Python: Add change note

tausbn · web-flow · commit 7825a2cdfcc9 · 2021-04-13T12:48:45.000Z
diff --git a/python/change-notes/2021-04-13-pep249-api-graphs.md b/python/change-notes/2021-04-13-pep249-api-graphs.md
@@ -0,0 +1,4 @@
+lgtm,codescanning
+* Modelling of libraries supporting PEP249 has been changed to use API graphs. When defining new
+  models, the relevant extension point is now `PEP249ModuleApiNode` in the `PEP249` module, instead
+  of `PEP249Module`. The latter class has now been deprecated.
