2.3.9.3

Interim bugfix release, see ChangeLog for details.

2.3.8

Interim release with some fixes for Apple silicon.

2.3.6.6

Remove old-style packages in favour of notebook-as-packages.

2.3.6.4

Enable conda binary relocation on Linux.

2.3.6.2

Fix a linker error for the xeus jupyter kernel.

2.3.6.1

Mainly bug fixes.

• Once further change to the installation path of cadabra2.so module, to conform to Debian policies.
• Fix display of lists containing Ex objects.
• Fix import of Jupyter notebooks.
• Fix bug related to automatic dummy index relabelling.
• Fix tab-completion.
• Fix build issues on recent versions of HomeBrew/macOS.

2.3.5

Once further change to the installation path of the cadabra2.so module, so that it conforms with standard conventions, in particular Debian packaging rules. On Debian-based systems, you should now be able to use the Cadabra python module without path settings, and the Jupyter kernel will work nicely with the Jupyter package in Debian.

2.3.4

• Fix a display bug which turned all products into tensor products.
• Enable attaching properties queried with Property.get to new symbols.
• Fix bug pulling with @(...) operator.
• Add option redundant to eliminate_metric to only eliminate metrics which have two dummy indices (David).
• Added option to export notebooks to Jupyter, and a command-line utility to do the same.

2.3.2

Various improvements and fixes, and a new default Jupyter kernel:

• Fixed bug in pattern matching logic used in integrate_by_parts; see this Q&A post.
• Fixed bug which would prevent assignment to node multiplier from Python.
• Tab-completion on command line and in the notebook.
• Install the cadabra2 python module in a standard location (Atri). You may still need to set PYTHONPATH if you are on Debian/Ubuntu.
• Fixes for the Mathematica scalar backend.
• Make expand_delta much faster when the Kronecker delta is contracted with objects which have anti-symmetry.
• Make meld work correctly with non/anti-commuting objects (Dominic).
• Make numbered indices like a1 display with a subscript automatically a<sub>1</sub>.
• Provide pickle functionality for expressions (Dominic).
• Fixes for compatibility with newer SymPy versions.
• Added a 'find' function in the notebook, to search input cells.
• New Jupyter kernel (enabled by default) which does not require Xeus; you can now get access to Cadabra on Jupyter on all supported systems, not just Conda (Fergus).
• Various improvements and fixed for handling and display of Young tableaux.
• Added ExNode::ex() to obtain an Ex object from an ExNode iterator.

2.3.0

Interim release to act as stable source for conda-forge packages. See the web site for the changelog.