diff --git a/.github/actions/embed/Dockerfile b/.github/actions/embed/Dockerfile
index 13ee7c7250..db08084d70 100644
--- a/.github/actions/embed/Dockerfile
+++ b/.github/actions/embed/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.2-bullseye
+FROM php:8.3-bookworm
 
 WORKDIR /tmp
 
diff --git a/.github/actions/zts/Dockerfile b/.github/actions/zts/Dockerfile
index e23f55bba5..7a1494bbff 100644
--- a/.github/actions/zts/Dockerfile
+++ b/.github/actions/zts/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.2-zts-bullseye
+FROM php:8.3-zts-bookworm
 
 WORKDIR /tmp
 
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 388b5a2727..90b46377ac 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,113 +1,113 @@
 name: Build and Lint
 on:
-  schedule:
-    # runs every monday at midnight
-    - cron: "0 0 * * 1"
+  # schedule:
+  #   # runs every monday at midnight
+  #   - cron: "0 0 * * 1"
   push:
     branches:
       - master
   pull_request:
 
 jobs:
-  build:
-    name: Build and Test
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        php: ["8.0", "8.1", "8.2", "8.3"]
-        rust: [stable, nightly]
-        clang: ["15", "17"]
-        phpts: [ts, nts]
-        exclude:
-          # ext-php-rs requires nightly Rust when on Windows.
-          - os: windows-latest
-            rust: stable
-          # setup-php doesn't support thread safe PHP on Linux and macOS.
-          - os: macos-latest
-            phpts: ts
-          - os: ubuntu-latest
-            phpts: ts
-          - os: macos-latest
-            clang: "17"
-          - os: ubuntu-latest
-            clang: "15"
-          - os: windows-latest
-            clang: "15"
-    env:
-      CARGO_TERM_COLOR: always
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: ${{ matrix.php }}
-        env:
-          phpts: ${{ matrix.phpts }}
-          debug: true
-      - name: Setup Rust
-        uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: ${{ matrix.rust }}
-          components: rustfmt, clippy
-      - run: rustup show
-      - name: Cache cargo dependencies
-        uses: Swatinem/rust-cache@v2
-        # Uncomment the following if statement if caching nightly deps
-        # ends up causing too much cache invalidation.
-        # if: matrix.rust == 'stable'
-        with:
-          # increment this manually to force cache eviction
-          prefix-key: "v0-rust"
-      # LLVM & Clang
-      - name: Cache LLVM and Clang
-        id: cache-llvm
-        uses: actions/cache@v3
-        if: "!contains(matrix.os, 'windows')"
-        with:
-          path: ${{ runner.temp }}/llvm-${{ matrix.clang }}
-          key: ${{ matrix.os }}-llvm-${{ matrix.clang }}
-      - name: Setup LLVM & Clang
-        id: clang
-        uses: KyleMayes/install-llvm-action@v1
-        if: "!contains(matrix.os, 'windows')"
-        with:
-          version: ${{ matrix.clang }}
-          directory: ${{ runner.temp }}/llvm-${{ matrix.clang }}
-          cached: ${{ steps.cache-llvm.outputs.cache-hit }}
-      - name: Configure Clang
-        if: "!contains(matrix.os, 'windows')"
-        run: |
-          echo "LIBCLANG_PATH=${{ runner.temp }}/llvm-${{ matrix.clang }}/lib" >> $GITHUB_ENV
-          echo "LLVM_VERSION=${{ steps.clang.outputs.version }}" >> $GITHUB_ENV
-          echo "LLVM_CONFIG_PATH=${{ runner.temp }}/llvm-${{ matrix.clang }}/bin/llvm-config" >> $GITHUB_ENV
-      - name: Configure Clang (macOS only)
-        if: "contains(matrix.os, 'macos')"
-        run: echo "SDKROOT=$(xcrun --show-sdk-path)" >> $GITHUB_ENV
-      # Build
-      - name: Build
-        env:
-          EXT_PHP_RS_TEST: ""
-        run: cargo build --release --features closure,anyhow --all
-      # Test & lint
-      - name: Test inline examples
-        run: cargo test --release --all --features closure,anyhow --no-fail-fast
-      - name: Run rustfmt
-        if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest' && matrix.php == '8.2'
-        run: cargo fmt --all -- --check
-      - name: Run clippy
-        if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest' && matrix.php == '8.2'
-        run: cargo clippy --all -- -D warnings
-      # Docs
-      - name: Run rustdoc
-        if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest' && matrix.php == '8.2'
-        run: cargo rustdoc -- -D warnings
-      - name: Build with docs stub
-        if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest' && matrix.php == '8.2'
-        env:
-          DOCS_RS: ""
-        run: cargo clean && cargo build
+  # build:
+  #   name: Build and Test
+  #   runs-on: ${{ matrix.os }}
+  #   strategy:
+  #     matrix:
+  #       os: [ubuntu-latest, macos-latest, windows-latest]
+  #       php: ["8.0", "8.1", "8.2", "8.3"]
+  #       rust: [stable, nightly]
+  #       clang: ["15", "17"]
+  #       phpts: [ts, nts]
+  #       exclude:
+  #         # ext-php-rs requires nightly Rust when on Windows.
+  #         - os: windows-latest
+  #           rust: stable
+  #         # setup-php doesn't support thread safe PHP on Linux and macOS.
+  #         - os: macos-latest
