diff --git a/Directory.Build.props b/Directory.Build.props
index 103b6b59..abab9d4a 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -45,7 +45,7 @@ This only works with Kestrel, which is the default server configuration for ASP.
 
   <PropertyGroup>
     <VersionPrefix>0.2.0</VersionPrefix>
-    <VersionSuffix>alpha</VersionSuffix>
+    <VersionSuffix>rc</VersionSuffix>
     <IncludePreReleaseLabelInPackageVersion Condition="'$(IsStableBuild)' != 'true'">true</IncludePreReleaseLabelInPackageVersion>
     <BuildNumber Condition=" '$(BuildNumber)' == '' ">$([MSBuild]::ValueOrDefault($(BUILD_NUMBER), 0))</BuildNumber>
     <VersionSuffix>$(VersionSuffix).$(BuildNumber)</VersionSuffix>
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index b0d8656e..bf1c6cf4 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -20,7 +20,6 @@ jobs:
     displayName: Install .NET Core 3.0
     inputs:
       version: '3.0.x'
-      includePreviewVersions: true
   - task: UseDotNet@2
     displayName: Install .NET Core 2.1
     inputs:
@@ -48,7 +47,6 @@ jobs:
     displayName: Install .NET Core 3.0
     inputs:
       version: '3.0.x'
-      includePreviewVersions: true
   - task: UseDotNet@2
     displayName: Install .NET Core 2.1
     inputs:
diff --git a/src/LetsEncrypt/PublicAPI.Shipped.txt b/src/LetsEncrypt/PublicAPI.Shipped.txt
index 0da582fa..e5b21773 100644
--- a/src/LetsEncrypt/PublicAPI.Shipped.txt
+++ b/src/LetsEncrypt/PublicAPI.Shipped.txt
@@ -1,5 +1,10 @@
 McMaster.AspNetCore.LetsEncrypt.ILetsEncryptServiceBuilder
 McMaster.AspNetCore.LetsEncrypt.ILetsEncryptServiceBuilder.Services.get -> Microsoft.Extensions.DependencyInjection.IServiceCollection
+McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
+McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm.RS256 = 0 -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
+McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm.ES256 = 1 -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
+McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm.ES384 = 2 -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
+McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm.ES512 = 3 -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
 McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions
 McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.AcceptTermsOfService.get -> bool
 McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.AcceptTermsOfService.set -> void
@@ -9,6 +14,8 @@ McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.EmailAddress.get -> string
 McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.EmailAddress.set -> void
 McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.FallbackCertificate.get -> System.Security.Cryptography.X509Certificates.X509Certificate2
 McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.FallbackCertificate.set -> void
+McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.KeyAlgorithm.get -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
+McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.KeyAlgorithm.set -> void
 McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.LetsEncryptOptions() -> void
 McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.UseStagingServer.get -> bool
 McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.UseStagingServer.set -> void
diff --git a/src/LetsEncrypt/PublicAPI.Unshipped.txt b/src/LetsEncrypt/PublicAPI.Unshipped.txt
index f71129de..e69de29b 100644
--- a/src/LetsEncrypt/PublicAPI.Unshipped.txt
+++ b/src/LetsEncrypt/PublicAPI.Unshipped.txt
@@ -1,7 +0,0 @@
-McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.KeyAlgorithm.get -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
-McMaster.AspNetCore.LetsEncrypt.LetsEncryptOptions.KeyAlgorithm.set -> void
-McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
-McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm.RS256 = 0 -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
-McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm.ES256 = 1 -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
-McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm.ES384 = 2 -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
-McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm.ES512 = 3 -> McMaster.AspNetCore.LetsEncrypt.KeyAlgorithm
diff --git a/src/LetsEncrypt/releasenotes.props b/src/LetsEncrypt/releasenotes.props
index f221a7ee..91010d1a 100644
--- a/src/LetsEncrypt/releasenotes.props
+++ b/src/LetsEncrypt/releasenotes.props
@@ -1,9 +1,15 @@
 <Project>
   <PropertyGroup>
     <PackageReleaseNotes Condition="'$(VersionPrefix)' == '0.2.0'">
+Important update! LetsEncrypt.org is deprecating v1 of their protocol, which earlier versions of this package used.
+You should update to 0.2.0 soon to avoid interruption to your ability to automaticaly provision HTTPS certs.
+
+Special thanks to Michal Bičan (@mbican) for updating this package to use the ACME v2 protocol.
+
 Features:
 * @mbican: add API for configuring the private key algorithm (#20)
-      
+* @mbican: update to use ACME v2 protocol (#23)
+
 Bug fixes:
 
 * Fix #19 - handle HTTPS requests that don't have a domain name