[flang-commits] [flang] [flang][ReleaseNotes] Add `do concurrent` parallelizatio note (PR #182821)

[Kareem Ergawy via flang-commits]

https://github.com/ergawy created https://github.com/llvm/llvm-project/pull/182821

None

>From afe21582c5a4c003c8495e402bf32aefbf58ed29 Mon Sep 17 00:00:00 2001
From: ergawy <kareem.ergawy at amd.com>
Date: Mon, 23 Feb 2026 03:11:37 -0600
Subject: [PATCH] [flang][ReleaseNotes] Add `do concurrent` parallelizatio note

---
 flang/docs/ReleaseNotes.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/flang/docs/ReleaseNotes.md b/flang/docs/ReleaseNotes.md
index 888da4d58b868..477629d393ca0 100644
--- a/flang/docs/ReleaseNotes.md
+++ b/flang/docs/ReleaseNotes.md
@@ -29,6 +29,18 @@ page](https://llvm.org/releases/).
 
 ## Major New Features
 
+### `do concurrent` mapping to OpenMP
+
+Flang has now better support for `do concurrent` parallelization on the CPU and
+GPU. On the CPU, we validated the feature using
+[FIATS'](https://github.com/BerkeleyLab/fiats) inference and training codes. On
+the GPU, we have basic support that is still in progress; we have offload tests
+for 1D and 2D saxpy and also validated using codes that do not use extensive
+user-defined types and/or allocatables.
+
+To use the feature, use `-fdo-concurrent-to-openmp=[none|host|device]`. OpenMP
+must be enabled as well, for example: `-fopenm [--offload-arch=<target_arch>]`.
+
 ## Bug Fixes
 
 ## Non-comprehensive list of changes in this release