diff --git a/schema/versions/mysql/10.sql b/schema/versions/mysql/10.sql
new file mode 100644
index 000000000..e951f482f
--- /dev/null
+++ b/schema/versions/mysql/10.sql
@@ -0,0 +1,12 @@
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id,help_text) values('DIGEST_ENABLE', 1, 'false', 'Enable e-mail digest',1,
+'This option enables sending daily digest of new (and unread) headlines on your configured e-mail address');
+
+alter table ttrss_feeds add column include_in_digest bool;
+update ttrss_feeds set include_in_digest = true;
+alter table ttrss_feeds change include_in_digest include_in_digest bool not null;
+alter table ttrss_feeds alter column include_in_digest set default true;
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('CONFIRM_FEED_CATCHUP', 1, 'true', 'Confirm marking feed as read',3);
+
+update ttrss_version set schema_version = 10;
+
diff --git a/schema/versions/mysql/11.sql b/schema/versions/mysql/11.sql
new file mode 100644
index 000000000..690b978eb
--- /dev/null
+++ b/schema/versions/mysql/11.sql
@@ -0,0 +1,18 @@
+begin;
+
+delete FROM ttrss_user_prefs WHERE pref_name = 'DISPLAY_HEADER';
+delete FROM ttrss_user_prefs WHERE pref_name = 'DISPLAY_FOOTER';
+delete FROM ttrss_user_prefs WHERE pref_name = 'ENABLE_SEARCH_TOOLBAR';
+delete FROM ttrss_user_prefs WHERE pref_name = 'USE_COMPACT_STYLESHEET';
+
+delete FROM ttrss_prefs WHERE pref_name = 'DISPLAY_HEADER';
+delete FROM ttrss_prefs WHERE pref_name = 'DISPLAY_FOOTER';
+delete FROM ttrss_prefs WHERE pref_name = 'ENABLE_SEARCH_TOOLBAR';
+delete FROM ttrss_prefs WHERE pref_name = 'USE_COMPACT_STYLESHEET';
+
+insert into ttrss_themes (theme_name, theme_path) values ('Graycube', 'graycube');
+insert into ttrss_themes (theme_name, theme_path) values ('Default (Compact)', 'compact');
+
+update ttrss_version set schema_version = 11;
+
+commit;
diff --git a/schema/versions/mysql/12.sql b/schema/versions/mysql/12.sql
new file mode 100644
index 000000000..73af4e375
--- /dev/null
+++ b/schema/versions/mysql/12.sql
@@ -0,0 +1,12 @@
+alter table ttrss_filters add column action_param varchar(200);
+
+update ttrss_filters set action_param = '';
+
+alter table ttrss_filters change action_param action_param varchar(200) not null;
+alter table ttrss_filters alter column action_param set default '';
+
+insert into ttrss_filter_actions (id,name,description) values (4, 'tag', 
+		'Assign tags');
+
+update ttrss_version set schema_version = 12;
+
diff --git a/schema/versions/mysql/13.sql b/schema/versions/mysql/13.sql
new file mode 100644
index 000000000..ad068c8a2
--- /dev/null
+++ b/schema/versions/mysql/13.sql
@@ -0,0 +1,6 @@
+alter table ttrss_filters add column inverse bool;
+update ttrss_filters set inverse = false;
+alter table ttrss_filters change inverse inverse bool not null;
+alter table ttrss_filters alter column inverse set default false;
+
+update ttrss_version set schema_version = 13;
diff --git a/schema/versions/mysql/3.sql b/schema/versions/mysql/3.sql
new file mode 100644
index 000000000..79860a29c
--- /dev/null
+++ b/schema/versions/mysql/3.sql
@@ -0,0 +1,43 @@
+begin;
+
+alter table ttrss_entries add column num_comments integer;
+
+update ttrss_entries set num_comments = 0;
+
+alter table ttrss_entries change num_comments num_comments integer not null;
+alter table ttrss_entries alter column num_comments set default 0;
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id,help_text) values('COMBINED_DISPLAY_MODE', 1, 'false', 'Combined feed display',2,
