diff --git a/scripts/docs_gen.py b/scripts/docs_gen.py
index 3a25d84..b0c8ace 100755
--- a/scripts/docs_gen.py
+++ b/scripts/docs_gen.py
@@ -149,7 +149,7 @@ def run_openscad_script(libfile, infile, imgfile, imgsize=(320,240), eye=None, s
     p = subprocess.Popen(scadcmd, shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
     (stdoutdata, stderrdata) = p.communicate(None)
     res = p.returncode
-    if res != 0 or b"ERROR:" in stderrdata or b"WARNING:" in stderrdata:
+    if res != 0 or b"ERROR:" in stderrdata or b"TRACE:" in stderrdata:
         print("\n\n{}".format(stderrdata.decode('utf-8')))
         print("////////////////////////////////////////////////////")
         print("// {}: {} for {}".format(libfile, infile, imgfile))
diff --git a/scripts/make_all_docs.sh b/scripts/make_all_docs.sh
index 83c8a3e..8b8c6e0 100755
--- a/scripts/make_all_docs.sh
+++ b/scripts/make_all_docs.sh
@@ -17,7 +17,7 @@ done
 if [[ "$FILES" != "" ]]; then
     PREVIEW_LIBS="$FILES"
 else
-    PREVIEW_LIBS="version common errors attachments math arrays vectors affine coords geometry triangulation quaternions strings stacks queues structs vnf skin hull constants edges transforms primitives shapes masks shapes2d paths beziers rounding walls cubetruss metric_screws threading partitions involute_gears sliders joiners linear_bearings nema_steppers wiring phillips_drive torx_drive polyhedra knurling cubetruss debug"
+    PREVIEW_LIBS="affine arrays attachments beziers bosl1compat bottlecaps common constants coords cubetruss debug distributors edges errors geometry hingesnaps hull involute_gears joiners knurling linear_bearings masks math metric_screws mutators nema_steppers partitions paths phillips_drive polyhedra primitives quaternions queues regions rounding shapes shapes2d skin sliders stacks std strings structs threading torx_drive transforms triangulation vectors version vnf walls wiring"
 fi
 
 dir="$(basename $PWD)"
diff --git a/skin.scad b/skin.scad
index f9c4abc..1898ae2 100644
--- a/skin.scad
+++ b/skin.scad
@@ -1007,13 +1007,13 @@ function affine_frame_map(x,y,z, reverse=false) =
 //   yzcircle = yrot(90,p=circle($fn=64, r=30));
 //   ushape = [[-10, 0],[-10, 10],[ -7, 10],[ -7, 2],[  7, 2],[  7, 7],[ 10, 7],[ 10, 0]];
 //   path_sweep(ushape, yzcircle, method="manual", normal=UP, closed=true);
-// Examples: The "natural" method will introduce twists when the curvature changes direction.  A warning is displayed.  
+// Example: The "natural" method will introduce twists when the curvature changes direction.  A warning is displayed.  
 //   arc1 = path3d(arc(angle=90, r=30));
 //   arc2 = xrot(-90, cp=[0,30],p=path3d(arc(angle=[90,180], r=30)));
 //   two_arcs = simplify_path(concat(arc1,arc2));
 //   ushape = [[-10, 0],[-10, 10],[ -7, 10],[ -7, 2],[  7, 2],[  7, 7],[ 10, 7],[ 10, 0]];
 //   path_sweep(ushape, two_arcs, method="natural");
-// Examples: The only simple way to get a good result is the "incremental" method:
+// Example: The only simple way to get a good result is the "incremental" method:
 //   arc1 = path3d(arc(angle=90, r=30));
 //   arc2 = xrot(-90, cp=[0,30],p=path3d(arc(angle=[90,180], r=30)));
 //   arc3 = apply( translate([-30,60,30])*yrot(90), path3d(arc(angle=[270,180], r=30)));
diff --git a/version.scad b/version.scad
index dd94137..80fa107 100644
--- a/version.scad
+++ b/version.scad
@@ -8,7 +8,7 @@
 //////////////////////////////////////////////////////////////////////
 
 
-BOSL_VERSION = [2,0,139];
+BOSL_VERSION = [2,0,140];
 
 
 // Section: BOSL Library Version Functions