diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index e0895bd..188d3fc 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -28,9 +28,9 @@ jobs:
     runs-on: ubuntu-latest
     env:
       LLVM_INSTALL_PATH: ~/llvm
-      LLVM_VERSION: "18"
-      LLVM_VERSION_IN_FEATURE: "18-1"
-      LLVM_LIB_NAME: "libLLVM.so.18.1"
+      LLVM_VERSION: "19"
+      LLVM_VERSION_IN_FEATURE: "19-1"
+      LLVM_LIB_NAME: "libLLVM.so.19.1"
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v2
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 22d46f7..8d3d4e1 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -24,6 +24,7 @@ jobs:
           - ["16", "16-0", "v16.0.2-rust-1.71/llvm-lld-16.0.2-rust-1.71-linux-x86_64.tar.gz", "libLLVM-16.so"]
           - ["17", "17-0", "v17.0.6-rust-1.75/llvm-lld-17.0.6-rust-1.75-linux-x86_64.tar.gz", "libLLVM-17.so"]
           - ["18", "18-1", "v18.1.2-rust-1.78/llvm-lld-18.1.2-rust-1.78-linux-x86_64.tar.gz", "libLLVM.so.18.1"]
+          - ["19", "19-1", "v19.1.5-rust-1.84/llvm-lld-19.1.5-rust-1.84-linux-x86_64.tar.gz", "libLLVM.so.19.1"]
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v2
@@ -114,6 +115,7 @@ jobs:
           - ["16", "16-0", "1.71", "v16.0.2-rust-1.71/llvm-lld-16.0.2-rust-1.71-linux-x86_64.tar.gz", "libLLVM-16.so"]
           - ["17", "17-0", "1.75", "v17.0.6-rust-1.75/llvm-lld-17.0.6-rust-1.75-linux-x86_64.tar.gz", "libLLVM-17.so"]
           - ["18", "18-1", "1.78", "v18.1.2-rust-1.78/llvm-lld-18.1.2-rust-1.78-linux-x86_64.tar.gz", "libLLVM.so.18.1"]
+          - ["19", "19-1", "1.84", "v19.1.5-rust-1.84/llvm-lld-19.1.5-rust-1.84-linux-x86_64.tar.gz", "libLLVM.so.19.1"]
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v2
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index ea2fd58..454f0c5 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -23,6 +23,7 @@ jobs:
           - ["16", "16-0", "v16.0.2-rust-1.71/llvm-lld-16.0.2-rust-1.71-macos-x86_64.tar.gz", "macos-13"]
           - ["17", "17-0", "v17.0.6-rust-1.75/llvm-lld-17.0.6-rust-1.75-macos-x86_64.tar.gz", "macos-13"]
           - ["18", "18-1", "v18.1.2-rust-1.78/llvm-lld-18.1.2-rust-1.78-macos-arm64.tar.gz", "macos-latest"]
+          - ["19", "19-1", "v19.1.5-rust-1.84/llvm-lld-19.1.5-rust-1.84-macos-arm64.tar.gz", "macos-latest"]
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v2
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 612647b..2942aff 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -36,9 +36,9 @@ jobs:
     runs-on: ubuntu-latest
     env:
       LLVM_INSTALL_PATH: ~/llvm
-      LLVM_VERSION: "18"
-      LLVM_VERSION_IN_FEATURE: "18-1"
-      LLVM_LIB_NAME: "libLLVM.so.18.1"
+      LLVM_VERSION: "19"
+      LLVM_VERSION_IN_FEATURE: "19-1"
+      LLVM_LIB_NAME: "libLLVM.so.19.1"
     steps:
       - name: Checkout the repository
         uses: actions/checkout@v4
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index c38f613..7202215 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -23,6 +23,7 @@ jobs:
           - ["16", "16-0", "v16.0.2-rust-1.71/llvm-lld-16.0.2-rust-1.71-windows-x86_64.7z"]
           - ["17", "17-0", "v17.0.6-rust-1.75/llvm-lld-17.0.6-rust-1.75-windows-x86_64.7z"]
           - ["18", "18-1", "v18.1.2-rust-1.78/llvm-lld-18.1.2-rust-1.78-windows-x86_64.7z"]
+          - ["19", "19-1", "v19.1.5-rust-1.84/llvm-lld-19.1.5-rust-1.84-windows-x86_64.7z"]
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v2
@@ -112,6 +113,7 @@ jobs:
           - ["16", "16-0", "1.71", "v16.0.2-rust-1.71/llvm-lld-16.0.2-rust-1.71-windows-x86_64.7z"]
           - ["17", "17-0", "1.75", "v17.0.6-rust-1.75/llvm-lld-17.0.6-rust-1.75-windows-x86_64.7z"]
           - ["18", "18-1", "1.78", "v18.1.2-rust-1.78/llvm-lld-18.1.2-rust-1.78-windows-x86_64.7z"]
+          - ["19", "19-1", "1.84", "v19.1.5-rust-1.84/llvm-lld-19.1.5-rust-1.84-windows-x86_64.7z"]
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v2
diff --git a/Cargo.toml b/Cargo.toml
index 3061bb4..5c2d779 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,3 +1,6 @@
 [workspace]
 resolver = "2"
 members = ["llvm-plugin", "llvm-plugin-macros"]
+
+[patch.crates-io]
+inkwell = { git = "https://github.com/stevefan1999-personal/inkwell" }
diff --git a/README.md b/README.md
index 725a64c..c78564e 100644
--- a/README.md
+++ b/README.md
@@ -27,10 +27,10 @@ When importing this crate in your `Cargo.toml`, you will need to specify the LLV
 
 ```toml
 [dependencies]
-llvm-plugin = { version = "0.6", features = ["llvm18-1"] }
+llvm-plugin = { version = "0.6", features = ["llvm19-1"] }
 ```
 
