bug fixes:
• Some users reported subject lines not being displayed correctly. Specifically there were line breaks causing the subject to span more than one line. This could also occur with other headers but subject was the only one reported.
• corrected issue where headers longer than 4096 were being truncated.
new feature:
• An option is added in settings called "Use OS date/time format instead of Thunderbird". Some users reported that SmartTemplate 4 was not using the custom date format they had set in their operating system. This will give everyone that option if they want to use it.
misc:
• updated all helpfiles 'added recent changes'
• implemented some coding changes suggested by the Mozilla AMO review team.

changes:
• Originally the X:=sent switch would change all variables after it's use for the remainder of the template unless X:=today was used to switch them back. That behavior is now changed such that the X:=sent command only affects the line on which it is being used.
• %datelocal%, %dateshort%, %date_tz% are now affected by the X:=sent and X:=today variables.
bug fixes:
• fix CC line inner Brackets