Finding an official Qt 5.15.2 offline installer can be tricky because Qt changed its distribution model starting with version 5.15. Official offline installers for this specific version are generally reserved for commercial license holders.
Commercial licensees: get all 5.15.x patch releases via maintenance tool.
As of the release of Qt 6, The Qt Company changed their distribution model for Long Term Support (LTS) releases. Qt 5.15.2 is an LTS release.
g++, make, libgl1-mesa-dev, libxcb* dev packages:qmake --version
# Expected output: "Using Qt version 5.15.2 in /path/to/Qt"
Features of Qt 5.15.2
Finding an official Qt 5.15.2 offline installer can be tricky because Qt changed its distribution model starting with version 5.15. Official offline installers for this specific version are generally reserved for commercial license holders.
Commercial licensees: get all 5.15.x patch releases via maintenance tool. qt 5152 offline installer
As of the release of Qt 6, The Qt Company changed their distribution model for Long Term Support (LTS) releases. Qt 5.15.2 is an LTS release. Finding an official Qt 5
g++, make, libgl1-mesa-dev, libxcb* dev packages:qmake --version
# Expected output: "Using Qt version 5.15.2 in /path/to/Qt"
Features of Qt 5.15.2