A new version of Prism is available for download now. Version 1.3.0 adds many new features and bugfixes.
Completely free and open source.
The following list contains some of the new features since v1.2.0.
A full changelog can be found here.

Support for more renderers and platforms
MoreBlender is supported on Linux now and Photoshop support on Mac was added.

Support for the latest DCC versions
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Framerange presets, single frame and expressions
More– from State Manager settings
– from current scenefile
– from current shot context
– from node (Houdini)
– single fame
– custom per state
For renderstates you can also use frameexpression to render multiple frames with stepping or specific single frames

Asset description, preview and categories
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Save and load rendersetting presets across your project
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Save your renderings in different image formats
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Support for audio in Maya playblasts
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Python 3 support
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