* Allow initialization of BFGS/SR1 with user provided hessian * Restrict refinement step-back strategy to only be applied to the best proposal step
0.3.3
* Fixes an issue where the truncated base step was erroneously not included in the set of stepback proposals
0.3.2
* Change x convergence criteria
0.3.1
* Fix convergence checks and stop optimization when tr radius becomes too small * Change default switch iteration for Hybrid Hessian Approximaiton * Check for degeneracy in SR1 updates
0.3.0
* Adds new Hybrid Updating Scheme that generates an approximation from the start, but only applies is after a certain number of iterations.
0.2.5
* Changes default tolerances for FATOL and FRTOL * Fixes 2D subspace computation, this previously led to inaccurate results for parameters close to the boundary. * Fixes the trust region radius updating scheme, previously internal solutions to the trust region subproblem would force radius decrease.