MT4 and MT5

[Ara]

Are there any known limitations or differences between MT4 and MT5 that could affect the functionality of custom indicators when switching platforms?

 

[Enivid]

Yes, custom MT4 indicators won't work in MT5. That's the limitation.

 

[Ara]

Yes, custom MT4 indicators won't work in MT5. That's the limitation.

Right. I checked. Custom MT4 indicators are not directly compatible with MT5.

 

[Valetax]

Are there any known limitations or differences between MT4 and MT5 that could affect the functionality of custom indicators when switching platforms?

Yes, there are differences. MT4 uses MQL4, and MT5 uses MQL5—they aren’t directly compatible, so custom indicators often need to be rewritten. MT5 also has more timeframes, better data access, and faster processing, which can affect how indicators behave. If switching, some adjustments will likely be needed.