# Rayleigh Version 1.0.1 Released

**URL:** <https://community.geodynamics.org/t/rayleigh-version-1-0-1-released/2132>\
**Category:** Rayleigh\
**Created:** [December 11, 2021, 4:01pm UTC](https://community.geodynamics.org/t/rayleigh-version-1-0-1-released/2132 "2021-12-11T16:01:30Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![feathern](https://avatars.discourse-cdn.com/v4/letter/f/e8c25b/32.png) [@feathern](https://community.geodynamics.org/u/feathern)\
**Post date:** [December 11, 2021, 4:01pm UTC](https://community.geodynamics.org/t/rayleigh-version-1-0-1-released/2132/1 "2021-12-11T16:01:30Z")

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A critical bug-fix release for Rayleigh is now available. This release fixes an error that led to incorrect results for magnetic diffusion when the magnetic diffusivity varied in radius. Non-MHD simulations and MHD simulations with constant magnetic diffusivity were unaffected by this bug. The new version is available at [Zenodo.](https://zenodo.org/record/5774039#.YbTK4LtlBhE)

-Nick Featherstone on behalf of the Rayleigh development team