diff --git a/CHANGELOG.md b/CHANGELOG.md
index f86403f..afa653b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+<a name="v0.29.0"></a>
+# [v0.29.0](https://github.com/aDotInTheVoid/rustdoc-types/releases/tag/v0.29.0) - 2024-08-01
+
+**Breaking Change**: Removed `OpaqueTy`, `ItemKind::OpaqueTy` and `ItemEnum::OpaqueTy`. These were only generated with rarely used nightly features, so almost all documents will be uneffected ([rust#127276](https://github.com/rust-lang/rust/pull/127276)).
+
+- Format Version: 33
+- Upstream Commit: [`73ac5e0c6e8e0e35229444caf5461c6c079122b4`](https://github.com/rust-lang/rust/commit/73ac5e0c6e8e0e35229444caf5461c6c079122b4)
+- Diff: [v0.28.1...v0.29.0](https://github.com/aDotInTheVoid/rustdoc-types/compare/v0.28.1...v0.29.0)
+
 <a name="v0.28.1"></a>
 # [v0.28.1](https://github.com/aDotInTheVoid/rustdoc-types/releases/tag/v0.28.1) - 2024-08-01
 
diff --git a/COMMIT.txt b/COMMIT.txt
index d33bcc3..3fb02f4 100644
--- a/COMMIT.txt
+++ b/COMMIT.txt
@@ -1 +1 @@
-47b76d8d939be6085e9b1f6fc1a4b959346754a6
+73ac5e0c6e8e0e35229444caf5461c6c079122b4
diff --git a/Cargo.toml b/Cargo.toml
index 5d8bd52..9ea2096 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rustdoc-types"
-version = "0.28.1"
+version = "0.29.0"
 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 041e007..a1e1d01 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,7 +13,7 @@ use serde::{Deserialize, Serialize};
 /// This integer is incremented with every breaking change to the API,
 /// and is returned along with the JSON blob as [`Crate::format_version`].
 /// Consuming code should assert that this value matches the format version(s) that it supports.
-pub const FORMAT_VERSION: u32 = 32;
+pub const FORMAT_VERSION: u32 = 33;
 
 /// The root of the emitted JSON blob.
 ///
@@ -326,7 +326,6 @@ pub enum ItemKind {
     Function,
     /// A type alias declaration, e.g. `type Pig = std::borrow::Cow<'static, str>;`
     TypeAlias,
-    OpaqueTy,
     /// The declaration of a constant, e.g. `const GREETING: &str = "Hi :3";`
     Constant,
     /// A `trait` declaration.
@@ -414,7 +413,6 @@ pub enum ItemEnum {
 
     /// A type alias declaration, e.g. `type Pig = std::borrow::Cow<'static, str>;`
     TypeAlias(TypeAlias),
-    OpaqueTy(OpaqueTy),
     /// The declaration of a constant, e.g. `const GREETING: &str = "Hi :3";`
     Constant {
         /// The type of the constant.
@@ -1200,12 +1198,6 @@ pub struct TypeAlias {
     pub generics: Generics,
 }
 
-#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub struct OpaqueTy {
-    pub bounds: Vec<GenericBound>,
-    pub generics: Generics,
-}
-
 /// A `static` declaration.
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
 pub struct Static {