diff --git a/doc/reference_editor.xml b/doc/reference_editor.xml
index 87a179de8..7c7be2882 100644
--- a/doc/reference_editor.xml
+++ b/doc/reference_editor.xml
@@ -1246,6 +1246,8 @@ SELECT ST_AsEWKT(ST_Scale(ST_GeomFromEWKT('LINESTRING(1 2 3, 1 1 1)'), 0.5, 0.75
only. For geometry, length units are in units of spatial reference. For geography, units are in meters.
Availability: 1.2.2Enhanced: 2.1.0 support for geography was introduced.
+ Changed: 2.1.0 As a result of the introduction of geography support: The construct SELECT ST_Segmentize('LINESTRING(1 2, 3 4)',0.5); will result in ambiguous function error. You need to have properly typed object e.g. a geometry/geography column, use ST_GeomFromText, ST_GeogFromText or
+ SELECT ST_Segmentize('LINESTRING(1 2, 3 4)'::geometry,0.5);This will only increase segments. It will not lengthen segments shorter than
max length
diff --git a/doc/xsl/postgis_aggs_mm.xml.xsl b/doc/xsl/postgis_aggs_mm.xml.xsl
index 5cc123653..bceccea95 100644
--- a/doc/xsl/postgis_aggs_mm.xml.xsl
+++ b/doc/xsl/postgis_aggs_mm.xml.xsl
@@ -504,6 +504,38 @@
+
+
+ PostGIS Functions changed behavior in 2.1
+ The functions given below are PostGIS functions that have changed behavior in PostGIS 2.1 and may require application changes.
+ If you are using a function that you don't see documented,
+ it's probably deprecated, about to be deprecated, or internal and should be avoided. If you have applications or tools
+ that rely on deprecated functions, please refer to for more details.
+
+
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+
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+
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+ -
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+ PostGIS Functions new, behavior changed, or enhanced in 2.0