Although MetaQuotes discontinued support for MT4 client terminal versions below 1065 in 2017 and stopped issuing MT4 licenses to new clients in 2018, the MT4 platform is still available for download via the MetaQuotes Software site (here is the link to the MT4 download landing page). Though MT5 is more feature-rich than its predecessor and has now surpassed MT4 in terms of the number of companies using the platform, no public statements have been made by MetaQuotes indicating that MT4 will be officially phased out.