matplotlib
diff --git a/‎doc/api/next_api_changes/deprecations/22506-AL.rst
+3 b/‎doc/api/next_api_changes/deprecations/22506-AL.rst
+3
@@ -0,0 +1,3 @@
+``MathtextBackend``, ``MathtextBackendAgg``, ``MathtextBackendPath``, ``MathTextWarning``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+... are deprecated with no replacement.
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	+``MathtextBackend``, ``MathtextBackendAgg``, ``MathtextBackendPath``, ``MathTextWarning``
	`2`	`+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`
	`3`	`+... are deprecated with no replacement.`