diff --git a/build/repo.props b/build/repo.props
index 097feaba63..38e1626110 100644
--- a/build/repo.props
+++ b/build/repo.props
@@ -15,6 +15,7 @@
   <PropertyGroup>
     <!-- These properties are use by the automation that updates dependencies.props -->
     <LineupPackageId>Internal.AspNetCore.Universe.Lineup</LineupPackageId>
+    <LineupPackageVersion>2.1.0-rc1-*</LineupPackageVersion>
     <LineupPackageRestoreSource>https://dotnet.myget.org/F/aspnetcore-dev/api/v3/index.json</LineupPackageRestoreSource>
   </PropertyGroup>
 
diff --git a/clients/ts/signalr-protocol-msgpack/package-lock.json b/clients/ts/signalr-protocol-msgpack/package-lock.json
index 064dcdcba1..84c50c6f60 100644
--- a/clients/ts/signalr-protocol-msgpack/package-lock.json
+++ b/clients/ts/signalr-protocol-msgpack/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@aspnet/signalr-protocol-msgpack",
-  "version": "1.1.0-preview1-t000",
+  "version": "1.0.0-rc1-t000",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/clients/ts/signalr-protocol-msgpack/package.json b/clients/ts/signalr-protocol-msgpack/package.json
index a232fc89f8..0dd9d8f47d 100644
--- a/clients/ts/signalr-protocol-msgpack/package.json
+++ b/clients/ts/signalr-protocol-msgpack/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aspnet/signalr-protocol-msgpack",
-  "version": "1.1.0-preview1-t000",
+  "version": "1.0.0-preview3-t000",
   "description": "MsgPack Protocol support for ASP.NET Core SignalR",
   "main": "./dist/cjs/index.js",
   "module": "./dist/esm/index.js",
diff --git a/clients/ts/signalr/package-lock.json b/clients/ts/signalr/package-lock.json
index bded6a88f4..e7e2e130b4 100644
--- a/clients/ts/signalr/package-lock.json
+++ b/clients/ts/signalr/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@aspnet/signalr",
-  "version": "1.1.0-preview1-t000",
+  "version": "1.0.0-rc1-t000",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/clients/ts/signalr/package.json b/clients/ts/signalr/package.json
index c70d4dde4c..4674918d1a 100644
--- a/clients/ts/signalr/package.json
+++ b/clients/ts/signalr/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aspnet/signalr",
-  "version": "1.1.0-preview1-t000",
+  "version": "1.0.0-preview3-t000",
   "description": "ASP.NET Core SignalR Client",
   "main": "./dist/cjs/index.js",
   "module": "./dist/esm/index.js",
diff --git a/korebuild.json b/korebuild.json
index 19b76654e1..9260aaf1e6 100644
--- a/korebuild.json
+++ b/korebuild.json
@@ -1,6 +1,6 @@
 {
-  "$schema": "https://raw.githubusercontent.com/aspnet/BuildTools/dev/tools/korebuild.schema.json",
-  "channel": "dev",
+  "$schema": "https://raw.githubusercontent.com/aspnet/BuildTools/release/2.1/tools/korebuild.schema.json",
+  "channel": "release/2.1",
   "toolsets": {
     "nodejs": {
       "required": true,
diff --git a/version.props b/version.props
index 573566501b..3f759a60f9 100644
--- a/version.props
+++ b/version.props
@@ -1,7 +1,7 @@
 <Project>
   <PropertyGroup>
-    <VersionPrefix>1.1.0</VersionPrefix>
-    <VersionSuffix>preview1</VersionSuffix>
+    <VersionPrefix>1.0.0</VersionPrefix>
+    <VersionSuffix>rc1</VersionSuffix>
     <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND '$(VersionSuffix)' == 'rtm' ">$(VersionPrefix)</PackageVersion>
     <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND '$(VersionSuffix)' != 'rtm' ">$(VersionPrefix)-$(VersionSuffix)-final</PackageVersion>
     <BuildNumber Condition="'$(BuildNumber)' == ''">t000</BuildNumber>