I see world-age behaviour was slightly changed in 1.12. This release occurred after the implementation of automatic input vector to model generation was added to PlantSimEngine.

I don't think anything broke on our end (tests pass without issues), but since we may need to work on automated model generation in other circumstances (multi-timestep, etc.), it is worth looking into the exact nature of the changes and potential consequences and subtleties.

A section about world-age was added in the manual : https://docs.julialang.org/en/v1.12.0-rc2/manual/worldage/