This section of the Wiki contains information on Qt3 and any required patches
The last official release of Qt3 from Trolltech is 3.3.8b. This release is available for licensing under the QPL, Qt commercial license, or GPL v2/v3.
Version 3.3.8b is compatible with Trinity source SVN revisions less than or equal to 1214094.
Trinity now requires a patched version, 3.3.8c. This patched version is fully source and binary compatible with 3.3.8b, but provides additional methods that are required to complete the TQt interface.
The following patch, when applied to 3.3.8b, will increase the version number to 3.3.8c: