diff --git a/CHANGES b/CHANGES
index 9aa2968..104adf8 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,7 +1,7 @@
 i2c-tools CHANGES
 -----------------
 
-master
+4.1 (2018-11-30)
   Makefile: Make STRIP, DESTDIR and PREFIX overridable
   tools: Fix potential buffer overflows in i2cbusses
          Fix build race
diff --git a/lib/Module.mk b/lib/Module.mk
index 4163928..46a1c91 100644
--- a/lib/Module.mk
+++ b/lib/Module.mk
@@ -18,7 +18,7 @@ LIB_CFLAGS	:= -Wstrict-prototypes -Wshadow -Wpointer-arith -Wcast-qual \
 # interface is changed in a backward incompatible way.  The interface is
 # defined by the public header files - in this case they are only smbus.h.
 LIB_MAINVER	:= 0
-LIB_MINORVER	:= 1.0
+LIB_MINORVER	:= 1.1
 LIB_VER		:= $(LIB_MAINVER).$(LIB_MINORVER)
 
 # The shared and static library names
diff --git a/version.h b/version.h
index 93834e7..b8e79a1 100644
--- a/version.h
+++ b/version.h
@@ -1 +1 @@
-#define VERSION "4.0+git"
+#define VERSION "4.1"