Qt 6.5 · Version Status
Qt 6.5 End of Life Date
Qt 6.5 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
⚠
Qt 6.5 is past end of life. This version no longer receives security patches. 943 days past EOL — migrate to a supported version immediately.
EOL Date
Oct 9, 2023
943 days past EOL
Latest Release
6.5.8
LTS release
Release Date
Mar 31, 2023
Qt 6.5 series
| Version | Latest | EOL Date | Status |
|---|
| 4.8 LTS |
4.8.7 |
Dec 31, 2015 |
EOL |
| 5.6 LTS |
5.6.3 |
Mar 16, 2019 |
EOL |
| 5.9 |
5.9.9 |
May 31, 2020 |
EOL |
| 5.12 LTS |
5.12.12 |
Dec 5, 2021 |
EOL |
| 5.13 |
5.13.2 |
Jun 19, 2020 |
EOL |
| 5.14 |
5.14.2 |
Dec 12, 2020 |
EOL |
| 5.15 LTS |
5.15.17 |
Dec 8, 2020 |
EOL |
| 6.0 |
6.0.4 |
May 5, 2021 |
EOL |
What does Qt 6.5 end of life mean?
When Qt 6.5 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Qt 6.5 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to a supported version or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Qt 6.5 reach end of life?
Qt 6.5 reached end of life on October 9, 2023. This version is no longer receiving security patches.
Is Qt 6.5 still supported?
No. Qt 6.5 reached end of life on October 9, 2023 and is no longer receiving security patches.
What should I upgrade to from Qt 6.5?
What are the security risks of running Qt 6.5 past EOL?
When Qt 6.5 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Qt should migrate immediately or implement compensating controls.