diff --git a/llvm/docs/ReleaseNotes.md b/llvm/docs/ReleaseNotes.md
index 142db867b566ec..fd93860a43de71 100644
--- a/llvm/docs/ReleaseNotes.md
+++ b/llvm/docs/ReleaseNotes.md
@@ -355,6 +355,8 @@ Changes to LLDB
 
 * A new setting `target.launch-working-dir` can be used to set a persistent cwd that is used by default by `process launch` and `run`.
 
+* LLDB now parses shared libraries in parallel, resulting in an average 2x speedup when attaching (only available on Darwin platforms) and launching (available on all platforms).
+
 Changes to BOLT
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