Release rayon 1.8.0 and rayon-core 1.12.0

.github/workflows/ci.yaml

@@ -89,7 +89,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.67.1
+      - uses: dtolnay/rust-toolchain@1.72.1
         with:
           components: rustfmt
       - run: cargo fmt --all --check

.github/workflows/pr.yaml

@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.67.1
+      - uses: dtolnay/rust-toolchain@1.72.1
         with:
           components: rustfmt
       - run: cargo fmt --all --check

RELEASES.md

@@ -1,3 +1,18 @@
+# Release rayon 1.8.0 / rayon-core 1.12.0 (2023-09-20)
+
+- The minimum supported `rustc` is now 1.63.
+- Added `ThreadPoolBuilder::use_current_thread` to use the builder thread as
+  part of the new thread pool. That thread does not run the pool's main loop,
+  but it may participate in work-stealing if it yields to rayon in some way.
+- Implemented `FromParallelIterator<T>` for `Box<[T]>`, `Rc<[T]>`, and
+  `Arc<[T]>`, as well as `FromParallelIterator<Box<str>>` and
+  `ParallelExtend<Box<str>>` for `String`.
+- `ThreadPoolBuilder::build_scoped` now uses `std::thread::scope`.
+- The default number of threads is now determined using
+  `std::thread::available_parallelism` instead of the `num_cpus` crate.
+- The internal logging facility has been removed, reducing bloat for all users.
+- Many smaller performance tweaks and documentation updates.
+
 # Release rayon 1.7.0 / rayon-core 1.11.0 (2023-03-03)
 
 - The minimum supported `rustc` is now 1.59.

rayon-core/src/sleep/mod.rs

@@ -110,11 +110,9 @@ impl Sleep {
 
     #[cold]
     fn announce_sleepy(&self) -> JobsEventCounter {
-        let counters = self
-            .counters
-            .increment_jobs_event_counter_if(JobsEventCounter::is_active);
-        let jobs_counter = counters.jobs_counter();
-        jobs_counter
+        self.counters
+            .increment_jobs_event_counter_if(JobsEventCounter::is_active)
+            .jobs_counter()
     }
 
     #[cold]