Improve changelog

Author: alex-kulakov

ChangeLog/6.0.6_dev.txt

@@ -1 +1,8 @@
-[main] Fixed possible cases of broken serialization due to comparers
+[main] Fixed possible cases of broken serialization due to comparers
+[main] Fixed rare cases of insert wrong data into some table columns for SingleTable hierarchies
+[sqlserver] Fixed incorrect DateTimeOffset.Date part extraction
+[sqlserver] Improved translation of DateTimeOffset.LocalDateTime and DateTimeOffset.TimeOfDay parts extraction
+[postgresql] Improved performance of First(), FirstOrDefault() being subqueries
+[postgresql] Improved translation of Math.Ceiling(), Math.Truncate() and Math.Floor()
+[reprocessing] ExecuteActionStrategy.Execute doesn't get external session though Session.Current at all
+[reprocessing] Introduced DomainExtension.WithSession and IExecuteConfiguration WithSession methods to pass external session