diff --git a/CHANGES b/CHANGES
index 9836631..c99b107 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,19 @@
+2011-07-16 andreev.artem
+
+        2.4 beta contains such changes:
+        * compatible only with Moodle 2.0
+        * fully internals rewritten (OOP, renderers, etc)
+        * support all 2.3 features: session types (common and group),
+        interface improvements (sessions filtering by different criteria’s),
+        copy attendance data from same-day sessions,
+        fast session switching for same-day sessions,
+        more than one attendance in the same course,
+        list and grid display modes for take page
+        * enhancement: taken into account information
+        about students enrolment (start/end date) on different pages
+        * enhancement: HTML-editor for session description
+        with ability to add links, files, formatting, etc
+
 2011-01-18  lrlopez
 
         * attendances.php: styles.php:
diff --git a/README.txt b/README.txt
index 7c61bd1..c55c460 100644
--- a/README.txt
+++ b/README.txt
@@ -5,11 +5,15 @@
 --------
 ABOUT
 --------
-This is version 2.2.x of the "Attendance" module (attforblock). It is still IN DEVELOPMENT
-and should not be considered a stable release unless otherwise noted. 
-It has been tested on Moodle 1.9+, MySQL and PHP 5.2+.
+This is version 2.4.x of the "Attendance" module (attforblock).
+It is still IN DEVELOPMENT and
+should not be considered a stable release unless otherwise noted. 
 
-The "Attendance" module is developed by Dmitry Pupinin, Novosibirsk, Russia.
+2.4.x release is compatible only with Moodle 2.0.
+
+The "Attendance" module is developed by
+    Dmitry Pupinin, Novosibirsk, Russia,
+    Artem Andreev, Taganrog, Russia.
 
 This block may be distributed under the terms of the General Public License
 (see http://www.gnu.org/licenses/gpl.txt for details)
@@ -23,4 +27,6 @@ Only the instructor can update the attendance data. However, a student gets to s
 ----------------
 INSTALLATION
 ----------------
-The attendance follows standard installation procedures. Place the "attendance" directory in your blocks directory, "attforblock" directory in your mod directory. Please delete old language files from your moodledata/lang/en directory if you are upgrading the module. Then visit the Admin page in Moodle to activate it.
+The attendance follows standard installation procedures.
+Place the "attforblock" directory in your mod directory.
+Then visit the Admin page in Moodle to activate it.
diff --git a/RELEASES.txt b/RELEASES.txt
index c9192c8..efa4150 100644
--- a/RELEASES.txt
+++ b/RELEASES.txt
@@ -46,4 +46,24 @@ RELEASE NOTES
 2.1.0 - 28 feb 2009 - Dmitry Pupinin [moodle.org member]
 + hidden sessions displayed
 * format of backup changed
-* bug fixes
\ No newline at end of file
+* bug fixes
+
+2.2.0 beta - 25 nov 2010 - Artem Andreev [moodle.org member]
++ Implemented ability to add two types of sessions: common and group.
++ Some interface improvements (sessions filtering by different criteries)
+for manage.php, report.php, view.php.
++ Don't display grade and percent when module grade option is "No grade".
+
+2.3.0 beta - 18 jan 2011 - Luis Ramón López [moodle.org member]
++ copy attendance data from same-day sessions,
++ fast session switching for same-day sessions,
++ more than one attendance in the same course,
++ list and grid display modes for take page
+* bug fixes
+
+2.4.0 beta - 16 jul 201 - Artem Andreev [moodle.org member]
+* compatible only with Moodle 2.0
+* fully internals rewritten (OOP, renderers, etc)
+* support all 2.3 features
++ taken into account information about students enrolment (start/end date) on different pages
++ HTML-editor for session description with ability to add links, files, formatting, etc
diff --git a/version.php b/version.php
index 8da40a6..2c05fa8 100644
--- a/version.php
+++ b/version.php
@@ -5,7 +5,7 @@
 ///  This fragment is called by moodle_needs_upgrading() and /admin/index.php
 /////////////////////////////////////////////////////////////////////////////////
 
-$module->version  = 2011061800;  // The current module version (Date: YYYYMMDDXX)
+$module->version  = 2011071600;  // The current module version (Date: YYYYMMDDXX)
 $module->release = '2.4.0';
 $module->cron     = 0;           // Period for cron to check this module (secs)
 ?>