-Supported versions: LLVM 10-18 mapping to a cargo feature flag `llvmX-Y` where `X` and `Y` are the LLVM major and minor versions.
+Supported versions: LLVM 10-19 mapping to a cargo feature flag `llvmX-Y` where `X` and `Y` are the LLVM major and minor versions.
 
 ## Getting Started
 
diff --git a/examples/strings.rs b/examples/strings.rs
index 7b8cfb8..ed1d2bc 100644
--- a/examples/strings.rs
+++ b/examples/strings.rs
@@ -71,12 +71,12 @@ fn encode_global_strings<'a>(module: &mut Module<'a>) -> Vec<GlobalString<'a>> {
             _ => None,
         })
         .filter(|(_, _, arr)| {
-            // needs to be called before `get_string_constant`, otherwise it may crash
+            // needs to be called before `as_const_string`, otherwise it may crash
             arr.is_const_string()
         })
         .filter_map(|(global, stru, arr)| {
             // we ignore non-UTF8 strings, since they are probably not human-readable
-            let s = arr.get_string_constant().and_then(|s| s.to_str().ok())?;
+            let s = arr.as_const_string().and_then(|s| str::from_utf8(s).ok())?;
             let encoded_str = s.bytes().map(|c| c + 1).collect::<Vec<_>>();
             Some((global, stru, encoded_str))
         })
@@ -156,6 +156,7 @@ fn create_decode_fn<'a>(module: &mut Module<'a>) -> FunctionValue<'a> {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     )))]
     let var10 = unsafe {
         builder.build_gep(
@@ -170,6 +171,7 @@ fn create_decode_fn<'a>(module: &mut Module<'a>) -> FunctionValue<'a> {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     let var10 = unsafe {
         builder.build_gep(
@@ -185,6 +187,7 @@ fn create_decode_fn<'a>(module: &mut Module<'a>) -> FunctionValue<'a> {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     )))]
     let var11 = builder.build_load(phi1.as_basic_value().into_pointer_value(), "");
     #[cfg(any(
@@ -192,6 +195,7 @@ fn create_decode_fn<'a>(module: &mut Module<'a>) -> FunctionValue<'a> {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     let var11 = builder
         .build_load(cx.i8_type(), phi1.as_basic_value().into_pointer_value(), "")
@@ -254,6 +258,7 @@ fn create_decode_stub<'a>(
                     feature = "llvm16-0",
                     feature = "llvm17-0",
                     feature = "llvm18-1",
+                    feature = "llvm19-1",
                 )))]
                 let s = builder
                     .build_struct_gep(gs.as_pointer_value(), id, "")
@@ -263,6 +268,7 @@ fn create_decode_stub<'a>(
                     feature = "llvm16-0",
                     feature = "llvm17-0",
                     feature = "llvm18-1",
+                    feature = "llvm19-1",
                 ))]
                 let s = {
                     let i8_ty_ptr = cx.i8_type().ptr_type(AddressSpace::default());
diff --git a/llvm-plugin/Cargo.toml b/llvm-plugin/Cargo.toml
index ac49a8f..5344282 100644
--- a/llvm-plugin/Cargo.toml
+++ b/llvm-plugin/Cargo.toml
@@ -32,7 +32,8 @@ llvm14-0 = ["inkwell/llvm14-0-no-llvm-linking"]
 llvm15-0 = ["inkwell/llvm15-0-no-llvm-linking"]
 llvm16-0 = ["inkwell/llvm16-0-no-llvm-linking"]
 llvm17-0 = ["inkwell/llvm17-0-no-llvm-linking"]
-llvm18-1 = ["inkwell/llvm18-0-no-llvm-linking"]
+llvm18-1 = ["inkwell/llvm18-1-no-llvm-linking"]
+llvm19-1 = ["inkwell/llvm19-1-no-llvm-linking"]
 
