Uno v1.0.0 allows combinations of the following strategies: - constraint relaxation strategies: l1 relaxation and l1 feasibility restoration. - subproblems: QP, LP and primal-dual barrier. - globalization strategies: l1 merit function and filter method (with standard filter or nonmonotone filter). - globalization mechanisms: line search and trust-region method. Some combinations are at the moment not fully supported, namely barrier + trust-region (disabled) and l1 merit function + feasibility restoration (Uno issues a warning). This will be improved in later versions of Uno. The only existing interface is to AMPL ([.nl files](https://en.wikipedia.org/wiki/Nl_(format))).