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Add whatsnew note for GH-22904 (#24672)

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Dennis Sweeney 2021-02-28 16:32:04 -05:00 • committed by GitHub
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@ -615,6 +615,11 @@ Optimizations
bytecode level. It is now around 100% faster to create a function with parameter
annotations. (Contributed by Yurii Karabas and Inada Naoki in :issue:`42202`)
* Substring search functions such as ``str1 in str2`` and ``str2.find(str1)``
now sometimes use Crochemore & Perrin's "Two-Way" string searching
algorithm to avoid quadratic behavior on long strings. (Contributed
by Dennis Sweeney in :issue:`41972`)
Deprecated
==========