Add news fragment

abravalheri · abravalheri · commit e48bbc6718dc · 2023-01-23T11:29:15.000Z
diff --git a/changelog.d/3790.breaking.rst b/changelog.d/3790.breaking.rst
@@ -0,0 +1,5 @@
+Bump vendored version of :pypi:`packaging` to 23.0
+(:pypi:`pyparsing` is no longer required and was removed).
+As a consequence, users will experience a more strict parsing of requirements.
+Specifications that don't comply with :pep:`440` and :pep:`508` will result
+in build errors.
