Fujiwara, Ghironi and Bilbiie sent me a message saying that stoch_simul(linear) doesn't report the same results in 4.3 as in the previous version. But they use it with a nonlinear model! I check the manual and we say explicitly that LINEAR declares that the model is linear not to use a linear approximation. I guess that before version 4.3.0, we forced order=1 when the linear option was used in stoch_simul. But, as it is both contrary to the manual and confusing, I would be tempted of forbidding LINEAR as an option of stoch_simul, but this will break existing *.mod files. Or we can be nice to users, and keep interpreting LINEAR as identical to order=1, but we must correct the manual.
What do you think? We may need to check older documentation to understand how the confusion got about.
Best
Michel