+	'Display expanded list of feed articles, instead of separate displays for headlines and article content');
+
+alter table ttrss_feed_categories add column collapsed bool;
+
+update ttrss_feed_categories set collapsed = false;
+
+alter table ttrss_feed_categories change collapsed collapsed bool not null;
+alter table ttrss_feed_categories alter column collapsed set default 0;
+
+alter table ttrss_feeds add column auth_login varchar(250);
+alter table ttrss_feeds add column auth_pass varchar(250);
+
+update ttrss_feeds set auth_login = '';
+update ttrss_feeds set auth_pass = '';
+
+alter table ttrss_feeds change auth_login auth_login varchar(250) not null;
+alter table ttrss_feeds alter column auth_login set default '';
+
+alter table ttrss_feeds change auth_pass auth_pass varchar(250) not null;
+alter table ttrss_feeds alter column auth_pass set default '';
+
+alter table ttrss_users add column email varchar(250);
+
+update ttrss_users set email = '';
+
+alter table ttrss_users change email email varchar(250) not null;
+alter table ttrss_users alter column email set default '';
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('ENABLE_SEARCH_TOOLBAR', 1, 'false', 'Enable search toolbar',2);
+
+update ttrss_version set schema_version = 3;
+
+commit;
diff --git a/schema/versions/mysql/4.sql b/schema/versions/mysql/4.sql
new file mode 100644
index 000000000..6dfc5f82f
--- /dev/null
+++ b/schema/versions/mysql/4.sql
@@ -0,0 +1,17 @@
+begin;
+
+alter table ttrss_feeds add column parent_feed integer;
+alter table ttrss_feeds add foreign key (parent_feed) references ttrss_feeds(id) on delete set null;
+
+alter table ttrss_feeds add column private bool;
+
+update ttrss_feeds set private = false;
+
+alter table ttrss_feeds change private private bool not null;
+alter table ttrss_feeds alter column private set default 0;
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('HIDE_READ_FEEDS', 1, 'false', 'Hide feeds with no unread messages',2);
+
+update ttrss_version set schema_version = 4;
+
+commit;
diff --git a/schema/versions/mysql/5.sql b/schema/versions/mysql/5.sql
new file mode 100644
index 000000000..e3ddb0357
--- /dev/null
+++ b/schema/versions/mysql/5.sql
@@ -0,0 +1,12 @@
+begin;
+
+create table ttrss_scheduled_updates (id integer not null primary key auto_increment,
+	owner_uid integer not null,
+	feed_id integer default null,
+	entered datetime not null,
+	foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE,
+	foreign key (feed_id) references ttrss_feeds(id) ON DELETE CASCADE) TYPE=InnoDB;
+
+update ttrss_version set schema_version = 5;
+
+commit;
diff --git a/schema/versions/mysql/6.sql b/schema/versions/mysql/6.sql
new file mode 100644
index 000000000..1018bcf4d
--- /dev/null
+++ b/schema/versions/mysql/6.sql
@@ -0,0 +1,20 @@
+alter table ttrss_entries add column author varchar(250);
+
+update ttrss_entries set author = '';
+
+alter table ttrss_entries change author author varchar(250) not null;
+alter table ttrss_entries alter column author set default '';
+
+create table ttrss_sessions (id varchar(250) not null primary key,
+	data text,
+	expire integer not null,
+	ip_address varchar(15) not null default '',
+	index (id),
+	index (expire)) TYPE=InnoDB;
+
+delete from ttrss_prefs where pref_name = 'ENABLE_SPLASH';
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('OPEN_LINKS_IN_NEW_WINDOW', 1, 'true', 'Open article links in new browser window',2);
+
+update ttrss_version set schema_version = 6;
