An update (v 5.1) has been released.
This version fixes the following bugs, among others:
- Overflow error with CAPTCHA image folder during DDoS attacks;
- Site cron logic has been changed. Error event logging has been added;
- Fixed an error in uploaded file names;
- Fixed an error with transparency in uploaded images;
- Race condition protection has also been added to payment system status files;
- Minor bugs have been fixed.