Prepare release 3.3.3

README.md

@@ -154,11 +154,9 @@ FAQ
 
 * If you have suhosin installed and face an issue with CSRF, please make sure you read [issue #1492](https://github.com/opensourcepos/opensourcepos/issues/1492).
 
-* If you see the item edit dialog box empty starting with version 3.3.0, please disable `only_full_group_by` option from MySQL/MariaDB. See [issue #2538](https://github.com/opensourcepos/opensourcepos/issues/2538).
-
 * PHP 8.0 is not currently supported, see [issue #3051](https://github.com/opensourcepos/opensourcepos/issues/3051).
 
-* PHP 5.6 is no longer support as deprecated and not safe to use from security perspective.
+* PHP 5.5 and 5.6 are no longer supported due to the fact that they have been deprecated and not safe to use from security point of view.
 
 Credits
 -------

WHATS_NEW.txt

@@ -1,3 +1,13 @@
+Version 3.3.3
+-------------
++ PHP 7.4 support
++ Set PHP 7.2 to be the minimum level due to older version deprecations
++ Added email CC and BCC (see config/email.php)
++ Cash rounding to nearest 5 cents
++ Updated composer packages and js plugins
++ Improved security (CSRF protection)
++ Various small improvements and bug fixes
+
 Version 3.3.2
 -------------
 + Fixed `only_full_group_by` issue with MySQL/MariaDB