diff --git a/OpenShadingLanguage-1.11.12.0.tar.gz b/OpenShadingLanguage-1.11.12.0.tar.gz
new file mode 100644
index 0000000..df94f2d
--- /dev/null
+++ b/OpenShadingLanguage-1.11.12.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f23f718aab58059b49ac075d6222d9d1341ead716d9a6191e923eea373ce37f6
+size 14141240
diff --git a/OpenShadingLanguage-Release-1.11.9.0.tar.gz b/OpenShadingLanguage-Release-1.11.9.0.tar.gz
deleted file mode 100644
index 66c71c0..0000000
--- a/OpenShadingLanguage-Release-1.11.9.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:9f111db4450901f0686c11a9b44b1a5b9d176702a22337c97c555e35cf8c6442
-size 14137334
diff --git a/OpenShadingLanguage.changes b/OpenShadingLanguage.changes
index c470068..15fb919 100644
--- a/OpenShadingLanguage.changes
+++ b/OpenShadingLanguage.changes
@@ -1,3 +1,41 @@
+-------------------------------------------------------------------
+Sun Mar 21 15:50:36 UTC 2021 - Hans-Peter Jansen <hpj@urpla.net>
+
+- Update to version 1.11.12
+  + Build: Changes for smooth compile against upcoming Imath 3.0.
+    #1332 #1341
+  + Build: We weren't properly hiding non-public symbols. #1337
+  + CI: Cleanup and get rid of the last Travis vestiges. #1334
+  + CI: Speed up CI runs by using GHA cache + ccache. #1335
+  + CI: Separate CI process into several individual "steps." #1338
+
+- Update to version 1.11.11
+  + Build: Make the CMake build system more friendly to being a
+    subproject.
+  + #1304
+  + Build: Improve dependency on Imath/OpenEXR include files.
+  + CI: Fixes to Mac CI. #1315
+  + Docs: Update CLAs, Charter, GOVERNANCE, particularly after
+    acceptance of
+  + new CLAs and moving the repo to the ASWF GitHub account. #1308
+    #1240 #1314
+  + Internals: Switch from deprecated call to OIIO::parallel_image
+    to the new
+  + version. #1317
+
+- Update to version 1.11.10
+  + Bug fix: optimizer interaction with output param that also is
+    userdata.
+  + #1295
+  + Ensure that LoadMemoryCompiledShader returns false upon parse
+    failure.
+  + #1302
+  + Work to ensure that OIIO will build correctly against the
+    upcoming
+  + Imath 3.0 and OpenEXR 3.0. #1299
+
+- Disable lto
+
 -------------------------------------------------------------------
 Sat Nov  7 11:35:53 UTC 2020 - Hans-Peter Jansen <hpj@urpla.net>
 
diff --git a/OpenShadingLanguage.spec b/OpenShadingLanguage.spec
index 80afa66..1f91bb8 100644
--- a/OpenShadingLanguage.spec
+++ b/OpenShadingLanguage.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package OpenShadingLanguage
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -23,13 +23,13 @@
 %define oiio_major_minor_ver %(rpm -q --queryformat='%%{version}' OpenImageIO-devel | cut -d . -f 1-2)
 
 Name:           OpenShadingLanguage
-Version:        1.11.9.0
+Version:        1.11.12.0
 Release:        0
 Summary:        A language for programmable shading
 License:        BSD-3-Clause
 Group:          Productivity/Graphics/Other
 URL:            https://github.com/imageworks/OpenShadingLanguage
-Source0:        https://github.com/imageworks/OpenShadingLanguage/archive/Release-%{version}.tar.gz#/%{name}-Release-%{version}.tar.gz
+Source0:        https://github.com/imageworks/OpenShadingLanguage/archive/Release-%{version}.tar.gz#/%{name}-%{version}.tar.gz
 Source1:        https://creativecommons.org/licenses/by/3.0/legalcode.txt#/CC-BY-3.0.txt
 BuildRequires:  OpenEXR-devel
 BuildRequires:  bison
@@ -190,10 +190,11 @@ The %{name}-devel package contains libraries and header files for
 developing applications that use %{name}.
 
 %prep
-%setup -q -n %{name}-Release-%{version}
+%setup -q -n %{name}-%{version}
 find . -iname CMakeLists.txt -exec sed "-i" "-e s/COMMAND python/COMMAND python3/" "{}" \;
 
 %build
+%define _lto_cflags %{nil}
 %cmake \
       -DCMAKE_SKIP_RPATH:BOOL=TRUE \
       -DCMAKE_INSTALL_DOCDIR:PATH=%{_docdir}/%{name} \