PERF: Parse certain dates in Cython instead of falling back to dateutil.parse (pandas-dev#25922)

Author: ryanreh99

doc/source/whatsnew/v0.25.0.rst

@@ -249,7 +249,11 @@ Performance Improvements
 - Improved performance of :meth:`read_csv` by much faster parsing of ``MM/YYYY`` and ``DD/MM/YYYY`` datetime formats (:issue:`25922`)
 =======
 - Improved performance of :meth:DataFrame.`to_csv` when write datetime dtype data (:issue:`25708`)
+<<<<<<< HEAD
 >>>>>>> f53bb0619... Improved performance of :meth:DataFrame.to_csv when write datetime dtype data (#25765)
+=======
+- Improved performance of :meth:`read_csv` by much faster parsing of MM/YYYY and DD/MM/YYYY datetime formats (:issue:`25922`)
+>>>>>>> 3e90d436e... PERF: Parse certain dates in Cython instead of falling back to dateutil.parse (#25922)
 
 .. _whatsnew_0250.bug_fixes: