diff --git a/SPECS/mariner-repos/mariner-preview.repo b/SPECS/mariner-repos/mariner-preview.repo
new file mode 100755
index 00000000000..67d6673c138
--- /dev/null
+++ b/SPECS/mariner-repos/mariner-preview.repo
@@ -0,0 +1,9 @@
+[mariner-preview]
+name=CBL-Mariner Official Preview $releasever $basearch
+baseurl=https://packages.microsoft.com/cbl-mariner/$releasever/preview/update/$basearch/rpms
+gpgkey=file:///etc/pki/rpm-gpg/MICROSOFT-RPM-GPG-KEY file:///etc/pki/rpm-gpg/MICROSOFT-METADATA-GPG-KEY
+gpgcheck=1
+repo_gpgcheck=1
+enabled=1
+skip_if_unavailable=True
+sslverify=1
diff --git a/SPECS/mariner-repos/mariner-repos.signatures.json b/SPECS/mariner-repos/mariner-repos.signatures.json
index 08456c98983..456d8662e06 100644
--- a/SPECS/mariner-repos/mariner-repos.signatures.json
+++ b/SPECS/mariner-repos/mariner-repos.signatures.json
@@ -3,6 +3,7 @@
   "MICROSOFT-RPM-GPG-KEY": "1092f37ec429e58bf9c7f898df17c3c32eb2ce3c4c037afb8ffe2d2b42e16e89",
   "MICROSOFT-METADATA-GPG-KEY": "1824ecffeda90cfe4178a99bddde450f09fd40e8faf4f0124fba16ea79998c4c",
   "mariner-official-base.repo": "af485f85c5c856536c6ec2f73f0afd1d9c424396fce1c9ae6f40745a5f41503d",
-  "mariner-official-update.repo": "d80ed87ba6cf1e535131a9a68499b832dc87fc9add29cbae0f6cc76ebc36fbf3"
+  "mariner-official-update.repo": "d80ed87ba6cf1e535131a9a68499b832dc87fc9add29cbae0f6cc76ebc36fbf3",
+  "mariner-preview.repo": "7b5731bce3d0c81647144822a886a01912e325db10f7519e105b5224a25f1568"
  }
 }
diff --git a/SPECS/mariner-repos/mariner-repos.spec b/SPECS/mariner-repos/mariner-repos.spec
index 6f11555ed35..d76bed2dfef 100644
--- a/SPECS/mariner-repos/mariner-repos.spec
+++ b/SPECS/mariner-repos/mariner-repos.spec
@@ -1,17 +1,18 @@
 Summary:        CBL-Mariner repo files, gpg keys
 Name:           mariner-repos
 Version:        1.0
-Release:        9%{?dist}
+Release:        10%{?dist}
 License:        Apache License
 Group:          System Environment/Base
 URL:            https://aka.ms/mariner
+Vendor:         Microsoft Corporation
+Distribution:   Mariner
 Source0:        MICROSOFT-RPM-GPG-KEY
 Source1:        MICROSOFT-METADATA-GPG-KEY
 Source2:        mariner-official-base.repo
 Source3:        mariner-official-update.repo
-Vendor:         Microsoft Corporation
-Distribution:   mariner
-Provides:       mariner-repos
+Source4:        mariner-preview.repo
+
 Requires(post): gpgme
 Requires(post): rpm
 Requires(preun): gpgme
@@ -21,11 +22,20 @@ BuildArch:      noarch
 %description
 CBL-Mariner repo files and gpg keys
 
+%package preview
+Summary:    CBL-Mariner preview repo file.
+Group:      System Environment/Base
+Requires:   %{name} = %{version}-%{release}
+
+%description preview
+%{summary}
+
 %install
 rm -rf $RPM_BUILD_ROOT
 install -d -m 755 $RPM_BUILD_ROOT/etc/yum.repos.d
 install -m 644 %{SOURCE2} $RPM_BUILD_ROOT/etc/yum.repos.d
 install -m 644 %{SOURCE3} $RPM_BUILD_ROOT/etc/yum.repos.d
+install -m 644 %{SOURCE4} $RPM_BUILD_ROOT/etc/yum.repos.d
 
 install -d -m 755 $RPM_BUILD_ROOT/etc/pki/rpm-gpg
 install -m 644 %{SOURCE0} $RPM_BUILD_ROOT/etc/pki/rpm-gpg
@@ -52,7 +62,14 @@ gpg --batch --yes --delete-keys 2BC94FFF7015A5F28F1537AD0CD9FED33135CE90
 %config(noreplace) /etc/yum.repos.d/mariner-official-base.repo
 %config(noreplace) /etc/yum.repos.d/mariner-official-update.repo
 
+%files preview
+%defattr(-,root,root,-)
+%config(noreplace) /etc/yum.repos.d/mariner-preview.repo
+
 %changelog
+*   Mon Sep 28 2020 Pawel Winogrodzki <pawelwi@microsoft.com> 1.0-10
+-   Adding configuration to access the preview repository.
+-   Removing redundant 'Provides'.
 *   Tue Aug 11 2020 Saravanan Somasundaram <sarsoma@microsoft.com> - 1.0-9
 -   Enable GPG Check and Import
 *   Mon Aug 10 2020 Saravanan Somasundaram <sarsoma@microsoft.com> - 1.0-8
diff --git a/toolkit/resources/manifests/package/pkggen_core_aarch64.txt b/toolkit/resources/manifests/package/pkggen_core_aarch64.txt
index d5c3f5aa934..7b28c15ec9b 100644
--- a/toolkit/resources/manifests/package/pkggen_core_aarch64.txt
+++ b/toolkit/resources/manifests/package/pkggen_core_aarch64.txt
@@ -155,7 +155,7 @@ npth-1.6-3.cm1.aarch64.rpm
 pinentry-1.1.0-3.cm1.aarch64.rpm
 gnupg2-2.2.20-3.cm1.aarch64.rpm
 gpgme-1.13.1-5.cm1.aarch64.rpm
-mariner-repos-1.0-9.cm1.noarch.rpm
+mariner-repos-1.0-10.cm1.noarch.rpm
 libffi-3.2.1-11.cm1.aarch64.rpm
 libtasn1-4.14-2.cm1.aarch64.rpm
 p11-kit-0.23.16.1-2.cm1.aarch64.rpm
diff --git a/toolkit/resources/manifests/package/pkggen_core_x86_64.txt b/toolkit/resources/manifests/package/pkggen_core_x86_64.txt
index 371162444a5..b4e173108b1 100644
--- a/toolkit/resources/manifests/package/pkggen_core_x86_64.txt
+++ b/toolkit/resources/manifests/package/pkggen_core_x86_64.txt
@@ -155,7 +155,7 @@ npth-1.6-3.cm1.x86_64.rpm
 pinentry-1.1.0-3.cm1.x86_64.rpm
 gnupg2-2.2.20-3.cm1.x86_64.rpm
 gpgme-1.13.1-5.cm1.x86_64.rpm
-mariner-repos-1.0-9.cm1.noarch.rpm
+mariner-repos-1.0-10.cm1.noarch.rpm
 libffi-3.2.1-11.cm1.x86_64.rpm
 libtasn1-4.14-2.cm1.x86_64.rpm
 p11-kit-0.23.16.1-2.cm1.x86_64.rpm
diff --git a/toolkit/resources/manifests/package/toolchain_aarch64.txt b/toolkit/resources/manifests/package/toolchain_aarch64.txt
index 2799b0b2ffd..3c307b7f71d 100644
--- a/toolkit/resources/manifests/package/toolchain_aarch64.txt
+++ b/toolkit/resources/manifests/package/toolchain_aarch64.txt
@@ -238,7 +238,8 @@ make-4.2.1-4.cm1.aarch64.rpm
 make-debuginfo-4.2.1-4.cm1.aarch64.rpm
 mariner-check-macros-1.0-3.cm1.noarch.rpm
 mariner-release-1.0-9.cm1.noarch.rpm
-mariner-repos-1.0-9.cm1.noarch.rpm
+mariner-repos-1.0-10.cm1.noarch.rpm
+mariner-repos-preview-1.0-10.cm1.noarch.rpm
 mariner-rpm-macros-1.0-3.cm1.noarch.rpm
 meson-0.49.2-1.cm1.noarch.rpm
 mpfr-4.0.1-3.cm1.aarch64.rpm
diff --git a/toolkit/resources/manifests/package/toolchain_x86_64.txt b/toolkit/resources/manifests/package/toolchain_x86_64.txt
index b60f46796cd..17f17a58220 100644
--- a/toolkit/resources/manifests/package/toolchain_x86_64.txt
+++ b/toolkit/resources/manifests/package/toolchain_x86_64.txt
@@ -238,7 +238,8 @@ make-4.2.1-4.cm1.x86_64.rpm
 make-debuginfo-4.2.1-4.cm1.x86_64.rpm
 mariner-check-macros-1.0-3.cm1.noarch.rpm
 mariner-release-1.0-9.cm1.noarch.rpm
-mariner-repos-1.0-9.cm1.noarch.rpm
+mariner-repos-1.0-10.cm1.noarch.rpm
+mariner-repos-preview-1.0-10.cm1.noarch.rpm
 mariner-rpm-macros-1.0-3.cm1.noarch.rpm
 meson-0.49.2-1.cm1.noarch.rpm
 mpfr-4.0.1-3.cm1.x86_64.rpm
diff --git a/toolkit/resources/manifests/package/update_manifests.sh b/toolkit/resources/manifests/package/update_manifests.sh
index c80f327ff3d..6b5a3ee3d2e 100755
--- a/toolkit/resources/manifests/package/update_manifests.sh
+++ b/toolkit/resources/manifests/package/update_manifests.sh
@@ -77,6 +77,7 @@ remove_packages_for_pkggen_core () {
     sed -i '/libxslt/d' $TmpPkgGen
     sed -i '/Linux-PAM/d' $TmpPkgGen
     sed -i '/lua-devel/d' $TmpPkgGen
+    sed -i '/mariner-repos-preview/d' $TmpPkgGen
     sed -i '/npth-[[:alpha:]]/d' $TmpPkgGen
     sed -i '/pcre-[0-9]/d' $TmpPkgGen
     sed -i '/pcre-devel/d' $TmpPkgGen