+
diff --git a/schema/versions/mysql/7.sql b/schema/versions/mysql/7.sql
new file mode 100644
index 000000000..bee135989
--- /dev/null
+++ b/schema/versions/mysql/7.sql
@@ -0,0 +1,19 @@
+alter table ttrss_feeds add column rtl_content bool;
+
+update ttrss_feeds set rtl_content = false;
+
+alter table ttrss_feeds change rtl_content rtl_content bool not null;
+alter table ttrss_feeds alter column rtl_content set default false;
+
+delete from ttrss_user_prefs where pref_name = 'DISPLAY_FEEDLIST_ACTIONS';
+delete from ttrss_prefs where pref_name = 'DISPLAY_FEEDLIST_ACTIONS';
+
+delete from ttrss_user_prefs where pref_name = 'ENABLE_PREFS_CATCHUP_UNCATCHUP';
+delete from ttrss_prefs where pref_name = 'ENABLE_PREFS_CATCHUP_UNCATCHUP';
+
+alter table ttrss_sessions drop column ip_address;
+
+alter table ttrss_filters drop column description;
+ 
+update ttrss_version set schema_version = 7;
+
diff --git a/schema/versions/mysql/8.sql b/schema/versions/mysql/8.sql
new file mode 100644
index 000000000..39100450b
--- /dev/null
+++ b/schema/versions/mysql/8.sql
@@ -0,0 +1,14 @@
+insert into ttrss_themes (theme_name, theme_path) values ('Old-skool', 'compat');
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id,help_text) values('ON_CATCHUP_SHOW_NEXT_FEED', 1, 'false', 'On catchup show next feed',2,
+	'When "Mark as read" button is clicked in toolbar, automatically open next feed with unread articles.');
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('FEEDS_SORT_BY_UNREAD', 1, 'false', 'Sort feeds by unread articles count',2);
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('EXTENDED_FEEDLIST', 1, 'false', 'Show additional information in feedlist',2);
+
+insert into ttrss_filter_actions (id,name,description) values (3, 'mark', 
+	'Set starred');
+
+update ttrss_version set schema_version = 8;
+
diff --git a/schema/versions/mysql/9.sql b/schema/versions/mysql/9.sql
new file mode 100644
index 000000000..546adc2d7
--- /dev/null
+++ b/schema/versions/mysql/9.sql
@@ -0,0 +1,29 @@
+alter table ttrss_feeds add column hidden bool;
+update ttrss_feeds set hidden = false;
+alter table ttrss_feeds change hidden hidden bool not null;
+alter table ttrss_feeds alter column hidden set default false;
+
+alter table ttrss_users add column email_digest bool;
+update ttrss_users set email_digest = false;
+alter table ttrss_users change email_digest email_digest bool not null;
+alter table ttrss_users alter column email_digest set default false;
+
+alter table ttrss_users add column last_digest_sent datetime;
+update ttrss_users set last_digest_sent = false;
+alter table ttrss_users alter column last_digest_sent set default null;
+
+alter table ttrss_filters add column enabled bool;
+update ttrss_filters set enabled = true;
+alter table ttrss_filters change enabled enabled bool not null;
+alter table ttrss_filters alter column enabled set default true;
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('MARK_UNREAD_ON_UPDATE', 1, 'false', 'Set articles as unread on update',3);
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('REVERSE_HEADLINES', 1, 'false', 'Reverse headline order (oldest first)',2);
+
+update ttrss_prefs SET section_id = 3 WHERE pref_name = 'ENABLE_SEARCH_TOOLBAR';
+update ttrss_prefs SET section_id = 3 WHERE pref_name = 'ENABLE_FEED_ICONS';
+update ttrss_prefs SET section_id = 3 WHERE pref_name = 'EXTENDED_FEEDLIST';
+
+update ttrss_version set schema_version = 9;
+
diff --git a/schema/versions/pgsql/10.sql b/schema/versions/pgsql/10.sql
