[OSM-dev] OpenStreetMap Carto dependency changes

Paul Norman penorman at mac.com
Sun Dec 4 08:08:31 UTC 2016

OpenStreetMap Carto has changed it's dependencies, which will impact any 
parties using the style. The changes are

- Mapnik 3 is now required

- CartoCSS >= 0.16.0 is now required

- Official Tilemill support is dropped. Tilemill does not meet the above 

- project.mml is now a YAML file which is passed directly to CartoCSS 
without any

If you are maintaining a fork, rebasing the changes onto your branch 
should be fairly
easy, but you can contact me off-list if you need git help.

The next version released will be v3.0.0. The v3 series is expected to 
be a much
shorter than v2, as we are working on 
which will start the v4 series.

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