is there any real reason left to stay on mt4 in 2026
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genuine question, not trying to start a war. i learned on mt4 and most of my indicators and one EA are mql4. but every broker is pushing mt5 now and some are dropping mt4 support entirely.
for those who made the switch: what did you actually gain, and what did you lose? is it worth porting my stuff or should i just ride mt4 until its dead?
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switched two years ago and wont go back. real gains: proper economic calendar built in, more timeframes, the strategy tester is multi-threaded and actually uses all your cores, and depth of market on brokers that provide it. losses: your mql4 stuff doesnt port automatically, custom indicators need rewriting in mql5 which is a different enough language to be annoying.
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the 'gains' are mostly stuff retail traders never use. depth of market on a 50 dollar account is cosplay. if your mt4 setup makes money just keep it, switching for feature checkboxes is procrastination dressed up as productivity.
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the practical answer is migration timing. dont switch mid-strategy. wait until you have a quiet period, port one indicator at a time, run both terminals in parallel for a few weeks and confirm the mt5 version gives identical signals before you trust it live.
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mql5 is object-oriented where mql4 was more procedural. for simple input tweaks youll be fine. for anything with custom indicator buffers or order management the structure changed a lot, orders use a position/deal model now instead of the old order pool. budget real time if your EA does anything clever.
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counterpoint on backtesting: mt5 multi-core is faster but the tick model can give you falsely smooth results if you use the wrong mode. on 'every tick based on real ticks' it is genuinely better, on the open-price mode it lies to you just like mt4 did. speed without the right tick data is just faster wrong answers.
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for the original question: if your broker is actually deprecating mt4, the decision is made for you, migrate now while you have time rather than in a panic when they pull the plug. if mt4 is still supported and your setup is profitable, theres no urgency. let the strategy lead the decision, not the platform marketing.
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do indicators bought from third parties usually come in both versions or do you have to repurchase for mt5?
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this thread convinced me to finally start porting my indicators this weekend. been putting it off for a year out of pure laziness. wish me luck
my optimization runs went from overnight to like 20 minutes. if you optimize parameters at all that one feature pays for the whole migration headache.Hello! It looks like you're interested in this conversation, but you don't have an account yet.
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