Qt 6.10 Standard Support Ends October 7, 2026: What Qt's Table Says
Standard support for Qt 6.10 ends on October 7, 2026. That is the date in The Qt Company's own supported-versions table, and it follows Qt's rule that each minor version gets one year of standard support from its release: 6.10.0 shipped on October 7, 2025. Qt publishes two other dates worth knowing this autumn: Qt 6.11 has standard support until March 17, 2027, and Qt 6.8 LTS until October 8, 2029.
Qt's supported versions, as Qt lists them
| Version | Released | Standard support until | Open-source patch releases |
|---|---|---|---|
| Qt 6.11 | 2026-03-23 | 2027-03-17 | Continue until Qt 6.12 is released (not yet released at the time of writing) |
| Qt 6.10 | 2025-10-07 | 2026-10-07 | Stopped when 6.11.0 shipped, 2026-03-23 |
| Qt 6.9 | 2025-04-02 | Ended; Extended Support available | Stopped when 6.10.0 shipped |
| Qt 6.8 LTS | 2024-10-07 | 2029-10-08 | Initial patch releases only; later LTS patch releases are commercial |
The middle column is Qt's own "Standard support until" figure. Qt marks the older non-LTS lines simply as ended, with Extended Support available, and this page prints no date where Qt prints none.
The three rules behind the dates
One year of standard support. Qt states that under standard support conditions each minor version of Qt is supported for one year, starting from the date of the minor release. Qt 6.10.0 on October 7, 2025 gives October 7, 2026. Qt 6.11.0 on March 23, 2026 gives a table date of March 17, 2027, a few days short of the arithmetic; the table wins, and that is the date served here.
Five years for LTS. Since Qt 6.8, every fourth minor version is an LTS version and, starting with 6.8.0, LTS versions are supported for five years. Qt also notes that immediate access to LTS patch releases is limited to commercial customers, while the initial patch releases of an LTS version are available to open-source users too.
Open-source patch releases stop at the next minor. For each minor release Qt typically provides two or three patch releases until the next minor release of Qt is out. That is why Qt 6.10's open-source patch stream ended on March 23, 2026, the day 6.11.0 was published, and why 6.11's continues until 6.12 appears.
Extended Support
Once standard support expires, Qt offers Extended Support (ES) for the versions in its table, and Extended Security Maintenance for 6.5 LTS and 5.15 LTS. Qt also states that even longer support can be negotiated individually. For an open-source user there is no equivalent: an application on Qt 6.10 after October 7, 2026 either moves to 6.11 (or the 6.8 LTS line under a commercial licence) or carries whatever is found in 6.10.3 unpatched.
What to do by October 7
- Open-source projects on 6.10: you have been off the patch stream since March; move to 6.11.x now. Source compatibility within Qt 6 is Qt's stated promise, so a minor bump is usually a rebuild plus deprecation fixes.
- Commercial licence holders on 6.10: standard support ends October 7. Either move to 6.11 (supported to March 17, 2027), plan for the next LTS, or take Extended Support for 6.10 from Qt.
- Long-lived products: Qt 6.8 LTS runs to October 8, 2029 and is the line Qt itself recommends for bigger applications; its later patch releases need a commercial licence.
- Inventory: the Qt product page carries every 6.x and 5.x line with its live score, and
curl https://api.endoflife.ai/v1/score/qt/6.10returns the dates with their source.
Frequently asked questions
When does Qt 6.10 support end?
Standard support for Qt 6.10 ends on October 7, 2026, according to The Qt Company's supported-versions table. That is the commercial support window: one year from the 6.10.0 release on October 7, 2025. For open-source users, Qt's rule is that patch releases for a minor version continue until the next minor is out, so 6.10 patch releases stopped when Qt 6.11.0 shipped on March 23, 2026.
Is Qt 6.11 still supported?
Yes. Qt's table lists standard support for Qt 6.11 until March 17, 2027. Open-source patch releases for 6.11 continue until Qt 6.12 is released, which had not happened at the time of writing.
How long is Qt 6.8 LTS supported?
Qt 6.8 LTS is supported until October 8, 2029: five years from its release, which is Qt's rule for LTS versions from 6.8 onward. The initial 6.8 patch releases were available to open-source users; later LTS patch releases are available to commercial licence holders, as Qt's table marks them.
Sources
- The Qt Company, "Qt Releases" (doc.qt.io/qt-6/qt-releases.html): release schedules, Long-Term Support releases, commercial support, supported versions, Extended Support.
- The Qt Company release posts: Qt 6.10 released (October 7, 2025), Qt 6.11 released (March 23, 2026).
Related
- Qt product page — every version with its live score
- Extended support vendors — who supports what after the vendor stops
- How we verify our dates