The old A6 mirror method is still supported by the current A7 Pro, but will be abandoned in a future A7 version. Instead we recommend doing mirrors with shaders and render-to-texture, as in the current mtlFX template. This will also work in the A7 Commercial edition.

When A7 is officially released, there will be also an A7 trial version. Until then, you can test A7 with the free lite-C version. It also contains the A7 prerelease engine.