update ChangeLog

Author: Enchufa2

ChangeLog

@@ -12,6 +12,12 @@
 	* inst/tinytest/testRcppInterfaceExporter/src/RcppExports.cpp: Idem
 	* inst/tinytest/testRcppInterfaceExporter/inst/include/testRcppInterfaceExporter_RcppExports.h: Idem
 
+	* .github/workflows/werror.yaml: Add -Wdeprecated-copy
+
+	* inst/include/Rcpp/date_datetime/newDateVector.h: Remove redundant custom
+	copy operator to avoid -Wdeprecated-copy warnings
+	* inst/include/Rcpp/date_datetime/newDatetimeVector.h: Idem
+
 2026-09-01  Iñaki Ucar <iucar@fedoraproject.org>
 
 	* .github/workflows/werror.yaml: Add new CI file with -Werror enabled