i also have some mq4 files and then i found the mq4 to mq5 converter instructions on the internet. There is almost no automatic software for converting, only manual, but I couldn't do it myself because I'm not good at coder.
I also hope that one day the mt4 software maker will support conversion to mt5 for free, but why can't they do that when mt5 has grown?
I also hope that one day the mt4 software maker will support conversion to mt5 for free, but why can't they do that when mt5 has grown?