLDB lifecycle status — the real story
HSQLDB (HyperSQL Database), the embedded and server-mode relational database written in Java (hsqldb.org, Maven coordinates org.hsqldb:hsqldb); one line per minor version, 2.5, 2.6 and 2.7. Release days are the Maven Central publish dates from repo1.maven.org/maven2/org/hsqldb/hsqldb, the directory listing and maven-metadata.xml agreeing on both ends of every line. The project's own change list dates each version a few weeks before its Maven Central publish day; the registry day is what is served, as for the other Java libraries on this site. 2.7 is the current line and carries the latest release.
End-of-life rule: the project publishes no support policy, no supported-versions list and no end-of-support dates, and hsqldb.org states only that commercial support is available from HyperXtremeSQL. No line is therefore marked end-of-life and no end date is shown; every line is served as in service with no date until the project publishes one. In practice fixes ship only in the newest release: for CVE-2022-41853, the remote code execution flaw in processing untrusted input through java.sql.Statement or java.sql.PreparedStatement, NVD lists every version before 2.7.1 as affected (cpe:2.3:a:hsqldb:hypersql_database, versionEndExcluding 2.7.1; read 2026-10-07), so the last 2.6 and 2.5 releases carry it unfixed.
Commercial context: HeroDevs Never-Ending Support covers HSQLDB 2.5.x (docs.herodevs.com/hsqldb, NES for HSQLDB, Maven coordinates org.hsqldb:hsqldb, NES version 2.5.2-hsqldb-2.5.4 on the HeroDevs registry; the release notes list 2.5.3 as the initial supported baseline and 2.5.4 as the release addressing CVE-2022-41853; verified at docs.herodevs.com 2026-10-07). That is a paid offering for the 2.5 line; it is not a project release and its builds are not published to Maven Central.
HSQLDB release and support pattern
Across the 3 release lines with a published release date, HSQLDB has shipped a new line roughly every 1.6 years (median interval).
Of the 3 release lines tracked, 0 are past end of life and 3 are still within support. The newest line, 2.7, was released July 26, 2022. No end-of-life date is currently published for the 3 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 HSQLDB end of life mean for your organization?
When a version of HSQLDB 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 HSQLDB 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 HSQLDB 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 HSQLDB versions. This is a bridge, not a permanent solution — plan your migration in parallel.
When HSQLDB versions reach end of life, security patches stop — the CVEs keep coming. The good news: extended support for HSQLDB exists — vetted vendors ship security patches for years past the official date. Right now that coverage spans HSQLDB 2.5. Tell us where to reach you and we'll reply with matched options and pricing guidance — or an honest "no vendor covers this."