- Added system locale tests to configtest.php script.
- Fixed invalid HTML output that caused error notices in compose.php (#1454409).
- Introduction of centralised initialization file init.php.
- - Added session regenrate id functionality to prohibit session hyijacking.
+ - Added session regenrate id functionality to prohibit session hijacking.
- Fixed sqsession_cookie function for setting HttpOnly cookie attribute.
+ - Reduce references header in a smart way to avoid "header too long"
+ errors from SMTP servers in really long threads (#1167754, #1465342).
+ - Added code that allows to use internal password functions in sqimap_login().
+ Switched plugins to use this code instead of accessing key and otp information
+ directly.
+ - Fixed automatic mailbox creation in left_main.php. 1.5.1 mailbox caching
+ broke detection of unsubscribed special folders (#1461578).
+ - Undo extra sanitizing in decodeHeader() function (#1460638).
+ - Added workaround for broken OpenBSD 3.8+ setlocale() function (#1427512).
+ - Fixed session lockups on large attachment downloads.
+ - Added configtest hook in src/configtest.php.
+ - Improved error handling for the help pages.
+ - Fixed possibility to use single quote in provider name (#1475744).
+ - Improve recovery when EHLO not supported on legacy SMTP servers
+ (#1031455).
Version 1.5.1 (branched on 2006-02-12)
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