diff --git a/.cvsignore b/.cvsignore
index bb5bdef..d81b300 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1,3 +1,4 @@
 thunderbird-0.7.3-source.tar.bz2
 thunderbird-source-0.8.tar.bz2
 thunderbird-0.9-source.tar.bz2
+thunderbird-1.0rc-source.tar.bz2
diff --git a/sources b/sources
index cde2693..546d3bb 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-38735d351e44d08dd4376d349a7d3992  thunderbird-0.9-source.tar.bz2
+b9cba74e240c4b466351468d8d11090a  thunderbird-1.0rc-source.tar.bz2
diff --git a/thunderbird.spec b/thunderbird.spec
index 236107d..099fc6b 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -7,13 +7,13 @@ ExclusiveArch: i386 x86_64 ia64 ppc
 
 Summary:	Mozilla Thunderbird mail/newsgroup client
 Name:		thunderbird
-Version:	0.9
-Release:	2
+Version:	1.0
+Release:	0.rc1.0
 Epoch:		0
 URL:		http://www.mozilla.org/projects/thunderbird/
 License:	MPL
 Group:		Applications/Internet
-Source0:	thunderbird-%{version}-source.tar.bz2
+Source0:	thunderbird-%{version}rc-source.tar.bz2
 Source1:	thunderbird.desktop
 # This icon is used with the permission of mozilla.org.
 Source2:	thunderbird-icon.png
@@ -159,6 +159,9 @@ rm -rf %{buildroot}/%{tbdir}/chrome/{classic,comm,embed-sample,en-{mac,win},help
 #===============================================================================
 
 %changelog
+* Wed Dec  1 2004 Christopher Aillon <caillon@redhat.com> 1.0-0.rc1.0
+- Update to 1.0 rc1
+
 * Thu Nov 11 2004 Christopher Aillon <caillon@redhat.com> 0.9.0-2
 - Rebuild to fix file chooser