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authorDennis Sweeney <36520290+sweeneyde@users.noreply.github.com>2021-02-28 21:32:04 (GMT)
committerGitHub <noreply@github.com>2021-02-28 21:32:04 (GMT)
commite8f5ddd33e44dae4e0121f87a7bf92d754807e49 (patch)
tree5b828dd322381e5ce4650f1bddffb3a9100b3a96
parent73a85c4e1da42db28e3de57c868d24a089b8d277 (diff)
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Add whatsnew note for GH-22904 (#24672)
-rw-r--r--Doc/whatsnew/3.10.rst5
1 files changed, 5 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index 310554e..12db463 100644
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -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
==========