Date::Manip::Migration5to6(3)				User Contributed Perl Documentation			     Date::Manip::Migration5to6(3)

NAME

       Date::Manip::Migration5to6 - how to upgrade from 5.xx to 6.00

SYNOPSIS

       When upgrading from Date::Manip 5.xx to 6.00, a few changes may be necessary to your scripts.

       The Date::Manip::Changes5to6 document lists in more detail the ways in which Date::Manip changed, but very few of these actually entail
       changes to your script.

       It should be noted that once the changes are made to your script, it will no longer run correctly in 5.xx.

NECESSARY AND SUGGESTED CHANGES

       The following changes are necessary, or strongly suggested:

       Reading config files with Date_Init
	   If you use Date_Init to read any config files (if you do business mode calculations, you probably do), you should remove all of the
	   following config variables from your call to Date_Init:

	      GlobalCnf=FILE
	      PersonalCnf=FILE
	      PathSep=*
	      IgnoreGlobalCnf=*
	      PersonalCnfPath=*

	   and replace them with:

	      ConfigFile=FILE

	   where FILE is now the full path to a config file. Also, the ConfigFile argument should be the first argument in Date_Init.

       Date_ConvTZ
	   The Date_ConvTZ function has changed. It should now take 3 arguments:

	      $date = Date_ConvTZ($date,$from,$to);

	   If $from is not given, it defaults to the local time zone. If $to is not given, it defaults to the local time zone.

	   The date is converted from the $from time zone into the $to time zone. Both should be any time zone (or alias) supported by
	   Date::Manip.

	   The old $errlevel argument is no longer handled.

       ConvTZ and TZ config variables
	   If you use either the ConvTZ or TZ config variables, you should replace them with either SetDate or ForceDate. See the
	   Date::Manip::Config document for information.

       Other deprecated config variables
	   Most of the deprecated config variables continue to function (though they will be removed at a future date). These include:

	      GlobalCnf
	      IgnoreGlobalCnf
	      PersonalCnf
	      PersonalCnfPath
	      PathSep
	      TZ
	      Internal

	   The following variables have been removed. If you use any of them, you may need to modify your scripts:

	      ConvTZ
	      TodayIsMidnight
	      DeltaSigns
	      UpdateCurrTZ

       today, yesterday, tomorrow
	   If you parse the strings "today", "yesterday", or "tomorrow" in order to get the time now, or 24 hours in the past/future, this will no
	   longer work.  These strings now refer strictly to the date (so "today" is the current day at midnight, "yesterday" is the previous day
	   at midnight, etc.).

	   To get the time now, 24 hours ago, or 24 hours in the future, you would need to parse the strings "now", "-24:00:00", or "+24:00:00"
	   respectively.

       Do not use Memoize
	   In 5.xx, it was documented that you could use the module Memoize to speed up Date::Manip, especially when sorting dates.

	   This information is no longer accurate. Using Memoize in conjuction with Date::Manip should have little impact on performance, and may
	   lead to incorrect results, especially if you change config variables.

	   Please see the Date::Manip::Changes5to6 (GENERAL CHANGES) document for more information.

       If you find other instances where it is necessary to modify your script, please email me so that I can add that information to this
       document.

BUGS AND QUESTIONS

       Please refer to the Date::Manip::Problems documentation for information on submitting bug reports or questions to the author.

SEE ALSO

       Date::Manip	  - main module documentation

LICENSE

       This script is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR

       Sullivan Beck (sbeck@cpan.org)

perl v5.12.1							    2010-01-12					     Date::Manip::Migration5to6(3)