# Release notes for cobrapy 0.6.1

## Fixes

- Debug `metabolite.add_metabolites` with `combine=False`
  [#503](https://github.com/opencobra/cobrapy/pull/503)
- Fix broken printing of metabolites
  ([#502](https://github.com/opencobra/cobrapy/issues/502)), by
  removing unnecessary `Frozendict`
