diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f38d3b33e..c2f5af492 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -127,8 +127,8 @@ jobs:
       - uses: actions/checkout@master
       - name: Install Rust
         run: |
-          rustup update 1.31.0 --no-self-update
-          rustup default 1.31.0
+          rustup update 1.60.0 --no-self-update
+          rustup default 1.60.0
       - run: cargo test --verbose --manifest-path tests/Cargo.toml
 
   embedded:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6f251b3f..305518965 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 ## [Unreleased]
 
+## [0.4.19] - 2023-06-10
+
+* Use target_has_atomic instead of the old atomic_cas cfg by @KodrAus in https://github.com/rust-lang/log/pull/555
+* Put MSRV into Cargo.toml by @est31 in https://github.com/rust-lang/log/pull/557
+
 ## [0.4.18] - 2023-05-28
 
 * fix markdown links (again) by @hellow554 in https://github.com/rust-lang/log/pull/513
@@ -239,7 +244,9 @@ version using log 0.4.x to avoid losing module and file information.
 
 Look at the [release tags] for information about older releases.
 
-[Unreleased]: https://github.com/rust-lang-nursery/log/compare/0.4.17...HEAD
+[Unreleased]: https://github.com/rust-lang-nursery/log/compare/0.4.18...HEAD
+[0.4.19]: https://github.com/rust-lang-nursery/log/compare/0.4.18...0.4.19
+[0.4.18]: https://github.com/rust-lang-nursery/log/compare/0.4.17...0.4.18
 [0.4.17]: https://github.com/rust-lang-nursery/log/compare/0.4.16...0.4.17
 [0.4.16]: https://github.com/rust-lang-nursery/log/compare/0.4.15...0.4.16
 [0.4.15]: https://github.com/rust-lang-nursery/log/compare/0.4.13...0.4.15
diff --git a/Cargo.toml b/Cargo.toml
index 5004b08fa..eabb2c4fb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ A lightweight logging facade for Rust
 categories = ["development-tools::debugging"]
 keywords = ["logging"]
 exclude = ["rfcs/**/*"]
-build = "build.rs"
+rust-version = "1.60.0"
 
 [package.metadata.docs.rs]
 features = ["std", "serde", "kv_unstable_std", "kv_unstable_sval", "kv_unstable_serde"]
diff --git a/build.rs b/build.rs
deleted file mode 100644
index 11c26a333..000000000
--- a/build.rs
+++ /dev/null
@@ -1,46 +0,0 @@
-//! This build script detects target platforms that lack proper support for
-//! atomics and sets `cfg` flags accordingly.
-
-use std::env;
-use std::str;
-
-fn main() {
-    let target = match rustc_target() {
-        Some(target) => target,
-        None => return,
-    };
-
-    if target_has_atomic_cas(&target) {
-        println!("cargo:rustc-cfg=atomic_cas");
-    }
-
-    if target_has_atomics(&target) {
-        println!("cargo:rustc-cfg=has_atomics");
-    }
-
-    println!("cargo:rerun-if-changed=build.rs");
-}
-
-fn target_has_atomic_cas(target: &str) -> bool {
-    match target {
-        "thumbv6m-none-eabi"
-        | "msp430-none-elf"
-        | "riscv32i-unknown-none-elf"
-        | "riscv32imc-unknown-none-elf" => false,
-        _ => true,
-    }
-}
-
-fn target_has_atomics(target: &str) -> bool {
-    match target {
-        "thumbv4t-none-eabi"
-        | "msp430-none-elf"
-        | "riscv32i-unknown-none-elf"
-        | "riscv32imc-unknown-none-elf" => false,
-        _ => true,
-    }
-}
-
-fn rustc_target() -> Option<String> {
-    env::var("TARGET").ok()
-}
diff --git a/src/lib.rs b/src/lib.rs
index 4297344e0..c669206a4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -371,7 +371,7 @@ impl AtomicUsize {
         self.v.set(val)
     }
 
-    #[cfg(atomic_cas)]
+    #[cfg(target_has_atomic = "ptr")]
     fn compare_exchange(
         &self,
         current: usize,
@@ -1217,6 +1217,7 @@ where
 ///
 /// Note that `Trace` is the maximum level, because it provides the maximum amount of detail in the emitted logs.
 #[inline]
+#[cfg(target_has_atomic = "ptr")]
 pub fn set_max_level(level: LevelFilter) {
     MAX_LOG_LEVEL_FILTER.store(level as usize, Ordering::Relaxed);
 }
@@ -1285,7 +1286,7 @@ pub fn max_level() -> LevelFilter {
 /// An error is returned if a logger has already been set.
 ///
 /// [`set_logger`]: fn.set_logger.html
-#[cfg(all(feature = "std", atomic_cas))]
+#[cfg(all(feature = "std", target_has_atomic = "ptr"))]
 pub fn set_boxed_logger(logger: Box<dyn Log>) -> Result<(), SetLoggerError> {
     set_logger_inner(|| Box::leak(logger))
 }
@@ -1343,12 +1344,12 @@ pub fn set_boxed_logger(logger: Box<dyn Log>) -> Result<(), SetLoggerError> {
 /// ```
 ///
 /// [`set_logger_racy`]: fn.set_logger_racy.html
-#[cfg(atomic_cas)]
+#[cfg(target_has_atomic = "ptr")]
 pub fn set_logger(logger: &'static dyn Log) -> Result<(), SetLoggerError> {
     set_logger_inner(|| logger)
 }
 
-#[cfg(atomic_cas)]
+#[cfg(target_has_atomic = "ptr")]
 fn set_logger_inner<F>(make_logger: F) -> Result<(), SetLoggerError>
 where
     F: FnOnce() -> &'static dyn Log,