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Version 2.8 of Underworld has been released recently. As with all major releases, this release brings numerous new features, enhancements and bug fixes. A summary of changes may be found within the usual file. As is also usually the case, numerous API changes have been necessary or warranted. Most significantly, this release marks a departure from Python2 compatibility, with this and all future releases moving exclusively to Python3 operation.

In this post we’ll consider the following:

  1. The move to Python3
  2. The Semi-Lagrangian Advection Diffusion Scheme
  3. Improved Particle Data Querying
  4. Collective HDF5 IO
  5. API Changes
  6. How To Update

Note that all example notebooks in this post include links to live instances so you can test out the new functionality yourself. Just click the LIVE DEMO link under each example. Thanks to the folks at Binder for providing the cloud compute! …

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