Main additions since v1.3.0 release (17/08/21):

30/08/21: Density matrix codes added (at v3) f5e4019, plus updates 21/03/22 7b17ad0
Various: Improvements to checkDims() and associated routines
- 26/08/21: stacked dim handling added ad99788
- 29/09/21: added basic Pandas dataframe support 9c6c96c
- 23/06/22: added support for non-dimensional dim handling 5c34c04
27/01/22: HVplot support in BLMplot() 6bcc112
07/03/22: Updated EDCS seg parsing 956f7a9
May 2022: improved file IO in writeXarray() (e3988d0) and readXarray() (16626ea). (Further improvements are still ongoing, see #8.)
07/06/22: Implmented general restack() routine fa8522e
23/06/22: Added deconstructDims() and reconstructDims() for Xarray <> dict handling 8512be3 (Further improvements are still ongoing, see #8.)

Bug-fixes & docs

30/08/21: added density matrix dev & demo notebooks dca6275 (plus updates fe84812)
27/01/22: Docs update, including use of Holoviews plotters 5702484
01/04/22: Various updates for Python > 3.8, and current versions of Xarray (v2022.03.0 (2 March 2022)) and associated build-chain 05992ca and #51. Changes should be non-breaking for older build-chains, except note 09fe7de, which may not be back-compatible - TBC.