diff --git a/lz4-1.3.1+svn123.tar.xz b/lz4-1.3.1+svn123.tar.xz
deleted file mode 100644
index 0091d7a..0000000
--- a/lz4-1.3.1+svn123.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:adccdefe61a11da079bb45ac5ecff4f4c5a429064e4967da9995d999604d6365
-size 110804
diff --git a/lz4-1.4.0+svn124.tar.xz b/lz4-1.4.0+svn124.tar.xz
new file mode 100644
index 0000000..dec7625
--- /dev/null
+++ b/lz4-1.4.0+svn124.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a0d2e1565a52b2c6e87005032f4523da8229ab56c595951e2b263dd7f99d8c6f
+size 114636
diff --git a/lz4-killdate.diff b/lz4-killdate.diff
index bbb2471..a05b7b1 100644
--- a/lz4-killdate.diff
+++ b/lz4-killdate.diff
@@ -1,3 +1,8 @@
+From: Jan Engelhardt <jengelh@inai.de
+Date: 2014-10-01 14:23:22.000000000 +0200
+
+build: stop causing rebuilds on our side
+
 ---
  programs/fullbench.c |    2 +-
  programs/lz4cli.c    |    2 +-
diff --git a/lz4-soversion.diff b/lz4-soversion.diff
new file mode 100644
index 0000000..e345030
--- /dev/null
+++ b/lz4-soversion.diff
@@ -0,0 +1,25 @@
+From: Jan Engelhardt <jengelh@inai.de>
+Date: 2014-11-28 20:01:01.723860722 +0100
+
+lz4 management apparently changed the ABI in r124 (size of
+LZ4_streamDecode_t changes) and did not update SO versioning.
+---
+ Makefile |    4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+Index: trunk/Makefile
+===================================================================
+--- trunk.orig/Makefile
++++ trunk/Makefile
+@@ -65,9 +65,9 @@ ifeq ($(shell uname), Darwin)
+ 	SHARED_EXT_VER = $(LIBVER).$(SHARED_EXT)
+ 	SONAME_FLAGS = -install_name $(PREFIX)/lib/liblz4.$(SHARED_EXT_MAJOR) -compatibility_version $(LIBVER_MAJOR) -current_version $(LIBVER)
+ else
+-	SONAME_FLAGS = -Wl,-soname=liblz4.$(SHARED_EXT).$(LIBVER_MAJOR)
++	SONAME_FLAGS = -Wl,-soname=liblz4.$(SHARED_EXT).$(LIBVER_MAJOR).$(LIBVER_MINOR)
+ 	SHARED_EXT = so
+-	SHARED_EXT_MAJOR = $(SHARED_EXT).$(LIBVER_MAJOR)
++	SHARED_EXT_MAJOR = $(SHARED_EXT).$(LIBVER_MAJOR).$(LIBVER_MINOR)
+ 	SHARED_EXT_VER = $(SHARED_EXT).$(LIBVER)
+ endif
+ 
diff --git a/lz4-use-shlib.diff b/lz4-use-shlib.diff
index 40d5a8b..530ffec 100644
--- a/lz4-use-shlib.diff
+++ b/lz4-use-shlib.diff
@@ -1,3 +1,9 @@
+From: Jan Engelhardt <jengelh@inai.de>
+Date: 2014-10-01 14:23:22.000000000 +0200
+
+build: make programs use liblz too instead of linking it statically
+
+Stop wasting my disk space!
 ---
  programs/Makefile |    8 ++++----
  1 file changed, 4 insertions(+), 4 deletions(-)
@@ -6,9 +12,9 @@ Index: trunk/programs/Makefile
 ===================================================================
 --- trunk.orig/programs/Makefile
 +++ trunk/programs/Makefile
-@@ -70,11 +70,11 @@ default: lz4 lz4c
+@@ -65,11 +65,11 @@ default: lz4 lz4c
  
- all: lz4 lz4c lz4c32 fullbench fullbench32 fuzzer fuzzer32 frametest datagen
+ all: lz4 lz4c lz4c32 fullbench fullbench32 fuzzer fuzzer32 frametest frametest32 datagen
  
 -lz4: $(LZ4DIR)/lz4.c $(LZ4DIR)/lz4hc.c $(LZ4DIR)/xxhash.c bench.c lz4io.c lz4cli.c
 -	$(CC)      $(FLAGS) -DDISABLE_LZ4C_LEGACY_OPTIONS $^ -o $@$(EXT)
diff --git a/lz4.changes b/lz4.changes
index b5756ec..ea3d07d 100644
--- a/lz4.changes
+++ b/lz4.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Fri Nov 28 19:02:06 UTC 2014 - jengelh@inai.de
+
+- Update to version 1.4+svn124
+* LZ4F_compressBound() may be called with NULL preferencesPtr
+* LZ4_loadDict now returns the dictionary size instead of 1
+  on success
+- Add lz4-soversion.diff to address ABI changes
+
 -------------------------------------------------------------------
 Wed Oct  1 12:18:15 UTC 2014 - jengelh@inai.de
 
diff --git a/lz4.spec b/lz4.spec
index b5fb6af..8a81022 100644
--- a/lz4.spec
+++ b/lz4.spec
@@ -17,8 +17,8 @@
 
 
 Name:           lz4
-%define lname	liblz4-1
-Version:        1.3.1+svn123
+%define lname	liblz4-1_4
+Version:        1.4.0+svn124
 Release:        0
 Summary:        Hash-based Predictive Lempel-Ziv compressor
 License:        GPL-2.0+ and BSD-2-Clause
@@ -31,6 +31,7 @@ Url:            http://code.google.com/p/lz4/
 Source:         %name-%version.tar.xz
 Patch1:         lz4-use-shlib.diff
 Patch2:         lz4-killdate.diff
+Patch3:         lz4-soversion.diff
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  pkg-config
 BuildRequires:  xz
@@ -71,7 +72,7 @@ applications that want to make use of liblz4.
 
 %prep
 %setup -qn trunk
-%patch -P 1 -P 2 -p1
+%patch -P 1 -P 2 -P 3 -p1
 
 %build
 make %{?_smp_mflags} CFLAGS="%optflags"