diff --git a/BUILDING b/BUILDING
index c8643c6ae7..b2361bfc38 100644
--- a/BUILDING
+++ b/BUILDING
@@ -1,4 +1,4 @@
-Building Chez Scheme Version 9.4
+Building Chez Scheme Version 9.4.1
 Copyright 1984-2016 Cisco Systems, Inc.
 
 Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/LOG b/LOG
index 3d980cb4fe..1310ec7f7a 100644
--- a/LOG
+++ b/LOG
@@ -166,3 +166,10 @@
   replace the anchors with spans); and replace the deprecated valign
   attribute with a style attribute.
     pdhtml.ss
+
+9.4.1 changes:
+   * updated version to 9.4.1
+        bintar BUILDING NOTICE makefiles/Mf-install.in scheme.1.in
+        c/Makefile.i3nt c/Makefile.a6nt c/Makefile.ti3nt c/Makefile.ta6nt
+        mats/bldnt.bat workarea c/scheme.rc s/7.ss s/cmacros.ss
+        release_notes/release_notes.stex csug/csug.stex
diff --git a/NOTICE b/NOTICE
index cf68a640df..22ebd30e55 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,4 +1,4 @@
-Chez Scheme Version 9.4
+Chez Scheme Version 9.4.1
 Copyright 1984-2016 Cisco Systems, Inc.
 
