MQL5 (MetaQuotes Language 5)
MetaQuotes Language 5 (MQL5) - The latest generation of software environment for creating trading experts, indicators and scripts for working in the markets, developed by MetaQuotes Software Corp.
The emergence of a new language is associated with the creation and release of the trade MetaTrader 5 platformsThe new version of the MetaTrader 4 terminal replaces the previous one.
So is the programming language MetaQuotes Language 4 (MQL4), MQL5 is focused on the automation of the trading process for the modern trader.