- parameters that are not defined in the `parameters` block will raise an error
- `find_path` now returns a tuple `(x, flag)` where `x` is the solution and `(ferr, errbool) = flag` is a tuple or the errors in the target function `ferr` and the error flag `errbool`
- the `equations` block in the yaml now allows to use `==` for conditioning
- yamls now can contain a block of `globals` which are available through all stages. E.g.
globals:
first_global: 1
second_global: False
another_one: "cool_string"
**Full Changelog**: https://github.com/gboehl/econpizza/compare/0.5.5...0.5.6