diff --git a/doc/Changelog.html b/doc/Changelog.html
index 9db16bd5..0b103969 100644
--- a/doc/Changelog.html
+++ b/doc/Changelog.html
@@ -26,9 +26,10 @@ a:visited { color: #0000EE; }
 <li>Improved internal encoder API, so each encoder can define its own configuration options
 <li>Improved splash screen and working banner, using "sheet of glass" effect on supported OS
 <li>Improved dropbox widget, including proper multi-monitor support
+<li>Updated Opus encoder/decoder libraries to v1.1 and Opus-Tools to v0.1.8 (2013-12-05)
 <li>Updated Monkey's Audio binary to v4.12 (2013-06-26)
 <li>Updated mpg123 decoder to v1.16.0 (2013-10-06), compiled with GCC 4.8.1
-<li>Updated MediaInfo to v0.7.65 (2013-11-20), compiled with ICL 14.1 and MSVC 12.0
+<li>Updated MediaInfo to v0.7.65 (2013-11-20), compiled with ICL 14.0 and MSVC 12.0
 <li>Updated GNU Wget binary to v1.14.0 (2012-08-05), compiled with GCC 4.8.1
 <li>Updated GnuPG to v1.4.15 (2013-10-05), compiled with GCC 4.8.1
 <li>Fixed a resource (file descriptor) leak in "static" builds, didn't cause much harm though
diff --git a/res/Tools_Decd.qrc b/res/Tools_Decd.qrc
index 6249bbca..1b686aa0 100644
--- a/res/Tools_Decd.qrc
+++ b/res/Tools_Decd.qrc
@@ -7,7 +7,8 @@
     <file>tools/mpcdec.exe</file>
     <file>tools/mpg123.exe</file>
     <file>tools/oggdec.exe</file>
-    <file>tools/opusdec.exe</file>
+    <file>tools/opusdec.i386.exe</file>
+    <file>tools/opusdec.sse2.exe</file>
     <file>tools/refalac.exe</file>
     <file>tools/shorten.exe</file>
     <file>tools/speexdec.exe</file>
diff --git a/res/tools/opusdec.exe b/res/tools/opusdec.exe
deleted file mode 100644
index 1ac68688..00000000
Binary files a/res/tools/opusdec.exe and /dev/null differ
diff --git a/res/tools/opusdec.i386.exe b/res/tools/opusdec.i386.exe
new file mode 100644
index 00000000..f89c84c5
Binary files /dev/null and b/res/tools/opusdec.i386.exe differ
diff --git a/res/tools/opusdec.sse2.exe b/res/tools/opusdec.sse2.exe
new file mode 100644
index 00000000..7e4d5514
Binary files /dev/null and b/res/tools/opusdec.sse2.exe differ
diff --git a/res/tools/opusenc.i386.exe b/res/tools/opusenc.i386.exe
index e338b311..03e8cdee 100644
Binary files a/res/tools/opusenc.i386.exe and b/res/tools/opusenc.i386.exe differ
diff --git a/res/tools/opusenc.sse2.exe b/res/tools/opusenc.sse2.exe
index 8112b45f..aee245e5 100644
Binary files a/res/tools/opusenc.sse2.exe and b/res/tools/opusenc.sse2.exe differ
diff --git a/src/Config.h b/src/Config.h
index 16e99003..aa15e311 100644
--- a/src/Config.h
+++ b/src/Config.h
@@ -35,7 +35,7 @@
 #define VER_LAMEXP_MINOR_LO					9
 #define VER_LAMEXP_TYPE						Alpha
 #define VER_LAMEXP_PATCH					10
-#define VER_LAMEXP_BUILD					1503
+#define VER_LAMEXP_BUILD					1506
 #define VER_LAMEXP_CONFG					1348
 
 ///////////////////////////////////////////////////////////////////////////////
diff --git a/src/Tools.h b/src/Tools.h
index 700a603f..c7450ad0 100644
--- a/src/Tools.h
+++ b/src/Tools.h
@@ -74,9 +74,10 @@ g_lamexp_tools[] =
 	{"8b68461f38410421be30cc895e94e63184daa6f2cb20eb110b66b376b48141838a09bc920efeb1c49de79dd0770ce41b", CPU_TYPE_X86_GEN, "oggenc2.i386.exe", 287603, "Beta"},
 	{"20648f83cc637cada481143d48c437ced8423e9a0aae01dbce860cd97fb1ce4000e314f3a5395d1eafd8e154a8e74d08", CPU_TYPE_X86_SSE, "oggenc2.sse2.exe", 287603, "Beta"},
 	{"53766251d69e0695ae7d0cbc4f19aafdce90bfebde0815e2216a5b34955f151271d97d23a00be5ce280a502b718753cc", CPU_TYPE_X64_ALL, "oggenc2.x64.exe",  287603, "Beta"},
-	{"d218922000861a855706bc2c7f1c74c1cfcb814c4a9ed9460af32edb61514a577f261c64b4ed402ddf174cc6824a6507", CPU_TYPE_ALL_ALL, "opusdec.exe", 20130722, "v1.1-beta"},
-	{"03265bef954f8e6abe6d33c4a44be8d32ebe2d7c32288b5ca7290ac3a2e0e9ef33eb54fe510714faa4a4a3ff26cb833c", CPU_TYPE_ALL_GEN, "opusenc.i386.exe", 20130722, "v1.1-beta"},
-	{"06c2b2583f86ace1b82288b6525d27c66536b9d4cb11e46605101ea528b0d9a29338d715bdbcb971820138c05b767957", CPU_TYPE_ALL_SSE, "opusenc.sse2.exe", 20130722, "v1.1-beta"},
+	{"d0899fa678b1d41aa59952e6f5790b30a6dac961390cbfaa3559c302c0da74907b39a348f79014d2ede088338f60a1f1", CPU_TYPE_ALL_GEN, "opusdec.i386.exe", 20131205, "v1.1"},
+	{"1ffce4de07b81a9a07746a2eb169acfac527e1f450509997283dd2ebfc534ab7516b251fc1f81873759a8e363fd7a953", CPU_TYPE_ALL_SSE, "opusdec.sse2.exe", 20131205, "v1.1"},
+	{"bd97b7edb69a81edf8441d07a516b16d2876e22882e302e0c8e730f860ad6d070d124e06034b9b4132022889a6d13d5f", CPU_TYPE_ALL_GEN, "opusenc.i386.exe", 20131205, "v1.1"},
+	{"63beefa4c2481f1e6f260bb3ef62aadc4d838665569145697f42774aa4d343636f8e657b3fa6126155a93e71b3f44203", CPU_TYPE_ALL_SSE, "opusenc.sse2.exe", 20131205, "v1.1"},
 	{"bdfa8dec142b6327a33af6bb314d7beb924588d1b73f2ef3f46b31fa6046fe2f4e64ca78b025b7eb9290a78320e2aa57", CPU_TYPE_ALL_ALL, "refalac.exe", 56, ""},
 	{"d041b60de6c5c6e77cbad84440db57bbeb021af59dd0f7bebd3ede047d9e2ddc2a0c14179472687ba91063743d23e337", CPU_TYPE_ALL_ALL, "shorten.exe", 361, ""},
 	{"cf988bfbb53e77a1dcaefbd5c08789abb4d67cc210723f1f8ba7850f17d34ebb7d0c426b67b963e7d2290a2744865244", CPU_TYPE_ALL_ALL, "sox.exe", 1441, ""},