new file mode 100644
index 000000000..764b4b763
--- /dev/null
+++ b/schema/versions/pgsql/10.sql
@@ -0,0 +1,12 @@
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id,help_text) values('DIGEST_ENABLE', 1, 'false', 'Enable e-mail digest',1,
+'This option enables sending daily digest of new (and unread) headlines on your configured e-mail address');
+
+alter table ttrss_feeds add column include_in_digest boolean;
+update ttrss_feeds set include_in_digest = true;
+alter table ttrss_feeds alter column include_in_digest set not null;
+alter table ttrss_feeds alter column include_in_digest set default true;
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('CONFIRM_FEED_CATCHUP', 1, 'true', 'Confirm marking feed as read',3);
+
+update ttrss_version set schema_version = 10;
+
diff --git a/schema/versions/pgsql/11.sql b/schema/versions/pgsql/11.sql
new file mode 100644
index 000000000..690b978eb
--- /dev/null
+++ b/schema/versions/pgsql/11.sql
@@ -0,0 +1,18 @@
+begin;
+
+delete FROM ttrss_user_prefs WHERE pref_name = 'DISPLAY_HEADER';
+delete FROM ttrss_user_prefs WHERE pref_name = 'DISPLAY_FOOTER';
+delete FROM ttrss_user_prefs WHERE pref_name = 'ENABLE_SEARCH_TOOLBAR';
+delete FROM ttrss_user_prefs WHERE pref_name = 'USE_COMPACT_STYLESHEET';
+
+delete FROM ttrss_prefs WHERE pref_name = 'DISPLAY_HEADER';
+delete FROM ttrss_prefs WHERE pref_name = 'DISPLAY_FOOTER';
+delete FROM ttrss_prefs WHERE pref_name = 'ENABLE_SEARCH_TOOLBAR';
+delete FROM ttrss_prefs WHERE pref_name = 'USE_COMPACT_STYLESHEET';
+
+insert into ttrss_themes (theme_name, theme_path) values ('Graycube', 'graycube');
+insert into ttrss_themes (theme_name, theme_path) values ('Default (Compact)', 'compact');
+
+update ttrss_version set schema_version = 11;
+
+commit;
diff --git a/schema/versions/pgsql/12.sql b/schema/versions/pgsql/12.sql
new file mode 100644
index 000000000..6de90f1ab
--- /dev/null
+++ b/schema/versions/pgsql/12.sql
@@ -0,0 +1,15 @@
+begin;
+
+alter table ttrss_filters add column action_param varchar(200);
+
+update ttrss_filters set action_param = '';
+
+alter table ttrss_filters alter column action_param set not null;
+alter table ttrss_filters alter column action_param set default '';
+
+insert into ttrss_filter_actions (id,name,description) values (4, 'tag', 
+		'Assign tags');
+
+update ttrss_version set schema_version = 12;
+
+commit;
diff --git a/schema/versions/pgsql/13.sql b/schema/versions/pgsql/13.sql
new file mode 100644
index 000000000..bf2a2b438
--- /dev/null
+++ b/schema/versions/pgsql/13.sql
@@ -0,0 +1,10 @@
+begin;
+
+alter table ttrss_filters add column inverse boolean;
+update ttrss_filters set inverse = false;
+alter table ttrss_filters alter column inverse set not null;
+alter table ttrss_filters alter column inverse set default false;
+
+update ttrss_version set schema_version = 13;
+
+commit;
diff --git a/schema/versions/pgsql/3.sql b/schema/versions/pgsql/3.sql
new file mode 100644
index 000000000..5b23f3366
--- /dev/null
+++ b/schema/versions/pgsql/3.sql
@@ -0,0 +1,43 @@
+begin;
+
+alter table ttrss_entries add column num_comments integer;
+
+update ttrss_entries set num_comments = 0;
+
+alter table ttrss_entries alter column num_comments set not null;
+alter table ttrss_entries alter column num_comments set default 0;
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id,help_text) values('COMBINED_DISPLAY_MODE', 1, 'false', 'Combined feed display',2,
