Qt
Qt is a widget toolkit for creating graphical user interfaces as well as native cross-platform applications that supports Linux, Windows, macOS, Android and embedded systems. It is available under both commercial licenses and open-source GPL 2.0, GPL 3.0, and LGPL 3.0 licenses. The KDE Project maintains a patch collection to support Qt 5.15 LTS for open-source users. Moreover, the code of commercial releases is made open within 12 months and some level of security support still seems to continue in the form of code patches. This does not reflect in the table above as we only track official releases from
| Release | Release Date | Core Support | Extended Support | Latest |
|---|---|---|---|---|
| 6.9 | Apr 02, 2025 (17 days ago) | Oct 02, 2025 (5 months from now) | Apr 02, 2026 (11 months from now) | 6.9.0 (Apr 02, 2025) |
| 6.8 (LTS) | Oct 07, 2024 (6 months ago) | Apr 02, 2025 (17 days ago) | Oct 08, 2029 (4 years from now) | 6.8.3 (Mar 26, 2025) |
| 6.7 | Mar 28, 2024 (1 year ago) | Oct 07, 2024 (6 months ago) | Apr 02, 2025 (17 days ago) | 6.7.3 (Sep 27, 2024) |
| 6.6 | Oct 09, 2023 (1 year ago) | Apr 02, 2024 (1 year ago) | Oct 09, 2024 (6 months ago) | 6.6.3 (Mar 26, 2024) |
| 6.5 (LTS) | Mar 31, 2023 (2 years ago) | Oct 09, 2023 (1 year ago) | Mar 31, 2026 (11 months from now) | 6.5.8 (Dec 13, 2023) |
| 6.4 | Sep 28, 2022 (2 years ago) | Mar 31, 2023 (2 years ago) | Sep 28, 2023 (1 year ago) | 6.4.3 (Mar 16, 2023) |
| 6.3 | Apr 11, 2022 (3 years ago) | Sep 28, 2022 (2 years ago) | Apr 11, 2023 (2 years ago) | 6.3.2 (Sep 08, 2022) |
| 6.2 (LTS) | Sep 30, 2021 (3 years ago) | Apr 11, 2022 (3 years ago) | Sep 30, 2024 (6 months ago) | 6.2.4 (Mar 16, 2022) |
| 6.1 | May 05, 2021 (4 years ago) | Sep 30, 2021 (3 years ago) | May 05, 2022 (3 years ago) | 6.1.3 (Aug 31, 2021) |
| 6.0 | Dec 08, 2020 (4 years ago) | May 05, 2021 (4 years ago) | Dec 08, 2021 (3 years ago) | 6.0.4 (May 03, 2021) |
| 5.15 (LTS) | May 25, 2020 (4 years ago) | Dec 08, 2020 (4 years ago) | May 25, 2025 (1 month from now) | 5.15.2 (Nov 13, 2020) |
| 5.14 | Dec 11, 2019 (5 years ago) | Dec 12, 2020 (4 years ago) | 5.14.2 (Mar 30, 2020) | |
| 5.13 | Jun 18, 2019 (5 years ago) | Jun 19, 2020 (4 years ago) | 5.13.2 (Oct 28, 2019) | |
| 5.12 (LTS) | Dec 04, 2018 (6 years ago) | Dec 05, 2021 (3 years ago) | 5.12.12 (Nov 25, 2021) | |
| 5.9 | May 29, 2017 (8 years ago) | May 31, 2020 (4 years ago) | 5.9.9 (Dec 16, 2019) | |
| 5.6 (LTS) | Mar 15, 2016 (9 years ago) | Mar 16, 2019 (6 years ago) | 5.6.3 (Sep 20, 2017) | |
| 4.8 (LTS) | Dec 15, 2011 (13 years ago) | Dec 31, 2015 (9 years ago) | 4.8.7 |
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