📌 Pinned
Major Update: MetaTrader 5 Build 3900 Released - What's New
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news-updates
MetaQuotes just released MT5 build 3900 with some significant changes:
Key Updates:
🔧 Performance Improvements
- 30% faster backtesting on multi-core processors
- Optimized memory usage for EAs with many indicators
- Faster chart rendering
📊 New Features
- Enhanced Strategy Tester with genetic optimization
- New built-in indicators (21 total additions)
- Improved MQL5 debugger
- Cloud terminal synchronization
⚠️ Breaking Changes
- OrderSend() now requires type_filling parameter (see my troubleshooting thread)
- Some deprecated functions removed
- Changed behavior for pending order modification
🐛 Bug Fixes
- Fixed memory leak in custom indicators
- Corrected timezone issues in Strategy Tester
- Fixed crash when loading large history files
Recommendation: Test your EAs in demo before updating live accounts. Some older EAs may need code updates.
Download: Official MetaQuotes website
Anyone updated yet? Any issues?