https://wiki.sagemath.org/ReleaseTours/sage-9.1 - please review

[Matthias Koeppe]

Thanks to all who have contributed to https://wiki.sagemath.org/ReleaseTours/sage-9.1 !

We now have:

Sage 9.1 Release Tour

in progress (2020)

Contents

1. Sage 9.1 Release Tour
   1. Python 3 transition
   2. Portability improvements, increased use of system packages
      1. For developers
      2. For packagers
   3. Package updates
      1. For developers
   4. Polyhedral geometry
   5. Improvements in the three.js 3D viewer
   6. Integral curves over finite fields
   7. Ariki-Koike algebras
   8. Configuration changes
      1. Easier installation of optional linear and mixed integer linear optimization backends
      2. New way to install optional and experimental packages
      3. For developers and packagers
   9. Spring cleaning
   10. Availability of Sage 9.1 and installation help
       1. Availability in distributions
       2. Installation FAQ
   11. More details