 This product includes code developed by Cisco Systems, Inc.
diff --git a/bintar b/bintar
old mode 100755
new mode 100644
index 1c91abce33..caca537e94
--- a/bintar
+++ b/bintar
@@ -40,11 +40,11 @@ foreach m ($argv[3-])
         case ti3nt:
         case i3nt:
             set files = ($files $release/bin/$m/scheme.exe)
-            set files = ($files $release/bin/$m/csv94.dll)
-            set files = ($files $release/bin/$m/csv94.lib)
+            set files = ($files $release/bin/$m/csv941.dll)
+            set files = ($files $release/bin/$m/csv941.lib)
             set files = ($files $release/bin/$m/vcruntime140.dll)
-            set files = ($files $release/boot/$m/csv94md.lib)
-            set files = ($files $release/boot/$m/csv94mt.lib)
+            set files = ($files $release/boot/$m/csv941md.lib)
+            set files = ($files $release/boot/$m/csv941mt.lib)
             set files = ($files $release/boot/$m/custommd.obj)
             set files = ($files $release/boot/$m/custommt.obj)
             set files = ($files $release/boot/$m/scheme.res)
diff --git a/c/Makefile.a6nt b/c/Makefile.a6nt
index 5c509232ed..ca1d8fb0b9 100644
--- a/c/Makefile.a6nt
+++ b/c/Makefile.a6nt
@@ -18,11 +18,11 @@ m = a6nt
 # following have to use \ for directory separator
 SchemeInclude = ..\boot\$m
 ZlibInclude = ..\zlib
-KernelDll = ..\bin\$m\csv94.dll
-KernelLib = ..\bin\$m\csv94.lib
-MTKernelLib = ..\boot\$m\csv94mt.lib
-MDKernelLib = ..\boot\$m\csv94md.lib
-KernelExp = ..\bin\$m\csv94.exp
+KernelDll = ..\bin\$m\csv941.dll
+KernelLib = ..\bin\$m\csv941.lib
+MTKernelLib = ..\boot\$m\csv941mt.lib
+MDKernelLib = ..\boot\$m\csv941md.lib
+KernelExp = ..\bin\$m\csv941.exp
 Exec = ..\bin\$m\scheme.exe
 MTMain = ..\boot\$m\mainmt.obj
 MDMain = ..\boot\$m\mainmd.obj
diff --git a/c/Makefile.i3nt b/c/Makefile.i3nt
index 9411cee3b0..4f284036f2 100644
--- a/c/Makefile.i3nt
+++ b/c/Makefile.i3nt
@@ -18,11 +18,11 @@ m = i3nt
 # following have to use \ for directory separator
 SchemeInclude = ..\boot\$m
 ZlibInclude = ..\zlib
-KernelDll = ..\bin\$m\csv94.dll
-KernelLib = ..\bin\$m\csv94.lib
-MTKernelLib = ..\boot\$m\csv94mt.lib
-MDKernelLib = ..\boot\$m\csv94md.lib
-KernelExp = ..\bin\$m\csv94.exp
+KernelDll = ..\bin\$m\csv941.dll
+KernelLib = ..\bin\$m\csv941.lib
+MTKernelLib = ..\boot\$m\csv941mt.lib
+MDKernelLib = ..\boot\$m\csv941md.lib
+KernelExp = ..\bin\$m\csv941.exp
 Exec = ..\bin\$m\scheme.exe
 MTMain = ..\boot\$m\mainmt.obj
 MDMain = ..\boot\$m\mainmd.obj
diff --git a/c/Makefile.ta6nt b/c/Makefile.ta6nt
index 6344b74a33..319b4b2b1b 100644
--- a/c/Makefile.ta6nt
+++ b/c/Makefile.ta6nt
@@ -18,11 +18,11 @@ m = ta6nt
 # following have to use \ for directory separator
 SchemeInclude = ..\boot\$m
 ZlibInclude = ..\zlib
-KernelDll = ..\bin\$m\csv94.dll
-KernelLib = ..\bin\$m\csv94.lib
-MTKernelLib = ..\boot\$m\csv94mt.lib
-MDKernelLib = ..\boot\$m\csv94md.lib
-KernelExp = ..\bin\$m\csv94.exp
+KernelDll = ..\bin\$m\csv941.dll
+KernelLib = ..\bin\$m\csv941.lib
+MTKernelLib = ..\boot\$m\csv941mt.lib
+MDKernelLib = ..\boot\$m\csv941md.lib
+KernelExp = ..\bin\$m\csv941.exp
 Exec = ..\bin\$m\scheme.exe
 MTMain = ..\boot\$m\mainmt.obj
 MDMain = ..\boot\$m\mainmd.obj
diff --git a/c/Makefile.ti3nt b/c/Makefile.ti3nt
index 83d9ceba3c..d7ea1396c8 100644
--- a/c/Makefile.ti3nt
+++ b/c/Makefile.ti3nt
@@ -18,11 +18,11 @@ m = ti3nt
 # following have to use \ for directory separator
 SchemeInclude = ..\boot\$m
 ZlibInclude = ..\zlib
-KernelDll = ..\bin\$m\csv94.dll
-KernelLib = ..\bin\$m\csv94.lib
-MTKernelLib = ..\boot\$m\csv94mt.lib
-MDKernelLib = ..\boot\$m\csv94md.lib
-KernelExp = ..\bin\$m\csv94.exp
+KernelDll = ..\bin\$m\csv941.dll
+KernelLib = ..\bin\$m\csv941.lib
+MTKernelLib = ..\boot\$m\csv941mt.lib
+MDKernelLib = ..\boot\$m\csv941md.lib
+KernelExp = ..\bin\$m\csv941.exp
 Exec = ..\bin\$m\scheme.exe
 MTMain = ..\boot\$m\mainmt.obj
 MDMain = ..\boot\$m\mainmd.obj
diff --git a/c/scheme.rc b/c/scheme.rc
index ab635f2f85..ab67b85235 100644
--- a/c/scheme.rc
+++ b/c/scheme.rc
@@ -1,8 +1,8 @@
 #include "winver.h"
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 9,4,0,0
- PRODUCTVERSION 9,4,0,0
+ FILEVERSION 9,4,1,0
+ PRODUCTVERSION 9,4,1,0
  FILEFLAGSMASK 0x3fL
  FILEFLAGS 0x0L
  FILEOS VOS__WINDOWS32
@@ -12,13 +12,13 @@ VS_VERSION_INFO VERSIONINFO
  BLOCK "StringFileInfo" {
   BLOCK "04090000" {
    VALUE "CompanyName", "Cisco Systems, Inc."
-   VALUE "FileDescription", "Chez Scheme Version 9.4"
-   VALUE "FileVersion", "9.4"
+   VALUE "FileDescription", "Chez Scheme Version 9.4.1"
+   VALUE "FileVersion", "9.4.1"
    VALUE "InternalName", "scheme.exe"
    VALUE "LegalCopyright", "Copyright 1984-2016 Cisco Systems, Inc.  Licensed under the Apache License, Version 2.0."
    VALUE "OriginalFilename", "scheme.exe"
    VALUE "ProductName", "Chez Scheme"
-   VALUE "ProductVersion", "9.4"
+   VALUE "ProductVersion", "9.4.1"
   }
  }
  BLOCK "VarFileInfo" {
diff --git a/checkin b/checkin
index 3359077246..2e99a0a7cb 100755
--- a/checkin
+++ b/checkin
@@ -110,7 +110,6 @@ foreach x ($sdirs)
             goto error
      endsw
 end
-(cd $W/zlib; make distclean > & /dev/null; rm -f zconf.h rm -f Makefile > /dev/null)
 
 set ignorefiles = ()
 
@@ -299,7 +298,7 @@ endif
 
 delete:
 
-set tmpfiles = `(cd $W; find . -type f -print)`
+set tmpfiles = `(cd $W; find . -name zlib -prune -o -type f -print)`
 set files = ()
 foreach x ($tmpfiles)
     set files = ($x $files)
diff --git a/csug/copyright.stex b/csug/copyright.stex
index b17e550eba..025feaafe7 100644
--- a/csug/copyright.stex
+++ b/csug/copyright.stex
@@ -22,7 +22,7 @@ Licensed under the Apache License Version 2.0\\
 http://www.apache.org/licenses/LICENSE-2.0
 
 % NB: also update corresponding notice in csug.stex
-Revised May 2016 for Chez Scheme Version 9.4.
+Revised \INSERTREVISIONMONTHSPACEYEAR for Chez Scheme Version 9.4.1.
 
