diff --git a/_service b/_service
index b13748c..bcfdee6 100644
--- a/_service
+++ b/_service
@@ -2,7 +2,7 @@
   <service name="obs_scm" mode="manual">
     <param name="url">https://github.com/opentofu/opentofu/</param>
     <param name="scm">git</param>
-    <param name="revision">v1.6.0-beta5</param>
+    <param name="revision">v1.6.0-rc1</param>
     <param name="versionformat">@PARENT_TAG@</param>
     <param name="versionrewrite-pattern">v(.*)-(.*)</param>
     <param name="versionrewrite-replacement">\1~\2</param>
diff --git a/_servicedata b/_servicedata
index 7c8049b..b910257 100644
--- a/_servicedata
+++ b/_servicedata
@@ -1,4 +1,4 @@
 <servicedata>
 <service name="tar_scm">
                 <param name="url">https://github.com/opentofu/opentofu/</param>
-              <param name="changesrevision">5553ba8324d1ce5f2ce82b03546dcee1a2834552</param></service></servicedata>
\ No newline at end of file
+              <param name="changesrevision">9902a7229950df51256fc3af51b6d06a8c808b5e</param></service></servicedata>
\ No newline at end of file
diff --git a/opentofu-1.6.0~beta5.obscpio b/opentofu-1.6.0~beta5.obscpio
deleted file mode 100644
index a6d812b..0000000
--- a/opentofu-1.6.0~beta5.obscpio
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:01b19d72fd11e2d842a28503723db44a86f21249235ea536830e929937b2b120
-size 17711117
diff --git a/opentofu-1.6.0~rc1.obscpio b/opentofu-1.6.0~rc1.obscpio
new file mode 100644
index 0000000..d668e11
--- /dev/null
+++ b/opentofu-1.6.0~rc1.obscpio
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:df9d976ac5498051ac2a83168bd1f3f0562ba2c6be6ff9974fef801d1514c21a
+size 17703949
diff --git a/opentofu.changes b/opentofu.changes
index 49393f1..49aff66 100644
--- a/opentofu.changes
+++ b/opentofu.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Tue Dec 19 20:23:11 UTC 2023 - dmueller@suse.com
+
+- Update to version 1.6.0~rc1:
+  * Bump version. (#1038)
+  * Fixes #980: Remove Packagecloud instructions (#1036)
+  * Fixes #908: Migration guide (#1021)
+  * Re-add ssh and bash to Dockerfile (#1034)
+
 -------------------------------------------------------------------
 Sat Dec 16 19:01:11 UTC 2023 - kastl@b1-systems.de
 
diff --git a/opentofu.obsinfo b/opentofu.obsinfo
index e4f2228..6d81254 100644
--- a/opentofu.obsinfo
+++ b/opentofu.obsinfo
@@ -1,4 +1,4 @@
 name: opentofu
-version: 1.6.0~beta5
-mtime: 1702657313
-commit: 5553ba8324d1ce5f2ce82b03546dcee1a2834552
+version: 1.6.0~rc1
+mtime: 1702995854
+commit: 9902a7229950df51256fc3af51b6d06a8c808b5e
diff --git a/opentofu.spec b/opentofu.spec
index 572d52a..15bad4a 100644
--- a/opentofu.spec
+++ b/opentofu.spec
@@ -19,7 +19,7 @@
 %define executable_name tofu
 
 Name:           opentofu
-Version:        1.6.0~beta5
+Version:        1.6.0~rc1
 Release:        0
 Summary:        Declaratively manage your cloud infrastructure
 License:        MPL-2.0
@@ -29,7 +29,7 @@ Source:         %{name}-%{version}.tar.gz
 Source1:        vendor.tar.gz
 Source99:       opentofu-rpmlintrc
 BuildRequires:  golang-packaging
-BuildRequires:  golang(API) >= 1.20
+BuildRequires:  golang(API) >= 1.21
 # See: https://github.com/hashicorp/opentofu/issues/22807
 ExcludeArch:    %{ix86} %{arm}
 
diff --git a/vendor.tar.gz b/vendor.tar.gz
index 83ba21a..413a691 100644
--- a/vendor.tar.gz
+++ b/vendor.tar.gz
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:527d2a4be939c7fd71cda243ca9b630b7ebce72161a79571d5964f96ba9db272
-size 15165886
+oid sha256:ce0b78cdf7ded107388d57b7fc3fc19a42e268ffb0ce7734de235936a4d85862
+size 15166365