 target-x86 = ["inkwell/target-x86"]
 target-arm = ["inkwell/target-arm"]
@@ -53,7 +54,7 @@ target-riscv = ["inkwell/target-riscv"]
 target-all = ["inkwell/target-all"]
 
 [dependencies]
-inkwell = "0.5"
+inkwell = "0.6"
 llvm-plugin-macros = { path = "../llvm-plugin-macros", version = "0.2", optional = true }
 
 [build-dependencies]
diff --git a/llvm-plugin/build.rs b/llvm-plugin/build.rs
index 6ca43b5..ac1aad3 100644
--- a/llvm-plugin/build.rs
+++ b/llvm-plugin/build.rs
@@ -217,6 +217,8 @@ mod llvm_sys {
             (17, 0)
         } else if cfg!(feature = "llvm18-1") {
             (18, 1)
+        } else if cfg!(feature = "llvm19-1") {
+            (19, 1)
         } else {
             panic!("Missing llvm* feature")
         }
diff --git a/llvm-plugin/cpp/.clang-tidy b/llvm-plugin/cpp/.clang-tidy
index 33a45c9..51dc04f 100644
--- a/llvm-plugin/cpp/.clang-tidy
+++ b/llvm-plugin/cpp/.clang-tidy
@@ -1,5 +1,5 @@
 # https://github.com/llvm/llvm-project/blob/main/.clang-tidy
-Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,-misc-no-recursion,readability-identifier-naming'
+Checks: '-*,clang-diagnostic-*,llvm-*,misc-*,-misc-const-correctness,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,-misc-no-recursion,-misc-use-anonymous-namespace,readability-identifier-naming,-misc-include-cleaner'
 CheckOptions:
   - key:             readability-identifier-naming.ClassCase
     value:           CamelCase
@@ -7,6 +7,10 @@ CheckOptions:
     value:           CamelCase
   - key:             readability-identifier-naming.FunctionCase
     value:           camelBack
+  # Exclude from scanning as this is an exported symbol used for fuzzing
+  # throughout the code base.
+  - key:             readability-identifier-naming.FunctionIgnoredRegexp
+    value:           "LLVMFuzzerTestOneInput"
   - key:             readability-identifier-naming.MemberCase
     value:           CamelCase
   - key:             readability-identifier-naming.ParameterCase
diff --git a/llvm-plugin/src/ffi.rs b/llvm-plugin/src/ffi.rs
index 59d1f05..b0b93b4 100644
--- a/llvm-plugin/src/ffi.rs
+++ b/llvm-plugin/src/ffi.rs
@@ -9,6 +9,7 @@ extern "C" {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub(crate) fn passBuilderAddFullLinkTimeOptimizationLastEPCallback(
         builder: *mut c_void,
@@ -22,6 +23,7 @@ extern "C" {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub(crate) fn passBuilderAddFullLinkTimeOptimizationEarlyEPCallback(
         builder: *mut c_void,
@@ -35,6 +37,7 @@ extern "C" {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub(crate) fn passBuilderAddOptimizerEarlyEPCallback(
         builder: *mut c_void,
@@ -52,6 +55,7 @@ extern "C" {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub(crate) fn passBuilderAddOptimizerLastEPCallback(
         builder: *mut c_void,
@@ -68,6 +72,7 @@ extern "C" {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub(crate) fn passBuilderAddPipelineEarlySimplificationEPCallback(
         builder: *mut c_void,
@@ -84,6 +89,7 @@ extern "C" {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub(crate) fn passBuilderAddPipelineStartEPCallback(
         builder: *mut c_void,
@@ -156,6 +162,7 @@ extern "C" {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub(crate) fn modulePassManagerIsEmpty(manager: *mut c_void) -> bool;
 
