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**Added:**
* Added method ``SimplicialHomologyClass.chain()`` and examples that show how to rewrite a homology class into edges with multiplicities or into a holonomy vector.
* Added homology of saddle connections
**Changed:**
* Changed documentation to recommend conda over mamba (since mamba has been merged into essentially).
**Fixed:**
* Fixed a printing issues with surfaces containing 21-gons to 99-gons.
* Fixed printing of ``change_ring()`` surfaces.
* Fixed ``surface.change_ring().change_ring()`` to change the ring of the underlying surface instead of wrapping the surface twice.
* Fixed asssertion error when computing homology over the rationals.
* Fixed broken links in documentation (and added automatic checks for broken links).
* Fixed download instructions for "nightly build" installer.
* Fixed ``%pip`` and ``!conda`` in JupyterLab when launched from the installer
(pip and conda are now installed into the dev environment).
* Fixed an UnboundLocalError in some saddle connection searches.