New features:

• Unpickling is now backward compatible: pickled diagrams from DisCoPy v0.6 can be unpickled into the current version.
• Tensor is now parametrised by the dtype.
• A hypergraph equality context manager has been.
• Discard has been defined on Markov categories
• Tensor.copy has been added
• The term "polygynous" has been changed to "left monogamous"

Bug fixes:

• Missing qiskit-aer import has been added
• Missing Sum classes has been added to markov
• Broken links in QNLP tutorial has been fixed
• Ribbon rotation has been fixed
• Matrix.swap has been fixed

Notable updates in the documentation:

• Examples from arXiv:2205.05190 has been added into docs/notebooks/examples.ipynb