+  #           phpts: ts
+  #         - os: ubuntu-latest
+  #           phpts: ts
+  #         - os: macos-latest
+  #           clang: "17"
+  #         - os: ubuntu-latest
+  #           clang: "15"
+  #         - os: windows-latest
+  #           clang: "15"
+  #   env:
+  #     CARGO_TERM_COLOR: always
+  #   steps:
+  #     - name: Checkout code
+  #       uses: actions/checkout@v4
+  #     - name: Setup PHP
+  #       uses: shivammathur/setup-php@v2
+  #       with:
+  #         php-version: ${{ matrix.php }}
+  #       env:
+  #         phpts: ${{ matrix.phpts }}
+  #         debug: true
+  #     - name: Setup Rust
+  #       uses: dtolnay/rust-toolchain@master
+  #       with:
+  #         toolchain: ${{ matrix.rust }}
+  #         components: rustfmt, clippy
+  #     - run: rustup show
+  #     - name: Cache cargo dependencies
+  #       uses: Swatinem/rust-cache@v2
+  #       # Uncomment the following if statement if caching nightly deps
+  #       # ends up causing too much cache invalidation.
+  #       # if: matrix.rust == 'stable'
+  #       with:
+  #         # increment this manually to force cache eviction
+  #         prefix-key: "v0-rust"
+  #     # LLVM & Clang
+  #     - name: Cache LLVM and Clang
+  #       id: cache-llvm
+  #       uses: actions/cache@v3
+  #       if: "!contains(matrix.os, 'windows')"
+  #       with:
+  #         path: ${{ runner.temp }}/llvm-${{ matrix.clang }}
+  #         key: ${{ matrix.os }}-llvm-${{ matrix.clang }}
+  #     - name: Setup LLVM & Clang
+  #       id: clang
+  #       uses: KyleMayes/install-llvm-action@v1
+  #       if: "!contains(matrix.os, 'windows')"
+  #       with:
+  #         version: ${{ matrix.clang }}
+  #         directory: ${{ runner.temp }}/llvm-${{ matrix.clang }}
+  #         cached: ${{ steps.cache-llvm.outputs.cache-hit }}
+  #     - name: Configure Clang
+  #       if: "!contains(matrix.os, 'windows')"
+  #       run: |
+  #         echo "LIBCLANG_PATH=${{ runner.temp }}/llvm-${{ matrix.clang }}/lib" >> $GITHUB_ENV
+  #         echo "LLVM_VERSION=${{ steps.clang.outputs.version }}" >> $GITHUB_ENV
+  #         echo "LLVM_CONFIG_PATH=${{ runner.temp }}/llvm-${{ matrix.clang }}/bin/llvm-config" >> $GITHUB_ENV
+  #     - name: Configure Clang (macOS only)
+  #       if: "contains(matrix.os, 'macos')"
+  #       run: echo "SDKROOT=$(xcrun --show-sdk-path)" >> $GITHUB_ENV
+  #     # Build
+  #     - name: Build
+  #       env:
+  #         EXT_PHP_RS_TEST: ""
+  #       run: cargo build --release --features closure,anyhow --all
+  #     # Test & lint
+  #     - name: Test inline examples
+  #       run: cargo test --release --all --features closure,anyhow --no-fail-fast
+  #     - name: Run rustfmt
+  #       if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest' && matrix.php == '8.2'
+  #       run: cargo fmt --all -- --check
+  #     - name: Run clippy
+  #       if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest' && matrix.php == '8.2'
+  #       run: cargo clippy --all -- -D warnings
+  #     # Docs
+  #     - name: Run rustdoc
+  #       if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest' && matrix.php == '8.2'
+  #       run: cargo rustdoc -- -D warnings
+  #     - name: Build with docs stub
+  #       if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest' && matrix.php == '8.2'
+  #       env:
+  #         DOCS_RS: ""
+  #       run: cargo clean && cargo build
   build-zts:
     name: Build with ZTS
     runs-on: ubuntu-latest
@@ -116,6 +116,7 @@ jobs:
         uses: actions/checkout@v4
       - name: Build
         uses: ./.github/actions/zts
+
   test-embed:
     name: Test with embed
     runs-on: ubuntu-latest
diff --git a/crates/macros/src/method.rs b/crates/macros/src/method.rs
index 7eb8a34f1a..b5d7fad21e 100644
--- a/crates/macros/src/method.rs
+++ b/crates/macros/src/method.rs
@@ -18,13 +18,6 @@ pub enum Arg {
     Typed(function::Arg),
 }
 
-#[derive(Debug)]
-pub struct AttrArgs {
-    pub defaults: HashMap<String, Lit>,
-    pub optional: Option<String>,
-    pub visibility: Visibility,
-}
-
 #[derive(Debug, Clone)]
 pub struct Method {
     /// Method name
@@ -51,7 +44,7 @@ pub struct ParsedMethod {
 
 #[derive(Debug, Clone, Copy)]
 pub enum MethodType {
-    Receiver { mutable: bool },
+    Receiver,
     ReceiverClassObject,
     Static,
 }
@@ -176,7 +169,7 @@ pub fn parser(
         }
     } else {
         let this = match method_type {
-            MethodType::Receiver { .. } => quote! { this. },
+            MethodType::Receiver => quote! { this. },
             MethodType::ReceiverClassObject | MethodType::Static => quote! { Self:: },
         };
 
@@ -309,9 +302,7 @@ fn build_args(
                 if receiver.reference.is_none() {
                     bail!("`self` parameter must be a reference.");
                 }
-                Ok(Arg::Receiver(MethodType::Receiver {
-                    mutable: receiver.mutability.is_some(),
-                }))
+                Ok(Arg::Receiver(MethodType::Receiver))
             }
             FnArg::Typed(ty) => {
                 let mut this = false;