Update CHANGELOG.md

CHANGELOG.md

@@ -1,4 +1,16 @@
 ## [Unreleased](https://github.com/gravitystorm/openstreetmap-carto/compare/v4.19.0...master)
+## Changes
+- Lightening major buildings fill and outline (#3659)
+- Adding rendering for aboriginal areas (#3521)
+- Dropping rendering of leisure=common (#3619)
+- Adding missing oneway arrows for tracks and paths (#3614)
+- Changing way_pixels limit to 750 for protected_area boundaries (#3661)
+- Adding rendering for ref of track roads (#3654)
+- Improving rendering of text labels on admin and nature-reserve borders (#3652)
+- Changing way_pixels calculation to use scale_denominator (#3657)
+- Fixing layering order for "construction=*" highway categories (#3646)
+- Reducing saturation of pitch outline color (#3658)
+- roads-text-ref-low-zoom: remove unused SQL CASE conditions in ORDER BY (#3680)
 
 ## [v4.19.0](https://github.com/gravitystorm/openstreetmap-carto/compare/v4.18.0...v4.19.0) - 2019-01-18
 ## Changes