Qt 5.15 (LTS)
5.15.17
Release notes ↗
Is Qt 5.15 (LTS) still supported?
No
Qt 5.15 (LTS) reached end of life on Dec 8, 2020 (5 years ago). It no longer gets updates, including security fixes. Upgrade to Qt 6.12 (LTS) (latest 6.12.0), supported until Apr 1, 2027.
- Released
- May 25, 2020
- End of life
- Dec 8, 2020
5 years ago - Commercial support ended
- May 25, 2025
1 year ago - Latest version
- 5.15.17
May 22, 2025
Upgrade path
The recommended upgrade is Qt 6.12 (LTS), currently at 6.12.0 and supported until Apr 1, 2027.
Quick answers
- Is Qt 5.15 (LTS) still supported?
- No. Qt 5.15 (LTS) reached end of life on Dec 8, 2020 (5 years ago). It no longer gets updates, including security fixes. Upgrade to Qt 6.12 (LTS) (latest 6.12.0), supported until Apr 1, 2027.
- When is Qt 5.15 (LTS) end of life?
- Qt 5.15 (LTS) reached end of life on Dec 8, 2020. It gets no more updates, including security fixes.
- What is the latest version of Qt 5.15 (LTS)?
- The latest Qt 5.15 (LTS) release is 5.15.17, released on May 22, 2025.
- When was Qt 5.15 (LTS) released?
- Qt 5.15 (LTS) was released on May 25, 2020.
- What should I upgrade Qt 5.15 (LTS) to?
- The recommended upgrade is Qt 6.12 (LTS), currently at 6.12.0 and supported until Apr 1, 2027.
- How do I check which Qt version I have?
- Run
qmake --version, then paste the result into the “Am I up to date?” box on this page.
Other Qt branches
All 20 →Qt 5.15 release history
RSSRelease dates for 4 Qt 5.15 versions, newest first.
- 5.15.17
- 5.15.2
- 5.15.1
- 5.15.0
Keep track
Official release policy · Checked 4 hours ago