If you are updating from a previous version make sure every update info from
the version your are updating from is done.

## version 2.8.2 - Dragon Chapel
+ Add query debug setting to config file.
  See config.default.php for QUERY_DEBUG constant. Add it to your local config.php
+ Add log file path constant to config file.
  See config.default.php for LOGFILE constant. Add it to your local config.php
+ Update your tables with the following SQL statements. Replace #REPLACE_ME# with your current table prefix.

ALTER TABLE `#REPLACE_ME#_link` ADD INDEX (`created`);
ALTER TABLE `#REPLACE_ME#_link` ADD INDEX (`status`);
ALTER TABLE `#REPLACE_ME#_categoryrelation` ADD INDEX (`categoryid`);
ALTER TABLE `#REPLACE_ME#_tagrelation` ADD UNIQUE `tagid` (`linkid`, `tagid`);
ALTER TABLE `#REPLACE_ME#_tagrelation` ADD INDEX (`linkid`);
ALTER TABLE `#REPLACE_ME#_category` ADD INDEX (`name`);

ALTER TABLE `#REPLACE_ME#_category` DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_520_ci;
ALTER TABLE `#REPLACE_ME#_categoryrelation` DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_520_ci;
ALTER TABLE `#REPLACE_ME#_link` DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_520_ci;
ALTER TABLE `#REPLACE_ME#_tag` DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_520_ci;
ALTER TABLE `#REPLACE_ME#_tagrelation` DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_520_ci;
ALTER TABLE `#REPLACE_ME#_tag` CHANGE `name` `name` VARCHAR(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL;
ALTER TABLE `#REPLACE_ME#_link` CHANGE `link` `link` MEDIUMTEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL;
ALTER TABLE `#REPLACE_ME#_link` CHANGE `description` `description` VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL;
ALTER TABLE `#REPLACE_ME#_link` CHANGE `title` `title` VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL;
ALTER TABLE `#REPLACE_ME#_link` CHANGE `image` `image` VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL;
ALTER TABLE `#REPLACE_ME#_link` CHANGE `hash` `hash` CHAR(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL;
ALTER TABLE `#REPLACE_ME#_link` CHANGE `search` `search` TEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL;
ALTER TABLE `#REPLACE_ME#_category` CHANGE `name` `name` VARCHAR(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL;

 + Folder lib/MysqlDump and its contents can be removed.

## version 2.8.1 - Deathwind
+ Added debug setting into config. See config.default.php for DEBUG constant.
  Add it to your local config.php
+ Removed WKHTMLTOPDF_USE and WKHTMLTOPDF_COMMAND from config file.
  and replaced with COMPLETE_PAGE_SCREENSHOT and COMPLETE_PAGE_SCREENSHOT_COMMAND

## version 2.8 - Wastelands
+ Nothing.

## version 2.7 - Sacred Grove
+ New syntax in config file. Switched from define() to const syntax.
  Use config.default.php as a template to update your config.

## version 2.6 - Hypostyle
+ Update config file with the new language setting. See config.default and
  translation.txt for more information
+ Run update search index to use the URL within the search index for your existing data.

## version 2.5 - Winnowing Hall
+ Update config file with the two new constants. See config.default and
  snapshots-of-linked-webpage.txt for more information
  define('WKHTMLTOPDF_USE',false);
  define('WKHTMLTOPDF_COMMAND','/absolute/path/to/wkhtmltoimage');

## version 2.4 - Seven Portals (2020-02-16)
+ Run (after authentication) at /index.php?p=stats the "Search index update"
  to make the search work again correctly. At success, there is no confirmation.
  To validate you can now search for single words case-insensitive.

+ Update config file with two new settings. See config.default for more info
  define('EMAIL_JOB_PROTECT', false);
  define('EMAIL_JOB_PROTECT_SECRET', 'SOME_SECRET_STRING');

+ All files in webroot/asset/js/ EXCEPT the new editlink.js can be removed