WHMCS have released a revision for 5.3 version yesterday.
- A lot of new functions have been added to “Domain Renewal Notices”. These functions have been added to cater for requirements set by ICANN.
- A new support settings “Prevent Email Reopening”. This was a long awaited feature for people who use support desk of WHMCS.
- There are templates changes too.
More about the release can be found on http://docs.whmcs.com/Version_5.3.12_Release_Notes