diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -138,12 +138,23 @@
 Changes to the Debug Info
 ---------------------------------
 
+* The DWARFv5 feature of attaching `DW_AT_default_value` to defaulted template
+  parameters will now be available in any non-strict DWARF mode and in a wider
+  range of cases than previously. (`D139953 <https://reviews.llvm.org/D139953>`_, `D139988 <https://reviews.llvm.org/D139988>`_)
+
+* The `DW_AT_name` on `DW_AT_typedef`s for alias templates will now omit defaulted
+  template parameters. (`D142268 <https://reviews.llvm.org/D142268>`_)
+
 Changes to the LLVM tools
 ---------------------------------
 
 Changes to LLDB
 ---------------------------------
 
+* In the results of commands such as `expr` and `frame var`, type summaries will now
+  omit defaulted template parameters. The full template parameter list can still be
+  viewed with `expr --raw-output`/`frame var --raw-output`. (`D141828 <https://reviews.llvm.org/D141828>`_)
+
 Changes to Sanitizers
 ---------------------