 \medskip\noindent
 Cisco and the Cisco logo are trademarks or registered trademarks
diff --git a/csug/csug.stex b/csug/csug.stex
index 60e83e06bf..0d5c4e6b79 100644
--- a/csug/csug.stex
+++ b/csug/csug.stex
@@ -44,7 +44,7 @@
 Copyright &copy; 2016 Cisco Systems, Inc.<br>
 Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License Version 2.0</a>
 (<a class=plain href="canned/copyright.html">full copyright notice.</a>).</br>
-Revised May 2016 for Chez Scheme Version 9.4<br>
+Revised \INSERTREVISIONMONTHSPACEYEAR for Chez Scheme Version 9.4.1<br>
 <a class=plain href="canned/about.html">about this book</a>
 </tr></table>
 }}
diff --git a/makefiles/Mf-install.in b/makefiles/Mf-install.in
index 628e26eac5..dc71823384 100644
--- a/makefiles/Mf-install.in
+++ b/makefiles/Mf-install.in
@@ -58,7 +58,7 @@ InstallScriptName=scheme-script
 #                 no changes should be needed below this point                #
 ###############################################################################
 
-Version=csv9.4
+Version=csv9.4.1
 Include=boot/$m
 PetiteBoot=boot/$m/petite.boot
 SchemeBoot=boot/$m/scheme.boot
diff --git a/mats/bldnt.bat b/mats/bldnt.bat
index 7e0a368c9d..c82a8e8a79 100644
--- a/mats/bldnt.bat
+++ b/mats/bldnt.bat
@@ -7,5 +7,5 @@ cl /I../boot/%m% /nologo -c -DWIN32 foreign1.c
 cl /I../boot/%m% /nologo -c -DWIN32 foreign2.c
 cl /I../boot/%m% /nologo -c -DWIN32 foreign3.c
 cl /nologo /DWIN32 cat_flush.c
-link -dll -out:foreign1.so foreign1.obj foreign2.obj foreign3.obj ..\bin\%m%\csv94.lib
+link -dll -out:foreign1.so foreign1.obj foreign2.obj foreign3.obj ..\bin\%m%\csv941.lib
 ..\bin\%m%\scheme -q mat.so < script.all%o%
diff --git a/release_notes/release_notes.stex b/release_notes/release_notes.stex
index cae6f1ffb2..2e9319ef9e 100644
--- a/release_notes/release_notes.stex
+++ b/release_notes/release_notes.stex
@@ -1,6 +1,6 @@
 \documentclass{releasenotes}
 
-\thisversion{Version 9.4}
+\thisversion{Version 9.4.1}
 \thatversion{Version 8.4}
 \pubmonth{May}
 \pubyear{2016}
diff --git a/s/cmacros.ss b/s/cmacros.ss
index b4221a547a..57bb2b13cb 100644
--- a/s/cmacros.ss
+++ b/s/cmacros.ss
@@ -328,7 +328,7 @@
                  [(_ foo e1 e2) e1] ...
                  [(_ bar e1 e2) e2]))))])))
 
-(define-constant scheme-version #x00090400)
+(define-constant scheme-version #x00090401)
 
 (define-syntax define-machine-types
   (lambda (x)
diff --git a/workarea b/workarea
index 734625e55d..6b7cb15e7b 100755
--- a/workarea
+++ b/workarea
@@ -176,8 +176,8 @@ case $M in
   *nt)
     (cd $W/boot/$M; workln ../../../boot/$M/mainmd.obj mainmd.obj)
     (cd $W/boot/$M; workln ../../../boot/$M/mainmt.obj mainmt.obj)
-    (cd $W/boot/$M; workln ../../../boot/$M/csv94md.lib csv94md.lib)
-    (cd $W/boot/$M; workln ../../../boot/$M/csv94mt.lib csv94mt.lib)
+    (cd $W/boot/$M; workln ../../../boot/$M/csv941md.lib csv941md.lib)
+    (cd $W/boot/$M; workln ../../../boot/$M/csv941mt.lib csv941mt.lib)
     (cd $W/boot/$M; workln ../../../boot/$M/scheme.res scheme.res)
     ;;
   *)
@@ -192,8 +192,8 @@ case $M in
   *nt)
     (cd $W/bin/$M; workln ../../../bin/$M/scheme.exe scheme.exe)
     (cd $W/bin/$M; forceworkln scheme.exe petite.exe)
-    (cd $W/bin/$M; workln ../../../bin/$M/csv94.dll csv94.dll)
-    (cd $W/bin/$M; workln ../../../bin/$M/csv94.lib csv94.lib)
+    (cd $W/bin/$M; workln ../../../bin/$M/csv941.dll csv941.dll)
+    (cd $W/bin/$M; workln ../../../bin/$M/csv941.lib csv941.lib)
     ;;
   *)
     (cd $W/bin/$M; workln ../../../bin/$M/scheme scheme)
@@ -206,7 +206,7 @@ case $M in
   *nt)
     (cd $W/bin; forceworkln $M/scheme.exe scheme.exe)
     (cd $W/bin; forceworkln $M/petite.exe petite.exe)
-    (cd $W/bin; forceworkln $M/csv94.dll csv94.dll)
+    (cd $W/bin; forceworkln $M/csv941.dll csv941.dll)
     ;;
   *)
     (cd $W/bin; forceworkln $M/scheme scheme)