The LICENSE file just mention LGPL3. I think it is ok to just mention a single license in the license file, but somewhere else (such as headers file or documentation) we should mention that the code is licensed actually under LGPL2 or any later version.
The LICENSE file just mention LGPL3. I think it is ok to just mention a single license in the license file, but somewhere else (such as headers file or documentation) we should mention that the code is licensed actually under LGPL2 or any later version.