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-rw-r--r--docs/ReleaseNotes.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 1e45a13ef9..01702023c5 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -50,6 +50,12 @@ Major New Features
was added. Please refer to the :ref:`release-notes-ubsan` section of the
release notes for the details.
+- Preliminary/experimental support for DWARF v5 debugging information. If you
+ compile with ``-gdwarf-5 -O0`` you should get fully conforming DWARF v5
+ information, including the new .debug_names accelerator table. Type units
+ and split DWARF are known not to conform, and higher optimization levels
+ will likely get a mix of v4 and v5 formats.
+
Improvements to Clang's diagnostics
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^