diff --git a/CREDITS b/CREDITS
index fbc916b..e5230c3 100644
--- a/CREDITS
+++ b/CREDITS
@@ -67,3 +67,10 @@ Matt Powell (fauxparse)
 
 Patrick Collison
 * Added safe mode for Collection#remove
+
+Chuck Remes
+* Extraction of BSON into separate gems
+* Extensions compile on Rubinius
+
+Dmitrii Golub (Houdini) and Jacques Crocker (railsjedi)
+* Support open to exclude fields on query
diff --git a/HISTORY b/HISTORY
index 162fda2..1c3eb8c 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,3 +1,14 @@
+0.20
+* BSON-related code extracted into two separate gems: bson and bson_ext (Chuck Remes).
+* Extensions compile on Rubinius (Chuck Remes).
+* Query :fields options allows for values of 0 to exclude fields (houdini, railsjedi).
+* BSON::Binary constructor can now take a string, which will be packed into an array.
+* GridFS
+  * Option to delete old versions of GridFileSystem entries.
+  * Filename is now optional for Grid#put.
+* Removed the following deprecated items:
+  * GridStore class
+
 0.19.3 2010-4-5
 * Minor fix for assert_valid_keys.