+	'Display expanded list of feed articles, instead of separate displays for headlines and article content');
+
+alter table ttrss_feed_categories add column collapsed boolean;
+
+update ttrss_feed_categories set collapsed = false;
+
+alter table ttrss_feed_categories alter column collapsed set not null;
+alter table ttrss_feed_categories alter column collapsed set default false;
+
+alter table ttrss_feeds add column auth_login varchar(250);
+alter table ttrss_feeds add column auth_pass varchar(250);
+
+update ttrss_feeds set auth_login = '';
+update ttrss_feeds set auth_pass = '';
+
+alter table ttrss_feeds alter column auth_login set not null;
+alter table ttrss_feeds alter column auth_login set default '';
+
+alter table ttrss_feeds alter column auth_pass set not null;
+alter table ttrss_feeds alter column auth_pass set default '';
+
+alter table ttrss_users add column email varchar(250);
+
+update ttrss_users set email = '';
+
+alter table ttrss_users alter column email set not null;
+alter table ttrss_users alter column email set default '';
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('ENABLE_SEARCH_TOOLBAR', 1, 'false', 'Enable search toolbar',2);
+
+update ttrss_version set schema_version = 3;
+
+commit;
diff --git a/schema/versions/pgsql/4.sql b/schema/versions/pgsql/4.sql
new file mode 100644
index 000000000..1f926eaeb
--- /dev/null
+++ b/schema/versions/pgsql/4.sql
@@ -0,0 +1,17 @@
+begin;
+
+alter table ttrss_feeds add column parent_feed integer;
+alter table ttrss_feeds add foreign key (parent_feed) references ttrss_feeds(id) on delete set null;
+
+alter table ttrss_feeds add column private boolean;
+
+update ttrss_feeds set private = false;
+
+alter table ttrss_feeds alter column private set not null;
+alter table ttrss_feeds alter column private set default false;
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('HIDE_READ_FEEDS', 1, 'false', 'Hide feeds with no unread messages',2);
+
+update ttrss_version set schema_version = 4;
+
+commit;
diff --git a/schema/versions/pgsql/5.sql b/schema/versions/pgsql/5.sql
new file mode 100644
index 000000000..1292daa3c
--- /dev/null
+++ b/schema/versions/pgsql/5.sql
@@ -0,0 +1,10 @@
+begin;
+
+create table ttrss_scheduled_updates (id serial not null primary key,
+	owner_uid integer not null references ttrss_users(id) ON DELETE CASCADE,
+	feed_id integer default null references ttrss_feeds(id) ON DELETE CASCADE,
+	entered timestamp not null default NOW());
+
+update ttrss_version set schema_version = 5;
+
+commit;
diff --git a/schema/versions/pgsql/6.sql b/schema/versions/pgsql/6.sql
new file mode 100644
index 000000000..6c406495d
--- /dev/null
+++ b/schema/versions/pgsql/6.sql
@@ -0,0 +1,24 @@
+begin;
+
+alter table ttrss_entries add column author varchar(250);
+
+update ttrss_entries set author = '';
+
+alter table ttrss_entries alter column author set not null;
+alter table ttrss_entries alter column author set default '';
+
+create table ttrss_sessions (id varchar(250) unique not null primary key,
+	data text,
+	expire integer not null,
+	ip_address varchar(15) not null default '');
+
+create index ttrss_sessions_id_index on ttrss_sessions(id);
+create index ttrss_sessions_expire_index on ttrss_sessions(expire);
+
+delete from ttrss_prefs where pref_name = 'ENABLE_SPLASH';
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('OPEN_LINKS_IN_NEW_WINDOW', 1, 'true', 'Open article links in new browser window',2);
+
+update ttrss_version set schema_version = 6;
+
+commit;
