diff --git a/README b/README
index 1882b134..8b904180 100644
--- a/README
+++ b/README
@@ -4,7 +4,7 @@
           \__\__/\____/\_____/__/ ____  ___
                 / _/ /    \    \ /  _ \/ _/
                /  \_/   / /   \ \   __/  \__
-               \____/____/\_____/_____/____/v0.1.99
+               \____/____/\_____/_____/____/v0.2.0
 
 Description:
 ============
diff --git a/configure.ac b/configure.ac
index 932b4f30..d81c4c98 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([libwebp], [0.1.99],
+AC_INIT([libwebp], [0.2.0],
         [http://code.google.com/p/webp/issues],,
         [http://developers.google.com/speed/webp])
 AC_CANONICAL_TARGET
diff --git a/src/Makefile.am b/src/Makefile.am
index ab55b676..69a09ef1 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -20,7 +20,7 @@ libwebp_la_LIBADD += dsp/libwebpdsp.la
 libwebp_la_LIBADD += enc/libwebpencode.la
 libwebp_la_LIBADD += utils/libwebputils.la
 
-libwebp_la_LDFLAGS = -version-info 3:0:0
+libwebp_la_LDFLAGS = -version-info 4:0:0
 libwebpincludedir = $(includedir)/webp
 
 pkgconfig_DATA = libwebp.pc
diff --git a/src/dec/vp8i.h b/src/dec/vp8i.h
index 9406b754..4382edfd 100644
--- a/src/dec/vp8i.h
+++ b/src/dec/vp8i.h
@@ -27,8 +27,8 @@ extern "C" {
 
 // version numbers
 #define DEC_MAJ_VERSION 0
-#define DEC_MIN_VERSION 1
-#define DEC_REV_VERSION 99
+#define DEC_MIN_VERSION 2
+#define DEC_REV_VERSION 0
 
 #define ONLY_KEYFRAME_CODE      // to remove any code related to P-Frames
 
diff --git a/src/enc/vp8enci.h b/src/enc/vp8enci.h
index 56f2f11b..a77778c0 100644
--- a/src/enc/vp8enci.h
+++ b/src/enc/vp8enci.h
@@ -26,8 +26,8 @@ extern "C" {
 
 // version numbers
 #define ENC_MAJ_VERSION 0
-#define ENC_MIN_VERSION 1
-#define ENC_REV_VERSION 99
+#define ENC_MIN_VERSION 2
+#define ENC_REV_VERSION 0
 
 // size of histogram used by CollectHistogram.
 #define MAX_COEFF_THRESH   64
diff --git a/src/webp/decode.h b/src/webp/decode.h
index 3c007c52..9df8f89e 100644
--- a/src/webp/decode.h
+++ b/src/webp/decode.h
@@ -18,7 +18,7 @@
 extern "C" {
 #endif
 
-#define WEBP_DECODER_ABI_VERSION 0x0100    // MAJOR(8b) + MINOR(8b)
+#define WEBP_DECODER_ABI_VERSION 0x0200    // MAJOR(8b) + MINOR(8b)
 
 // Return the decoder's version number, packed in hexadecimal using 8bits for
 // each of major/minor/revision. E.g: v2.5.7 is 0x020507.
diff --git a/src/webp/encode.h b/src/webp/encode.h
index dfaf0bbf..2e37cfab 100644
--- a/src/webp/encode.h
+++ b/src/webp/encode.h
@@ -18,7 +18,7 @@
 extern "C" {
 #endif
 
-#define WEBP_ENCODER_ABI_VERSION 0x0100    // MAJOR(8b) + MINOR(8b)
+#define WEBP_ENCODER_ABI_VERSION 0x0200    // MAJOR(8b) + MINOR(8b)
 
 // Return the encoder's version number, packed in hexadecimal using 8bits for
 // each of major/minor/revision. E.g: v2.5.7 is 0x020507.