diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 ChangeLog
 
+v0.1.1.0 2015/08/15
+	(2015/08/15) PS1 - relaxed package dependencies.
+	(2015/06/03) PS1 - fixed the documentation for 'arc'.
+	(2015/01/07) PS1 - added a 'clip' command.
+
 v0.1.0.1 2014/10/08
 	(2014/10/07) PS1 - added Applicative and Functor instances to
 	silence compiler warnings.
diff --git a/Graphics/EasyRender.hs b/Graphics/EasyRender.hs
--- a/Graphics/EasyRender.hs
+++ b/Graphics/EasyRender.hs
@@ -73,6 +73,9 @@
   stroke,
   fill,
   fillstroke,
+
+  -- ** Clipping path
+  clip,
   
   -- ** Text commands
   textbox,
diff --git a/Graphics/EasyRender/Internal.hs b/Graphics/EasyRender/Internal.hs
--- a/Graphics/EasyRender/Internal.hs
+++ b/Graphics/EasyRender/Internal.hs
@@ -336,6 +336,7 @@
   | Lineto X Y   -- ^ Append a straight line to the current subpath.
   | Curveto X Y X Y X Y -- ^ Append a Bezier curve segment.
   | Closepath    -- ^ Close the current subpath.
+  | Clip         -- ^ Use the current path as a clipping path.
   | Stroke       -- ^ Stroke and clear the current path.
   | Fill Color   -- ^ Fill and clear the current path.
   | FillStroke Color -- ^ Fill and stroke and clear the current path.
@@ -463,6 +464,18 @@
 closepath = draw_write (Closepath)
 
 -- ----------------------------------------------------------------------
+-- *** Clipping
+
+-- | Use the current path as a clipping path. The non-zero winding
+-- number determines which points lie \"inside\" the path. All
+-- subsequent drawing operations only paint inside the clipping
+-- path. This operation implicitly resets the curent path to empty.
+-- There is no way to undo this operation, except by enclosing it in
+-- the local block.
+clip :: Draw ()
+clip = draw_write (Clip)
+
+-- ----------------------------------------------------------------------
 -- *** Painting commands
 
 -- | Stroke the current path, using the current line color, line
@@ -579,12 +592,12 @@
 -- define it here. Since PostScript does have such a command, we use
 -- the 'draw_subroutine' mechanism.
 
--- | Start a new subpath consisting of a circular arc segment. The
--- arc segment is centered at (/x/,/y/), has radius /r/, and extends
--- from angle /a1/ to angle /a2/, measured in degrees,
--- counterclockwise from the /x/-axis. The arc is drawn clockwise if
--- /a2/ ≥ /a1/, and counterclockwise otherwise. The final point
--- becomes the new current point.
+-- | Start a new subpath consisting of a circular arc segment. The arc
+-- segment is centered at (/x/,/y/), has radius /r/, and extends from
+-- angle /a1/ to angle /a2/, measured in degrees, counterclockwise
+-- from the /x/-axis. The arc is drawn counterclockwise if /a2/ ≥
+-- /a1/, and clockwise otherwise. The final point becomes the new
+-- current point.
 arc :: X -> Y -> Double -> Double -> Double -> Draw ()
 arc x y r a1 a2 = draw_subroutine alt $ do
   arc_internal False x y r r a1 a2
@@ -1170,6 +1183,9 @@
   wPutStrLn "closepath"
 command_to_ps (Stroke) = do
   wPutStrLn "stroke"
+command_to_ps (Clip) = do
+  wPutStrLn "clip"
+  wPutStrLn "newpath"
 command_to_ps (Fill color) = do
   wPutStrLn "gsave" 
   color_to_ps color
@@ -1706,6 +1722,8 @@
   wPutStr "h\n"
 command_to_pdf (Stroke) = do
   wPutStr "S\n"
+command_to_pdf (Clip) = do
+  wPutStr "W\n"
 command_to_pdf (Fill color) = do
   fillcolor_to_pdf color
   wPutStr "f\n"
diff --git a/easyrender.cabal b/easyrender.cabal
--- a/easyrender.cabal
+++ b/easyrender.cabal
@@ -7,7 +7,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.1.0.1
+version:             0.1.1.0
 
 -- A short (one-line) description of the package.
 synopsis:            User-friendly creation of EPS, PostScript, and PDF files
@@ -57,7 +57,7 @@
 maintainer:          selinger@mathstat.dal.ca
 
 -- A copyright notice.
-copyright:           Copyright (c) 2012-2014 Peter Selinger
+copyright:           Copyright (c) 2012-2015 Peter Selinger
 
 -- A classification category for future use by the package catalogue
 -- Hackage. These categories have not yet been specified, but the
@@ -83,5 +83,5 @@
   -- other-modules:       
   
   -- Other library packages from which modules are imported.
-  build-depends:       base >= 4.6 && < 4.8, zlib ==0.5.*, mtl ==2.1.*, bytestring ==0.10.*, containers ==0.5.*, superdoc ==0.1.*
+  build-depends:       base >= 4.6 && < 4.9, zlib >=0.5, mtl >=2.1, bytestring >=0.10, containers >=0.5, superdoc >=0.1