diff --git a/libzbc.changes b/libzbc.changes
index 9ead152..8685f68 100644
--- a/libzbc.changes
+++ b/libzbc.changes
@@ -1,3 +1,23 @@
+-------------------------------------------------------------------
+Tue Aug  8 11:18:07 UTC 2017 - jengelh@inai.de
+
+- Update to new upstream release 5.3.1
+  * A rewrite of libzbc introducing significant changes to the
+    API. Support for draft standards 4.x is dropped. Compliance
+    to the final ZBC/ZAC standards is improved.
+  * All functions now operate using 512B sector units, regardless
+    of the device actual logical block size. This is in line with
+    Linux block device management and can simplify application
+    implementation by unifying the addressing unit used when
+    devices with different logical block sizes (512B or 4096B)
+    are being used. Applications must however still comply with
+    write request alignment to the device physical block size,
+    which may be different from the 512B sector size unit used.
+  * Improved read and write functions (zbc_pread and zbc_pwrite)
+    to not limit the request size to the device maximum request
+    data transfer size (calls are internally split into multiple
+    requests).
+
 -------------------------------------------------------------------
 Tue Nov 29 10:31:02 UTC 2016 - jengelh@inai.de
 
diff --git a/libzbc.spec b/libzbc.spec
index 4d718c1..24e6e9f 100644
--- a/libzbc.spec
+++ b/libzbc.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libzbc
 #
-# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,8 +17,8 @@
 
 
 Name:           libzbc
-%define lname   libzbc-4_3_3
-Version:        4.3.3
+%define lname   libzbc-5_3_1
+Version:        5.3.1
 Release:        0
 Summary:        Library for manipulating ZBC and ZAC disks
 License:        BSD-2-Clause and LGPL-3.0+
diff --git a/v4.3.3.tar.gz b/v4.3.3.tar.gz
deleted file mode 100644
index 5df065c..0000000
--- a/v4.3.3.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:0e6c15d8172ce42e7585a3f3b715c23fd07da106a1cb03b8898823df4c3675d1
-size 825440
diff --git a/v5.3.1.tar.gz b/v5.3.1.tar.gz
new file mode 100644
index 0000000..e57194a
--- /dev/null
+++ b/v5.3.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e048e0f16649b3b75e6a0ad148951de9f36c357485322e44bf9257060ce77d50
+size 126910