If you require this specific version for an open-source project, follow these steps: Install Qt creator 5.15.2 - Qt Forum

allows for deployment in secure or air-gapped workstations where online installers would fail. Access and Installation Official Archive : It can be found on the Qt Archive

If you are considering this build but don't strictly need 5152 , consider these alternatives:

: Beginning with Qt 5.15.0, The Qt Company modified its software distribution model. Open-source offline installers were permanently discontinued.

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If you want to get this development environment running, tell me:

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