Legacy Qt Builds

The Qt Calíope is free software under the GNU GPL, version 3 or later, and the builds on this page are distributed under that licence. Each package above is the source of the builds next to it, taken from the Qt program's repository at the commit each one was built from. I matched every executable on this page to its commit without rebuilding anything: by the build time recorded in its installer, by the version string compiled into it, and by the text it contains. Two builds carry a date that is not the day they were built: the Linux and Windows 20251201 builds were made on 12 December 2025, and the macOS 20260220 build on 13 March 2026. One package is the closest source there is rather than a proven exact match: the one for the Linux 20260120 build, which reports a version number that was never committed; its README says what is known and what is not. Each package contains the full licence text in LICENSE, the third-party notices, and a README with the commit it comes from and how it was identified. The precompiled libraries that the original tree carried are not included. They are published as a historical archive: they are not maintained, they receive no fixes, and nobody answers questions about them.