-`evaluate_planner_objective` can now compute the unconditional welfare for order ⩾ 3 (!1962)
- New model editing features (21a8a5794a83b5098cad0fe7beab93dcbe5ef6bf)
- multiple `model` and `estimated_params` block are now supported
- new `model_options` statement to set model options in a global fashion (preprocessor#19)
- new `model_remove` command to remove equations
- new `model_replace` block to replace equations
- new `var_remove` command to remove variables (or parameters)
- new `estimated_params_remove` block to remove estimated parameters
- New options `periods` and `drop` to `evaluate_planner_objective` (!1967)
- Support for new mathematical primitives: complementary error function (`erfc`), hyperbolic functions (`cosh`, `sinh`, `tanh`, `acosh`, `asinh`, `atanh`) (preprocessor#85, preprocessor@c0ea8d72038cd6c57e48aca26d2d29866848ae0a)