@@ -174,6 +181,7 @@ extern "C" {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub(crate) fn functionPassManagerIsEmpty(manager: *mut c_void) -> bool;
 
diff --git a/llvm-plugin/src/pass_builder.rs b/llvm-plugin/src/pass_builder.rs
index 86059ac..214a003 100644
--- a/llvm-plugin/src/pass_builder.rs
+++ b/llvm-plugin/src/pass_builder.rs
@@ -324,6 +324,7 @@ impl PassBuilder {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub fn add_pipeline_start_ep_callback<T>(&mut self, cb: T)
     where
@@ -375,6 +376,7 @@ impl PassBuilder {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub fn add_pipeline_early_simplification_ep_callback<T>(&mut self, cb: T)
     where
@@ -427,6 +429,7 @@ impl PassBuilder {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub fn add_optimizer_last_ep_callback<T>(&mut self, cb: T)
     where
@@ -475,6 +478,7 @@ impl PassBuilder {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub fn add_full_lto_early_ep_callback<T>(&mut self, cb: T)
     where
@@ -523,6 +527,7 @@ impl PassBuilder {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub fn add_full_lto_last_ep_callback<T>(&mut self, cb: T)
     where
@@ -571,6 +576,7 @@ impl PassBuilder {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub fn add_optimizer_early_ep_callback<T>(&mut self, cb: T)
     where
diff --git a/llvm-plugin/src/pass_manager.rs b/llvm-plugin/src/pass_manager.rs
index c3e6251..143fed8 100644
--- a/llvm-plugin/src/pass_manager.rs
+++ b/llvm-plugin/src/pass_manager.rs
@@ -72,6 +72,7 @@ impl ModulePassManager {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub fn is_empty(&self) -> bool {
         unsafe { super::modulePassManagerIsEmpty(self.inner) }
@@ -143,6 +144,7 @@ impl FunctionPassManager {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     pub fn is_empty(&self) -> bool {
         unsafe { super::functionPassManagerIsEmpty(self.inner) }
diff --git a/tests/plugins/Cargo.toml b/tests/plugins/Cargo.toml
index 719540d..ff67b0c 100644
--- a/tests/plugins/Cargo.toml
+++ b/tests/plugins/Cargo.toml
@@ -10,3 +10,6 @@ members = [
     "plugin6",
     "plugin7",
 ]
+
+[patch.crates-io]
+inkwell = { git = "https://github.com/stevefan1999-personal/inkwell" }
diff --git a/tests/plugins/plugin1-lld/Cargo.toml b/tests/plugins/plugin1-lld/Cargo.toml
index 1b4c90a..739f73a 100644
--- a/tests/plugins/plugin1-lld/Cargo.toml
+++ b/tests/plugins/plugin1-lld/Cargo.toml
@@ -18,6 +18,7 @@ llvm15-0 = ["llvm-plugin/llvm15-0"]
 llvm16-0 = ["llvm-plugin/llvm16-0"]
 llvm17-0 = ["llvm-plugin/llvm17-0"]
 llvm18-1 = ["llvm-plugin/llvm18-1"]
+llvm19-1 = ["llvm-plugin/llvm19-1"]
 
