diff --git a/CHANGELOG.md b/CHANGELOG.md
index d867ef3..d659caa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+<a name="v0.23.0"></a>
+# [v0.23.0](https://github.com/aDotInTheVoid/rustdoc-types/releases/tag/v0.23.0) - 2023-08-23 
+- Format Version: 27
+- Upstream Commit: [`c90a5b2019e5a862c8fb5ae39dcf6ad5f4c65b09`](https://github.com/rust-lang/rust/commit/c90a5b2019e5a862c8fb5ae39dcf6ad5f4c65b09)
+- Diff: [v0.23.0...v0.22.0](https://github.com/aDotInTheVoid/rustdoc-types/compare/v0.22.0...v0.23.0)
+
 <a name="v0.22.0"></a>
 # [v0.22.0](https://github.com/aDotInTheVoid/rustdoc-types/releases/tag/v0.22.0) - 2023-05-23 
 - Format Version: 26
diff --git a/COMMIT.txt b/COMMIT.txt
index 851392b..198ffe2 100644
--- a/COMMIT.txt
+++ b/COMMIT.txt
@@ -1 +1 @@
-a5e51013753ca75c239403b47af1e605f5af2a64
+c90a5b2019e5a862c8fb5ae39dcf6ad5f4c65b09
diff --git a/Cargo.toml b/Cargo.toml
index 337f683..aac8d10 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rustdoc-types"
-version = "0.22.0"
+version = "0.23.0"
 edition = "2018"
 license = "MIT OR Apache-2.0"
 description = "Types for rustdoc's json output"
diff --git a/src/lib.rs b/src/lib.rs
index 83af9b3..ce700ca 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -8,7 +8,7 @@ use serde::{Deserialize, Serialize};
 use std::path::PathBuf;
 
 /// rustdoc format-version.
-pub const FORMAT_VERSION: u32 = 26;
+pub const FORMAT_VERSION: u32 = 27;
 
 /// A `Crate` is the root of the emitted JSON blob. It contains all type/documentation information
 /// about the language items in the local crate, as well as info about external items to allow
@@ -203,7 +203,7 @@ pub enum ItemKind {
     Enum,
     Variant,
     Function,
-    Typedef,
+    TypeAlias,
     OpaqueTy,
     Constant,
     Trait,
@@ -242,7 +242,7 @@ pub enum ItemEnum {
     TraitAlias(TraitAlias),
     Impl(Impl),
 
-    Typedef(Typedef),
+    TypeAlias(TypeAlias),
     OpaqueTy(OpaqueTy),
     Constant(Constant),
 
@@ -696,7 +696,7 @@ pub enum MacroKind {
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub struct Typedef {
+pub struct TypeAlias {
     #[serde(rename = "type")]
     pub type_: Type,
     pub generics: Generics,