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date: 2018-02-27 title: "Hugo 0.37: Preserve PNG Colour Palette" description: "Reduces processed PNG file sizes. And 0.37 is built with Go 1.10!" categories: ["Releases"]

The main item in Hugo 0.37 is that we now properly preserve the colour palette when processing PNG images. We got reports from users experiencing their PNG images getting bigger in file size when scaled down. Now, if you, as an example, start out with a carefully chosen 8 bit colour palette (i.e. PNG-8), this is now what you will end up with. A special thanks to @aitva for doing the investigative work finding a proper fix for this issue.

This release represents 40 contributions by 5 contributors to the main Hugo code base.

@bep leads the Hugo development with a significant amount of contributions, but also a big shoutout to @vassudanagunta, @kaushalmodi, and @curttimson for their ongoing contributions.

And as always a big thanks to @digitalcraftsman for his relentless work on keeping the documentation and the themes site in pristine condition.

Many have also been busy writing and fixing the documentation in hugoDocs, which has received 24 contributions by 8 contributors. A special thanks to @bep, @4RU, @kaushalmodi, and @mitchchn for their work on the documentation site.

Hugo now has:

Notes

  • Hugo will now convert non-string YAML map keys to string. See #4393 for more information. You will get a WARNING in the console if you are touched by this.
  • We have improved the PNG processing, and have incremented the version numbers on the URL for the processed PNG image. This will just work, but you may want to run hugo --gc to clean up some old stale images in the resource cache.

Enhancements

Templates

  • Add template func for TOML/JSON/YAML docs examples conversion. This is mainly motivated by the needs of the Hugo docs site. d382502d @bep #4389

Core

Other

Fixes

Core

Other