How to update from phpSocial v2.1.8 to v2.1.9 [Don't forget to back up your database/files before proceeding]
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--------------------------------- MySQL ------------------------------------
Log-in into phpMyAdmin (or your MySQL database) and on the SQL tab run the following queries:

CREATE TABLE IF NOT EXISTS `info_pages` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `title` varchar(64) COLLATE utf8_unicode_ci NOT NULL,
  `url` varchar(64) COLLATE utf8_unicode_ci NOT NULL,
  `public` tinyint(4) NOT NULL,
  `content` text COLLATE utf8_unicode_ci NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1 ;
ALTER TABLE  `settings` 
ADD  `language` VARCHAR( 32 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL AFTER  `smtp_password` ,
ADD  `email_provider` VARCHAR( 256 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL AFTER  `language` ,
ADD  `timezone` VARCHAR( 32 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL AFTER  `email_provider`;
UPDATE `settings` SET `language` = 'english';

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---------------------------------- FTP -------------------------------------
Upload and replace the following files on your server:

/includes/classes.php
/includes/skins.php

/languages/english.php

/themes/dolphin/html/wrapper.html
/themes/dolphin/html/admin/edit_user.html
/themes/dolphin/html/admin/info_pages.html
/themes/dolphin/html/admin/languages.html
/themes/dolphin/html/admin/plugins.html
/themes/dolphin/html/admin/site_settings.html
/themes/dolphin/html/admin/themes.html
/themes/dolphin/html/info/content.html
/themes/dolphin/html/shared/menu.html
/themes/dolphin/images/icons/settings/info.png
/themes/dolphin/images/icons/settings/languages.png
/themes/dolphin/js/functions.js
/themes/dolphin/style.css
/themes/dolphin/info.php

/sources/admin.php
/sources/info.php
/sources/welcome.php

index.php
info.php

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------------------------------- Changelog ----------------------------------
- Added complete support for smiles, image upload, and plugins for Mobile Chat
- Added dynamic custom Info Pages (Admin Panel)
- Added the ability to restrict registration to certain email providers (Admin Panel)
- Added the ability to change the site's logo (Admin Panel)
- Added the ability to change the timezone (Admin Panel)
- Added the ability to change the default language (Admin Panel)
- Improved the language system
- Improved the site translation
- Other minor improvements