# SageMath news -- 2018-01


- ### [List of SageMath-related events at JMM 2018](https://cocalc.com/share/8640eca2-b3c9-464c-bd83-c7d3b38c6a79/sage-related-talks-at-jmm-2018.md?viewer=share)

- ### [SageMath now has a Windows installer](https://github.com/sagemath/sage-windows/releases)

- ### [SageMath 8.1 was released on 2017-12-07](https://sagemath.org/)

  - #### [see the changelog](http://www.sagemath.org/changelogs/sage-8.1.txt)

- ### [Periodic billiard orbits in a regular pentagon, computed with SageMath on CoCalc](http://www.swarthmore.edu/NatSci/ddavis3/pents/)



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