diff --git a/schema/versions/pgsql/7.sql b/schema/versions/pgsql/7.sql
new file mode 100644
index 000000000..51437e4fa
--- /dev/null
+++ b/schema/versions/pgsql/7.sql
@@ -0,0 +1,22 @@
+begin;
+
+alter table ttrss_feeds add column rtl_content boolean;
+
+update ttrss_feeds set rtl_content = false;
+
+alter table ttrss_feeds alter column rtl_content set not null;
+alter table ttrss_feeds alter column rtl_content set default false;
+
+alter table ttrss_sessions drop column ip_address;
+
+delete from ttrss_user_prefs where pref_name = 'DISPLAY_FEEDLIST_ACTIONS';
+delete from ttrss_prefs where pref_name = 'DISPLAY_FEEDLIST_ACTIONS';
+
+delete from ttrss_user_prefs where pref_name = 'ENABLE_PREFS_CATCHUP_UNCATCHUP';
+delete from ttrss_prefs where pref_name = 'ENABLE_PREFS_CATCHUP_UNCATCHUP';
+
+alter table ttrss_filters drop column description;
+
+update ttrss_version set schema_version = 7;
+
+commit;
diff --git a/schema/versions/pgsql/8.sql b/schema/versions/pgsql/8.sql
new file mode 100644
index 000000000..ab7a7df33
--- /dev/null
+++ b/schema/versions/pgsql/8.sql
@@ -0,0 +1,17 @@
+begin;
+
+insert into ttrss_themes (theme_name, theme_path) values ('Old-skool', 'compat');
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id,help_text) values('ON_CATCHUP_SHOW_NEXT_FEED', 1, 'false', 'On catchup show next feed',2,
+	'When "Mark as read" button is clicked in toolbar, automatically open next feed with unread articles.');
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('FEEDS_SORT_BY_UNREAD', 1, 'false', 'Sort feeds by unread articles count',2);
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('EXTENDED_FEEDLIST', 1, 'false', 'Show additional information in feedlist',2);
+
+insert into ttrss_filter_actions (id,name,description) values (3, 'mark', 
+	'Set starred');
+
+update ttrss_version set schema_version = 8;
+
+commit;
diff --git a/schema/versions/pgsql/9.sql b/schema/versions/pgsql/9.sql
new file mode 100644
index 000000000..9624403aa
--- /dev/null
+++ b/schema/versions/pgsql/9.sql
@@ -0,0 +1,33 @@
+begin;
+
+alter table ttrss_feeds add column hidden boolean;
+update ttrss_feeds set hidden = false;
+alter table ttrss_feeds alter column hidden set not null;
+alter table ttrss_feeds alter column hidden set default false;
+
+alter table ttrss_users add column email_digest boolean;
+update ttrss_users set email_digest = false;
+alter table ttrss_users alter column email_digest set not null;
+alter table ttrss_users alter column email_digest set default false;
+
+alter table ttrss_users add column last_digest_sent timestamp;
+update ttrss_users set last_digest_sent = NULL;
+alter table ttrss_users alter column last_digest_sent set default NULL;
+
+alter table ttrss_filters add column enabled boolean;
+update ttrss_filters set enabled = true;
+alter table ttrss_filters alter column enabled set not null;
+alter table ttrss_filters alter column enabled set default true;
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('MARK_UNREAD_ON_UPDATE', 1, 'false', 'Set articles as unread on update',3);
+
+insert into ttrss_prefs (pref_name,type_id,def_value,short_desc,section_id) values('REVERSE_HEADLINES', 1, 'false', 'Reverse headline order (oldest first)',2);
+
+update ttrss_prefs SET section_id = 3 WHERE pref_name = 'ENABLE_SEARCH_TOOLBAR';
+update ttrss_prefs SET section_id = 3 WHERE pref_name = 'ENABLE_FEED_ICONS';
+update ttrss_prefs SET section_id = 3 WHERE pref_name = 'EXTENDED_FEEDLIST';
+
+update ttrss_version set schema_version = 9;
