diff --git a/release-notes/3.0/preview/3.0.0-preview-known-issues.md b/release-notes/3.0/preview/3.0.0-preview-known-issues.md
index 3b1d77c2..e9a47840 100644
--- a/release-notes/3.0/preview/3.0.0-preview-known-issues.md
+++ b/release-notes/3.0/preview/3.0.0-preview-known-issues.md
@@ -75,6 +75,23 @@ This document lists known issues for **.NET Core 3.0 Preview releases** which ma
 
     This issue will fixed in a future update.
 
+- **Cancellation is not sent to the server when using the `Grpc.Net.Client` gRPC client**
+
+    Canceling a gRPC client will cancel the call on the client, but will not send a cancellation notification to the server.
+
+    If your gRPC services rely on cancellation you should continue to use the `Grpc.Core` gRPC client until preview 7. This issue will fixed in a future update.
+
+- **`Grpc.Net.ClientFactory` does not reference all required types when used outside of ASP.NET Core**
+
+    The gRPC client factory does not reference the `Microsoft.Extensions.Http` package. If you are using the client factory you will need to include a reference to `Microsoft.Extensions.Http` in the project file.
+
+    ```xml
+    <PackageReference Include="Grpc.Net.ClientFactory" Version="0.1.21-pre1" />
+    <PackageReference Include="Microsoft.Extensions.Http" Version="2.2.1" />
+    ```
+
+    This issue will fixed in a future update.
+
 ### Preview 4
 
 - **[RESOLVED] Server-side Blazor app fails to run on non-Windows platforms**