diff --git a/include/mapnik/README.fontserver b/include/mapnik/README.fontserver
index 5283ca0..02ee017 100644
--- a/include/mapnik/README.fontserver
+++ b/include/mapnik/README.fontserver
@@ -13,6 +13,10 @@ Local Modifications:
   - Added operator== overload
   - Removed FT_Stroker
 - text/glyph_info.hpp
+  - Store signed distance field in std::string bitmap
+  - Set height from FT_GlyphBitmap instead of calculating from FT_BBox
+  - Add left, top, advance, ascender and descender metrics
+  - Add operator< overload for sorting
 - font_engine_freetype.cpp
   - More verbose error logging
   - Assume MAPNIK_THREADSAFE
@@ -20,5 +24,9 @@ Local Modifications:
   - Removed FT_Stroker
 - text/face.cpp
   - Implement shared glyph cache
+  - Remove unnecessary FT_Set_Transform
+  - Remove FT_BBox height calculation
+  - Set glyph_info width, height, top and left from FT_BitmapGlyph
+  - Set glyph_info ascender and descender from face metrics
   - Create signed distance fields when adding glyphs to cache
   - Remove FT_Stroker