+
+commit;
+
diff --git a/update.css b/update.css
new file mode 100644
index 000000000..d3c2890fc
--- /dev/null
+++ b/update.css
@@ -0,0 +1,7 @@
+p.warning {
+	color : red;
+}
+
+p.query {
+	color : green;
+}
diff --git a/update.php b/update.php
new file mode 100644
index 000000000..964626d7f
--- /dev/null
+++ b/update.php
@@ -0,0 +1,142 @@
+<?php
+	require_once "sessions.php";
+
+	require_once "sanity_check.php";
+	require_once "functions.php";
+	require_once "config.php";
+	require_once "db.php";
+
+	$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);	
+
+	if (DB_TYPE == "pgsql") {
+		pg_query($link, "set client_encoding = 'utf-8'");
+		pg_set_client_encoding("UNICODE");
+	}
+
+	login_sequence($link);
+
+	$owner_uid = $_SESSION["uid"];
+
+	if ($_SESSION["access_level"] < 10) { 
+		header("Location: login.php"); die;
+	}
+
+	define('SCHEMA_VERSION', 13);
+
+?>
+
+<html>
+<head>
+	<title>Database Updater</title>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+	<link rel="stylesheet" type="text/css" href="update.css">
+</head>
+
+<body>
+
+<h1>Database Updater</h1>
+
+<?php
+	function getline($fp, $delim) {
+	   $result = "";
+	   while(!feof($fp)) {
+			$tmp = fgetc($fp);
+
+			if($tmp == $delim) {
+				return $result;
+			}
+			$result .= $tmp;
+		}
+		return $result;
+	}
+
+	$op = $_REQUEST["op"];
+	
+	$result = db_query($link, "SELECT schema_version FROM ttrss_version");
+	$version = db_fetch_result($result, 0, "schema_version");
+
+	$update_files = glob("schema/versions/".DB_TYPE."/*sql");
+	$update_versions = array();
+
+	foreach ($update_files as $f) {
+		$m = array();
+		preg_match_all("/schema\/versions\/".DB_TYPE."\/(\d*)\.sql/", $f, $m,
+			PREG_PATTERN_ORDER);
+
+		if ($m[1][0]) {
+			$update_versions[$m[1][0]] = $f;
+		}
+	}
+
+	ksort($update_versions, SORT_NUMERIC);
+
+	$latest_version = max(array_keys($update_versions));
+
+	if ($version == $latest_version) {
+		print "Database schema is up to date (version $version).";
+		return;
+	}
+
+	if (!$op) {
+		print "<p class='warning'><b>Warning:</b> Please backup your database before proceeding.</p>";
+
+		print "<p>Your database schema version is $version. Latest version is ".
+			"$latest_version.</p>";
+
+		print "<p>Available incremental updates:";
+
+		foreach (array_keys($update_versions) as $v) {
+			if ($v > $version) {
+				print " <a href='$update_versions[$v]'>$v</a>";
+			}
+		}
+
+		print "</p>";
+		print "<a href='update.php?op=do'>Click here to perform updates.</a>";
+
+	} else if ($op == "do") {
+
+		print "<p>Performing updates (version: $version)...</p>";
+
+		$num_updates = 0;
+
+		foreach (array_keys($update_versions) as $v) {
+			if ($v == $version + 1) {
+				print "<p>Updating to version $v...</p>";
+				$fp = fopen($update_versions[$v], "r");
+				if ($fp) {
+					while (!feof($fp)) {
+						$query = trim(getline($fp, ";"));
+						if ($query != "") {
+							print "<p class='query'><b>QUERY:</b> $query</p>";
+							db_query($link, $query);
+						}
+					}
+				}
+				fclose($fp);
+
+				print "<p>Checking version... ";
+
+				$result = db_query($link, "SELECT schema_version FROM ttrss_version");
+				$version = db_fetch_result($result, 0, "schema_version");
+
+				if ($version == $v) {
+					print "OK!";
+				} else {
+					print "<b>ERROR!</b>";
+					return;
+				}
+
+				$num_updates++;
+			}
+		}
+
+		print "<p>Finished. Performed $num_updates updates up to schema
+			version $version.</p>";
+	}
+?>
+
+
+</body>
+</html>
+