 target-x86 = ["llvm-plugin/target-x86"]
 target-arm = ["llvm-plugin/target-arm"]
diff --git a/tests/plugins/plugin1/Cargo.toml b/tests/plugins/plugin1/Cargo.toml
index aa50e4d..64a7a0a 100644
--- a/tests/plugins/plugin1/Cargo.toml
+++ b/tests/plugins/plugin1/Cargo.toml
@@ -19,6 +19,7 @@ llvm15-0 = ["llvm-plugin/llvm15-0"]
 llvm16-0 = ["llvm-plugin/llvm16-0"]
 llvm17-0 = ["llvm-plugin/llvm17-0"]
 llvm18-1 = ["llvm-plugin/llvm18-1"]
+llvm19-1 = ["llvm-plugin/llvm19-1"]
 
 target-x86 = ["llvm-plugin/target-x86"]
 target-arm = ["llvm-plugin/target-arm"]
diff --git a/tests/plugins/plugin2/Cargo.toml b/tests/plugins/plugin2/Cargo.toml
index 11a2a9a..93bb3c5 100644
--- a/tests/plugins/plugin2/Cargo.toml
+++ b/tests/plugins/plugin2/Cargo.toml
@@ -19,6 +19,7 @@ llvm15-0 = ["llvm-plugin/llvm15-0"]
 llvm16-0 = ["llvm-plugin/llvm16-0"]
 llvm17-0 = ["llvm-plugin/llvm17-0"]
 llvm18-1 = ["llvm-plugin/llvm18-1"]
+llvm19-1 = ["llvm-plugin/llvm19-1"]
 
 target-x86 = ["llvm-plugin/target-x86"]
 target-arm = ["llvm-plugin/target-arm"]
diff --git a/tests/plugins/plugin3/Cargo.toml b/tests/plugins/plugin3/Cargo.toml
index 246c5f6..49b39bc 100644
--- a/tests/plugins/plugin3/Cargo.toml
+++ b/tests/plugins/plugin3/Cargo.toml
@@ -19,6 +19,7 @@ llvm15-0 = ["llvm-plugin/llvm15-0"]
 llvm16-0 = ["llvm-plugin/llvm16-0"]
 llvm17-0 = ["llvm-plugin/llvm17-0"]
 llvm18-1 = ["llvm-plugin/llvm18-1"]
+llvm19-1 = ["llvm-plugin/llvm19-1"]
 
 target-x86 = ["llvm-plugin/target-x86"]
 target-arm = ["llvm-plugin/target-arm"]
diff --git a/tests/plugins/plugin4/Cargo.toml b/tests/plugins/plugin4/Cargo.toml
index a024b40..e0fa32d 100644
--- a/tests/plugins/plugin4/Cargo.toml
+++ b/tests/plugins/plugin4/Cargo.toml
@@ -19,6 +19,7 @@ llvm15-0 = ["llvm-plugin/llvm15-0"]
 llvm16-0 = ["llvm-plugin/llvm16-0"]
 llvm17-0 = ["llvm-plugin/llvm17-0"]
 llvm18-1 = ["llvm-plugin/llvm18-1"]
+llvm19-1 = ["llvm-plugin/llvm19-1"]
 
 target-x86 = ["llvm-plugin/target-x86"]
 target-arm = ["llvm-plugin/target-arm"]
diff --git a/tests/plugins/plugin5/Cargo.toml b/tests/plugins/plugin5/Cargo.toml
index a10c583..9934f60 100644
--- a/tests/plugins/plugin5/Cargo.toml
+++ b/tests/plugins/plugin5/Cargo.toml
@@ -19,6 +19,7 @@ llvm15-0 = ["llvm-plugin/llvm15-0"]
 llvm16-0 = ["llvm-plugin/llvm16-0"]
 llvm17-0 = ["llvm-plugin/llvm17-0"]
 llvm18-1 = ["llvm-plugin/llvm18-1"]
+llvm19-1 = ["llvm-plugin/llvm19-1"]
 
