Let's try to calculate the prerelease label automatically in the future (#17123)

Author: marcpopMSFT

eng/Versions.props

@@ -10,13 +10,16 @@
     <VersionSDKMinor>1</VersionSDKMinor>
     <VersionFeature>00</VersionFeature>
     <VersionPrefix>$(VersionMajor).$(VersionMinor).$(VersionSDKMinor)$(VersionFeature)</VersionPrefix>
-    <PreReleaseVersionLabel>rc</PreReleaseVersionLabel>
-    <PreReleaseVersionIteration>1</PreReleaseVersionIteration>
     <MajorMinorVersion>$(VersionMajor).$(VersionMinor)</MajorMinorVersion>
     <CliProductBandVersion>$(MajorMinorVersion).$(VersionSDKMinor)</CliProductBandVersion>
     <!-- Enable to remove prerelease label. -->
     <StabilizePackageVersion Condition="'$(StabilizePackageVersion)' == ''">false</StabilizePackageVersion>
     <DotNetFinalVersionKind Condition="'$(StabilizePackageVersion)' == 'true'">release</DotNetFinalVersionKind>
+    <!-- Calculate prerelease label -->
+    <PreReleaseVersionLabel Condition="'$(StabilizePackageVersion)' != 'true'">rc</PreReleaseVersionLabel>
+    <PreReleaseVersionLabel Condition="'$(StabilizePackageVersion)' == 'true' and '$(VersionFeature)' == '00'">rtm</PreReleaseVersionLabel>
+    <PreReleaseVersionLabel Condition="'$(StabilizePackageVersion)' == 'true' and '$(VersionFeature)' != '00'">servicing</PreReleaseVersionLabel>
+    <PreReleaseVersionIteration Condition="'$(StabilizePackageVersion)' != 'true'">1</PreReleaseVersionIteration>
   </PropertyGroup>
   <PropertyGroup>
     <VersionFeature21>30</VersionFeature21>