diff --git a/crates/apollo-compiler/CHANGELOG.md b/crates/apollo-compiler/CHANGELOG.md
index 0a5e77b79..916ba3481 100644
--- a/crates/apollo-compiler/CHANGELOG.md
+++ b/crates/apollo-compiler/CHANGELOG.md
@@ -16,6 +16,39 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## Maintenance
 ## Documentation -->
+# [0.9.4](https://crates.io/crates/apollo-compiler/0.9.4) - 2023-06-05
+
+## Features
+- accept any primitive value type for custom scalar validation, by [lrlna] in [pull/575]
+
+  If you provide a value to a custom scalar in your GraphQL source text, apollo-compiler
+  now accepts any value type. Previously it was not possible to write values for custom
+  scalars into a query or schema because the value you wrote would never match the custom
+  scalar type.
+
+  This now works:
+  ```graphql
+  scalar UserID @specifiedBy(url: "https://my-app.net/api-docs/users#id")
+  type Query {
+    username (id: UserID): String
+  }
+  ```
+  ```graphql
+  {
+    username(id: 575)
+  }
+  ```
+
+- add type name to the `UndefinedField` diagnostic data, by [goto-bus-stop] in [pull/577]
+
+  When querying a field that does not exist, the type name that's being queried is stored on
+  the diagnostic, so you can use it when handling the error.
+
+[lrlna]: https://github.com/lrlna
+[goto-bus-stop]: https://github.com/goto-bus-stop
+[pull/575]: https://github.com/apollographql/apollo-rs/pull/575
+[pull/577]: https://github.com/apollographql/apollo-rs/pull/577
+
 # [0.9.3](https://crates.io/crates/apollo-compiler/0.9.3) - 2023-05-26
 
 ## Fixes
diff --git a/crates/apollo-compiler/Cargo.toml b/crates/apollo-compiler/Cargo.toml
index 419be8816..b82ae93d5 100644
--- a/crates/apollo-compiler/Cargo.toml
+++ b/crates/apollo-compiler/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "apollo-compiler"
-version = "0.9.3"
+version = "0.9.4"
 authors = ["Irina Shestak <shestak.irina@gmail.com>"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/apollographql/apollo-rs"
diff --git a/crates/apollo-compiler/README.md b/crates/apollo-compiler/README.md
index 686d5453c..3112bb128 100644
--- a/crates/apollo-compiler/README.md
+++ b/crates/apollo-compiler/README.md
@@ -33,7 +33,7 @@ Or add this to your `Cargo.toml` for a manual installation:
 ```toml
 # Just an example, change to the necessary package version.
 [dependencies]
-apollo-compiler = "0.9.3"
+apollo-compiler = "0.9.4"
 ```
 
 ## Rust versions