diff --git a/.gitignore b/.gitignore
index 3e98237..60575bb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -54,3 +54,5 @@
 /llvm-project-14.0.0.src.tar.xz.sig
 /llvm-project-14.0.5.src.tar.xz.sig
 /llvm-project-14.0.5.src.tar.xz
+/llvm-project-15.0.0.src.tar.xz
+/llvm-project-15.0.0.src.tar.xz.sig
diff --git a/mlir.spec b/mlir.spec
index c58693b..861b324 100644
--- a/mlir.spec
+++ b/mlir.spec
@@ -1,20 +1,20 @@
-%global maj_ver 14
+%global maj_ver 15
 %global min_ver 0
-#global rc_ver 1
-%global patch_ver 5
+#global rc_ver 3
+%global patch_ver 0
 %global mlir_version %{maj_ver}.%{min_ver}.%{patch_ver}
 %global mlir_srcdir llvm-project-%{mlir_version}%{?rc_ver:rc%{rc_ver}}.src
 
 Name: mlir
 Version: %{mlir_version}%{?rc_ver:~rc%{rc_ver}}
-Release: 2%{?dist}
+Release: 1%{?dist}
 Summary: Multi-Level Intermediate Representation Overview
 
 License: ASL 2.0 with exceptions
 URL: http://mlir.llvm.org
 Source0: https://github.com/llvm/llvm-project/releases/download/llvmorg-%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:-rc%{rc_ver}}/%{mlir_srcdir}.tar.xz
 Source1: https://github.com/llvm/llvm-project/releases/download/llvmorg-%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:-rc%{rc_ver}}/%{mlir_srcdir}.tar.xz.sig
-Source2: tstellar-gpg-key.asc
+Source2: release-keys.asc
 
 BuildRequires: gcc
 BuildRequires: gcc-c++
@@ -89,6 +89,9 @@ export LD_LIBRARY_PATH=%{_builddir}/%{mlir_srcdir}/%{name}/%{_build}/%{_lib}
 %files
 %license LICENSE.TXT
 %{_libdir}/libMLIR*.so.%{maj_ver}*
+%{_libdir}/libmlir_async_runtime.so.%{maj_ver}*
+%{_libdir}/libmlir_c_runner_utils.so.%{maj_ver}*
+%{_libdir}/libmlir_runner_utils.so.%{maj_ver}*
 
 %files static
 %{_libdir}/libMLIR*.a
@@ -96,11 +99,17 @@ export LD_LIBRARY_PATH=%{_builddir}/%{mlir_srcdir}/%{name}/%{_build}/%{_lib}
 %files devel
 %{_bindir}/mlir-tblgen
 %{_libdir}/libMLIR*.so
+%{_libdir}/libmlir_async_runtime.so
+%{_libdir}/libmlir_c_runner_utils.so
+%{_libdir}/libmlir_runner_utils.so
 %{_includedir}/mlir
 %{_includedir}/mlir-c
 %{_libdir}/cmake/mlir
 
 %changelog
+* Tue Sep 06 2022 Nikita Popov <npopov@redhat.com> - 15.0.0-1
+- Update to LLVM 15.0.0
+
 * Thu Jul 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 14.0.5-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild
 
diff --git a/release-keys.asc b/release-keys.asc
new file mode 100644
index 0000000..0d3789a
--- /dev/null
+++ b/release-keys.asc
@@ -0,0 +1,104 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
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+-----BEGIN PGP PUBLIC KEY BLOCK-----
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diff --git a/sources b/sources
index 1a36ec8..071b573 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (llvm-project-14.0.5.src.tar.xz.sig) = a785e38f11863a46de8766ff4495a73173479cdbd95dc539804b0381a7a834a409713dbaf441272a9cc2963a3c7015c95dc6f0dcfa745e8d6047b1ad5feacff7
-SHA512 (llvm-project-14.0.5.src.tar.xz) = db5a7ea1149988c2aab4ed634f14e00bb9a8042089350b811f875e295ced7b5add80a11b91cad80ba0ba9801261502644a720021506483c14dfb1bc24a7f54d5
+SHA512 (llvm-project-15.0.0.src.tar.xz) = e5aacbe7574dcec62017cc03c9fa2ee4cf075125a3d6c3975c38f06e91adcebb1ff92bcf40c6dd67db087813c60b15a04f1424c713d751199518b58025ce87fc
+SHA512 (llvm-project-15.0.0.src.tar.xz.sig) = 4096464a46e07575b7cff448ff8bbc38fe972505f366b744419a06339cf32b93266b0fae5390879859041ce6710e4b675ed3ea7561d6a817623d7ece0e969661
diff --git a/tstellar-gpg-key.asc b/tstellar-gpg-key.asc
deleted file mode 100644
index eba625c..0000000
Binary files a/tstellar-gpg-key.asc and /dev/null differ