Add Python notes

Co-authored-by: Dane Pitkin <[email protected]>

_posts/2024-07-16-17.0.0-release.md

@@ -184,6 +184,9 @@ Thanks for your contributions and participation in the project!
 
 ## Python notes
 
+- Added support for Numpy 2.0 (GH-42170, GH-41924).
+- Added support for Emscripten via Pyodide (GH-41910).
+
 ## R notes
 
 * R functions that users write that use functions that Arrow supports in dataset queries now can be used in queries too. Previously, only functions that used arithmetic operators worked. For example, `time_hours <- function(mins) mins / 60` worked, but `time_hours_rounded <- function(mins) round(mins / 60)` did not; now both work. These are automatic translations rather than true user-defined functions (UDFs); for UDFs, see `register_scalar_function()`. [GH-41223](https://github.com/apache/arrow/issues/41223)