diff --git a/API-changes-between-v2.0-and-v2.1.md b/API-changes-between-v2.0-and-v2.1.md
index 1a7089d..270679c 100644
--- a/API-changes-between-v2.0-and-v2.1.md
+++ b/API-changes-between-v2.0-and-v2.1.md
@@ -2,6 +2,7 @@
 
  * `TextSymbolizer` - most attributes moved to either `format` or `placements` properties
    * TODO - doc all these out
+ * `RasterSymbolizer` - `mode` is deprecated, now use `comp-op` which supports [many more compositing modes](https://github.com/mapnik/mapnik/blob/master/include/mapnik/image_compositing.hpp#L42-79)
 
 ## Removed
 
@@ -10,8 +11,14 @@
 ## Changed
 
  * `MarkersSymbolizer`
-   * `width` and `height` are now expressions rather than raw floats
+   * `width` and `height` are now expressions rather than raw floats and their values represent diameter in pixel not radii
 
 ## Added
 
- * `comp-op` - All symbolizers now support compositing in the AGG and Cairo renderers
\ No newline at end of file
+ * To All symbolizers (in most cases)
+   * `comp-op` - All symbolizers now support compositing in the AGG and Cairo renderers
+   * `clip` - All(most) symbolizers - boolean of whether to clip geometries before rendering (defaults to `true`)
+   * `smooth` - bezier smooth value - 0-1, 0 (default) means no smoothing, 1 means fully smoothed, higher values create wild loopbacks
+ * `LineSymbolizer`
+   * `offset` - offset lines either in positive (right side) or negative (left side)
+ 
\ No newline at end of file