diff --git a/.gitignore b/.gitignore
index 53ea46f..34ae3e8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,3 +53,4 @@
 /rpm-4.18.0-alpha1.tar.bz2
 /rpm-4.18.0-alpha2.tar.bz2
 /rpm-4.18.0-beta1.tar.bz2
+/rpm-4.18.0-rc1.tar.bz2
diff --git a/0002-Exclude-.src.rpm-from-check-buildroot.patch b/0002-Exclude-.src.rpm-from-check-buildroot.patch
deleted file mode 100644
index 4619287..0000000
--- a/0002-Exclude-.src.rpm-from-check-buildroot.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From 7a9edfccdb667045ecaeeb591161bf08f14066c9 Mon Sep 17 00:00:00 2001
-From: Florian Festi <ffesti@redhat.com>
-Date: Wed, 6 Jul 2022 13:19:59 +0200
-Subject: [PATCH 2/2] Exclude *.src.rpm from check-buildroot
-
-With the SRPMs now containing the expanded spec file they are bound to
-have the build root included in the header. Turns out some people
-package SRPMs to rebuild them locally e.g. against the local kernel.
-
-Resolves: rhbz#2104150
-
-Backported from commit aa701a8f483e2b1f57764c5d9129e27271d96b38
----
- scripts/check-buildroot | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/scripts/check-buildroot b/scripts/check-buildroot
-index 74c3b469b..d97820633 100755
---- a/scripts/check-buildroot
-+++ b/scripts/check-buildroot
-@@ -28,6 +28,7 @@ NCPUS=${RPM_BUILD_NCPUS:-1}
- 
- find "$RPM_BUILD_ROOT" \! \( \
-     -name '*.pyo' -o -name '*.pyc' -o -name '*.elc' -o -name '.packlist' \
-+    -o -name '*.src.rpm' \
-     \) -type f -print0 | \
-     LANG=C xargs -0r -P$NCPUS -n16 grep -lF "$RPM_BUILD_ROOT" >>$tmp
- 
--- 
-2.36.1
-
diff --git a/rpm-4.17.1-revert-autopatch-branch.patch b/rpm-4.17.1-revert-autopatch-branch.patch
deleted file mode 100644
index 4d028f6..0000000
--- a/rpm-4.17.1-revert-autopatch-branch.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-diff -up rpm-4.17.1/macros.in.orig rpm-4.17.1/macros.in
---- rpm-4.17.1/macros.in.orig	2022-08-02 14:19:36.496729048 +0200
-+++ rpm-4.17.1/macros.in	2022-08-02 14:19:56.270615191 +0200
-@@ -1166,10 +1166,7 @@ package or when debugging this package.\
- %{__git} config gc.auto 0\
- %{__git} add --force .\
- %{__git} commit %{-q} --allow-empty -a\\\
--	--author "%{__scm_author}" -m "%{NAME}-%{VERSION} base"\
--%{__git} branch rpm-build \
--%{__git} checkout rpm-build \
--%{__git} branch --set-upstream-to=master
-+	--author "%{__scm_author}" -m "%{NAME}-%{VERSION} base"
- 
- %__scm_apply_git(qp:m:)\
- %{__git} apply --index --reject %{-p:-p%{-p*}} -\
diff --git a/rpm.spec b/rpm.spec
index da578fb..a75482c 100644
--- a/rpm.spec
+++ b/rpm.spec
@@ -29,8 +29,8 @@
 %define rpmhome /usr/lib/rpm
 
 %global rpmver 4.18.0
-%global snapver beta1
-%global baserelease 4
+%global snapver rc1
+%global baserelease 1
 %global sover 9
 
 %global srcver %{rpmver}%{?snapver:-%{snapver}}
@@ -56,14 +56,11 @@ Patch1: rpm-4.17.x-siteconfig.patch
 Patch3: rpm-4.9.90-no-man-dirs.patch
 
 # Patches already upstream:
-Patch101: 0002-Exclude-.src.rpm-from-check-buildroot.patch
 
 # These are not yet upstream
 Patch906: rpm-4.7.1-geode-i686.patch
 # Probably to be upstreamed in slightly different form
 Patch907: rpm-4.15.x-ldflags.patch
-# Hotfix, needs revert or fix upstream
-Patch908: rpm-4.17.1-revert-autopatch-branch.patch
 
 # Partially GPL/LGPL dual-licensed and some bits with BSD
 # SourceLicense: (GPLv2+ and LGPLv2+ with exceptions) and BSD
@@ -613,6 +610,9 @@ fi
 %doc docs/librpm/html/*
 
 %changelog
+* Fri Sep 02 2022 Panu Matilainen <pmatilai@redhat.com> - 4.18.0-0.rc1.1
+- Rebase to 4.18.0-rc1 (https://rpm.org/wiki/Releases/4.18.0)
+
 * Tue Aug 02 2022 Michal Domonkos <mdomonko@redhat.com> - 4.18.0-0.beta1.4
 - Revert %%autosetup -S git patch due to another regression
 
diff --git a/sources b/sources
index dff03e8..9d3cbfc 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (rpm-4.18.0-beta1.tar.bz2) = 4476c9e679e0ac622323e80212404dc062884d1f38923ab824a64e1120bd7c1586379709feae824628425222567e4f338fcba0104e2ae285909df249adcf96c8
+SHA512 (rpm-4.18.0-rc1.tar.bz2) = 64b4a9db704ba1a3d7b1bcf653eca3aa674573f5906f55e1d191b85b5c10b82e1ec591bfe4fbd209445bf818cc2cfb07b2e5e8696e09a46e5ee803355ff5ad4d