diff --git a/.gitignore b/.gitignore
index 71045b0..c6805bc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,5 @@
 /compiler-rt-10.0.0rc2.src.tar.xz.sig
 /compiler-rt-10.0.0rc3.src.tar.xz
 /compiler-rt-10.0.0rc3.src.tar.xz.sig
+/compiler-rt-10.0.0rc4.src.tar.xz
+/compiler-rt-10.0.0rc4.src.tar.xz.sig
diff --git a/compiler-rt.spec b/compiler-rt.spec
index d135999..13192ac 100644
--- a/compiler-rt.spec
+++ b/compiler-rt.spec
@@ -3,8 +3,8 @@
 %global debug_package %{nil}
 %endif
 
-%global rc_ver 3
-%global baserelease 0.3
+%global rc_ver 4
+%global baserelease 0.4
 
 %global crt_srcdir compiler-rt-%{version}%{?rc_ver:rc%{rc_ver}}.src
 
@@ -122,6 +122,9 @@ fi
 %endif
 
 %changelog
+* Sun Mar 15 2020 sguelton@redhat.com - 10.0.0-0.4.rc4
+- 10.0.0 rc4
+
 
 * Thu Mar 5 2020 sguelton@redhat.com - 10.0.0-0.3.rc3
 - 10.0.0 rc3
diff --git a/sources b/sources
index d0adee1..d9b5b44 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (compiler-rt-10.0.0rc3.src.tar.xz) = 6cde83897ed99aa240f208cf998ff95521ab2eb92be767da61b448f64ab13e47b844474858cf1ccbbc2b711ffa18b5235c2da79383f8f08269d5a4a418062b36
-SHA512 (compiler-rt-10.0.0rc3.src.tar.xz.sig) = 7976b6d21632fad899c16e9a6e141ae7a61b55bb787fe61165a157ad312dff63b13a759d4bfbdc3da2d7af6388a5fff3fb41259ad48a834da9c3f56499a3f464
+SHA512 (compiler-rt-10.0.0rc4.src.tar.xz) = 138be8a4b30b70ad8557232f2a6f94ac4f11af25b8ed275edbd09641dad6a5894c98f6465a809c7f096aa98a024b7fddce61001b8644e545f0a7fcd515e375da
+SHA512 (compiler-rt-10.0.0rc4.src.tar.xz.sig) = 9faddd9c16a68dbd3b316a6bb47ae74271b18f4bbe6727a8f1d865216da676e8ed012196d8f7910ddfaa629cb251fe2deaa246180076a41c78a971885af499d4