diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6461846ee..a33f4ee7d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 ## Current
 
+concurrent-ruby:
+
+* (#1072) Clarify that executor `#kill` may interrupt in-progress tasks.
+
 ## Release v1.3.8 (19 July 2026)
 
 concurrent-ruby:
diff --git a/lib/concurrent-ruby/concurrent/executor/executor_service.rb b/lib/concurrent-ruby/concurrent/executor/executor_service.rb
index 7e344919e..e16f024aa 100644
--- a/lib/concurrent-ruby/concurrent/executor/executor_service.rb
+++ b/lib/concurrent-ruby/concurrent/executor/executor_service.rb
@@ -68,10 +68,9 @@ module Concurrent
 
   # @!macro executor_service_method_kill
   #
-  #   Begin an immediate shutdown. In-progress tasks will be allowed to
-  #   complete but enqueued tasks will be dismissed and no new tasks
-  #   will be accepted. Has no additional effect if the thread pool is
-  #   not running.
+  #   Begin an immediate shutdown. In-progress tasks may be interrupted,
+  #   enqueued tasks will be dismissed, and no new tasks will be accepted.
+  #   Has no additional effect if the thread pool is not running.
 
   # @!macro executor_service_method_wait_for_termination
   #