diff --git a/Changes b/Changes
index 0081230..f2bb0b8 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,10 @@
+Version 2.3
+
+o New operation -hard-box to clip contents to a given box
+
 Version 2.2 (March 2017)
 
-o Perform artihmetic on dimensions when specifying size or position
+o Perform arithmetic on dimensions when specifying size or position
 o Add simple rectangles to PDF to blank things out
 o Stamping operations now preserve annotations
 o Decryption fully on-demand for speed.
diff --git a/cpdfcommand.ml b/cpdfcommand.ml
index cc38a7d..97982cf 100644
--- a/cpdfcommand.ml
+++ b/cpdfcommand.ml
@@ -2066,6 +2066,7 @@ and specs =
    ("-squeeze", Arg.Unit setsqueeze, " Squeeze");
    ("-squeeze-log-to", Arg.String setsqueezelogto, " Squeeze log location");
    (*These items are undocumented *)
+   ("-remove-unused-resources", Arg.Unit (setop RemoveUnusedResources), "");
    ("-stay-on-error", Arg.Unit setstayonerror, "");
    ("-extract-fontfile", Arg.Unit (setop ExtractFontFile), "");
    ("-extract-images", Arg.Unit setextractimages, "");