Update src/bootstrap/src/utils/change_tracker.rs

Co-authored-by: Jakub Beránek <[email protected]>

Author: Hayden602

src/bootstrap/src/utils/change_tracker.rs

@@ -549,6 +549,6 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[
     ChangeInfo {
         change_id: 146458,
         severity: ChangeSeverity::Info,
-        summary: "Set the number of threads for the compiler frontend used during rustc compilation (passed to `-Zthreads`).",
+        summary: "There is now a bootstrap option called `rust.parallel-frontend-threads`, which can be used to set the number of threads for the compiler frontend used during compilation of Rust code.",
     },
 ];