I am new in algo trading, I read alot about the differences between MQL4 and MQL5? tell now I didn't take the deciton to choose.
Which one you advice, you choose and why?
(in terms of professionality, stable, wide use, market, etc)
MQL5 because MQL4 is getting old and will be soon no longer supported.
MT4 is already no longer available via the official website but only via brokers. Make yourself a favor, make the switch now :)
I would choose MQl5 over MQl4 anytime. MQL4 is getting outdated. Metaquotes keeps adding new functionality and pushing updates for MT5.
MT4 vs MT5
MQL5 vs QLUA - Why trading operations in MQL5 are up to 28 times faster? - the article
The Video from MQ: demonstration of the calculations on the GPU in MQL5 code and the graphics capabilities of the terminal
MQL5 speed test (compare with MQL4 and C++)https://www.mql5.com/ru/forum/217992#comment_5943518 (in Russian)