 target-x86 = ["llvm-plugin/target-x86"]
 target-arm = ["llvm-plugin/target-arm"]
diff --git a/tests/plugins/plugin6/Cargo.toml b/tests/plugins/plugin6/Cargo.toml
index 3a34fc4..1701a66 100644
--- a/tests/plugins/plugin6/Cargo.toml
+++ b/tests/plugins/plugin6/Cargo.toml
@@ -19,6 +19,7 @@ llvm15-0 = ["llvm-plugin/llvm15-0"]
 llvm16-0 = ["llvm-plugin/llvm16-0"]
 llvm17-0 = ["llvm-plugin/llvm17-0"]
 llvm18-1 = ["llvm-plugin/llvm18-1"]
+llvm19-1 = ["llvm-plugin/llvm19-1"]
 
 target-x86 = ["llvm-plugin/target-x86"]
 target-arm = ["llvm-plugin/target-arm"]
diff --git a/tests/plugins/plugin6/src/lib.rs b/tests/plugins/plugin6/src/lib.rs
index c1b54e6..666a948 100644
--- a/tests/plugins/plugin6/src/lib.rs
+++ b/tests/plugins/plugin6/src/lib.rs
@@ -30,6 +30,7 @@ fn plugin_registrar(builder: &mut PassBuilder) {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     builder.add_pipeline_start_ep_callback(|manager, opt| {
         assert!(matches!(opt, OptimizationLevel::O3));
@@ -44,6 +45,7 @@ fn plugin_registrar(builder: &mut PassBuilder) {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     builder.add_pipeline_early_simplification_ep_callback(|manager, opt| {
         assert!(matches!(opt, OptimizationLevel::O3));
@@ -59,6 +61,7 @@ fn plugin_registrar(builder: &mut PassBuilder) {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     builder.add_optimizer_last_ep_callback(|manager, opt| {
         assert!(matches!(opt, OptimizationLevel::O3));
@@ -70,6 +73,7 @@ fn plugin_registrar(builder: &mut PassBuilder) {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     builder.add_optimizer_early_ep_callback(|manager, opt| {
         assert!(matches!(opt, OptimizationLevel::O3));
diff --git a/tests/plugins/plugin7/Cargo.toml b/tests/plugins/plugin7/Cargo.toml
index f9b5ab1..c3b2545 100644
--- a/tests/plugins/plugin7/Cargo.toml
+++ b/tests/plugins/plugin7/Cargo.toml
@@ -19,6 +19,7 @@ llvm15-0 = ["llvm-plugin/llvm15-0"]
 llvm16-0 = ["llvm-plugin/llvm16-0"]
 llvm17-0 = ["llvm-plugin/llvm17-0"]
 llvm18-1 = ["llvm-plugin/llvm18-1"]
+llvm19-1 = ["llvm-plugin/llvm19-1"]
 
 target-x86 = ["llvm-plugin/target-x86"]
 target-arm = ["llvm-plugin/target-arm"]
diff --git a/tests/plugins/plugin7/src/lib.rs b/tests/plugins/plugin7/src/lib.rs
index 9baa749..71f911b 100644
--- a/tests/plugins/plugin7/src/lib.rs
+++ b/tests/plugins/plugin7/src/lib.rs
@@ -8,6 +8,7 @@ fn plugin_registrar(builder: &mut PassBuilder) {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     builder.add_full_lto_early_ep_callback(|manager, opt| {
         assert!(matches!(opt, llvm_plugin::OptimizationLevel::O3));
@@ -19,6 +20,7 @@ fn plugin_registrar(builder: &mut PassBuilder) {
         feature = "llvm16-0",
         feature = "llvm17-0",
         feature = "llvm18-1",
+        feature = "llvm19-1",
     ))]
     builder.add_full_lto_last_ep_callback(|manager, opt| {
         assert!(matches!(opt, llvm_plugin::OptimizationLevel::O3));