MetaQuotes Software Corp, the developer of MetaTrader platforms, ceased licensing MT4 to new brokers — meaning all new brokers entering the market must offer MT5 platform exclusively, while existing MT4 brokers face active encouragement (and increasing operational pressure) to migrate clients to MT5. The licensing change is structural — not a sudden announcement but a multi-year deliberate sunsetting of MT4 platform that began with halt of new MT4 broker licenses around 2022, accelerating through 2024-2026 with diminished MT4 platform updates, reduced support, and gradual ecosystem migration. For brokers, the transition creates strategic decision: aggressive client migration to MT5 (capturing platform feature advantages but risking customer disruption) vs slow drift toward forced migration (lower disruption but increasing technical debt). For traders, the migration matters because MT4 platform support diminishes — fewer EAs/indicators receive MT4 updates, broker MT4 server reliability less prioritized, MT4 client features stagnant. The transition is not "deadline" in single-date sense but rather sustained pressure compounding through 2026-2028 toward MT4 phase-out. This piece walks through MT4 to MT5 migration framework specifically.
Timeline of MetaQuotes MT4 Sunset
| Year | Event |
|---|---|
| 2010 | MT5 initial release alongside MT4 |
| 2014-2018 | MT5 feature parity development; brokers prefer MT4 due to client familiarity |
| 2019-2021 | MT5 reaches feature parity + multi-asset advantages emerge |
| 2022 | MetaQuotes ceases issuing new MT4 broker licenses |
| 2023 | Apple removes MT4/MT5 from App Store (later restored after compliance work) |
| 2024 | Major brokers actively encouraging MT4 → MT5 migration |
| 2025 | MT5 firmly established as new broker default |
| 2026 (current) | MT4 platform support diminished; client migration accelerating |
| 2027-2028 (projected) | MT4 broker support significantly reduced |
| 2029-2030 (projected) | MT4 effectively legacy platform |
The trajectory is clear and multi-year — not surprise sunset but gradual obsolescence.
Why MetaQuotes Made the Decision
MetaQuotes rationale for MT4 sunset:
Reason 1 — Multi-asset support: MT5 supports forex + stocks + futures + crypto. MT4 limited to forex CFDs primarily. Modern broker offerings require multi-asset.
Reason 2 — Architectural advantages: MT5 architecture more modern, scalable, maintainable. MT4 architecture aging.
Reason 3 — Programming language modernization: MQL5 object-oriented vs MQL4 procedural. MQL5 more capable.
Reason 4 — Compliance requirements: Modern regulatory frameworks easier to support in MT5.
Reason 5 — Resource concentration: Maintaining two platforms split MetaQuotes engineering. Single-platform focus more efficient.
Reason 6 — Client expectations evolving: Traders demand modern UX, mobile parity, ML integration — easier in MT5.
The decision is rational from MetaQuotes business perspective and increasingly from broker business perspective.
Implications for Brokers
For brokers operating MT4 platforms in 2026:
Implication 1 — MT4 client migration project: Plan migration over 12-24 month horizon. Communicate clearly with client base.
Implication 2 — Custom indicator/EA migration: Offer migration tools/services for client custom code.
Implication 3 — Marketing reposition: Lead with MT5 in marketing materials. MT4 background option only.
Implication 4 — Server consolidation: Eventually retire MT4 servers, consolidating on MT5 infrastructure. Cost reduction over time.
Implication 5 — Liquidity provider integration: Some LPs still optimized for MT4. Migration requires LP coordination.
Implication 6 — Customer support training: Support staff knowledgeable in MT5 features.
For new broker entrants, MT5-only is forced default. For incumbent MT4 brokers, transition is strategic.
Implications for Traders
For traders currently using MT4:
Implication 1 — Platform support diminishing: MT4 client receives few/no updates. Bugs unfixed. Compatibility issues with new OS versions emerge.
Implication 2 — EA/indicator availability shrinking: New EAs/indicators predominantly MQL5. MT4 marketplace declining.
Implication 3 — Multi-asset limitation: Traders wanting stocks/futures/crypto in same platform must use MT5.
Implication 4 — Migration learning curve: MQL4 vs MQL5 differences require relearning. Custom EAs may need porting.
Implication 5 — Broker relationship changes: If broker discontinues MT4, must accept MT5 or change broker.
Implication 6 — New capabilities accessible: MT5 unlocks ONNX ML support, multi-asset, modern UI, better mobile.
For traders willing to invest in MT5 migration, capability uplift available. For resistant traders, increasing friction.
Migration Strategy Recommendations
For traders planning MT4 to MT5 migration:
Phase 1 — Familiarization (1-2 weeks):
- Open MT5 demo account
- Explore interface differences
- Practice basic order entry
- Familiarize with MT5 navigator/markets
Phase 2 — Indicator/EA inventory (1 week):
- Catalog MT4 indicators/EAs currently used
- Identify MT5 equivalents
- Decide migration approach (port vs replace)
Phase 3 — Custom code porting (2-12 weeks depending on volume):
- Port custom EAs from MQL4 to MQL5
- Test thoroughly in Strategy Tester
- Forward test on demo
Phase 4 — Live migration (1-4 weeks):
- Open MT5 live account
- Migrate trades gradually
- Maintain MT4 access during transition for safety
Phase 5 — MT4 sunset (ongoing):
- Monitor broker MT4 sunset announcements
- Complete migration before forced cutoff
Total timeline: 1-6 months for typical retail trader. Faster for simple usage, longer for complex algo trading.
Resource Availability
Resources supporting migration:
- MetaQuotes documentation: MQL5.com extensive documentation
- Community forums: MQL5.com forum, ForexFactory MT5 section
- Migration services: Commercial services porting EAs ($200-2000 per EA)
- Broker support: Most brokers offer MT5 onboarding assistance
- YouTube tutorials: Extensive video tutorials on MT5 features
- Books: MQL5 programming books available
- Online courses: Various paid and free courses
For most traders, self-directed migration feasible with available resources.
Comparison with Other Platform Transitions
Historical platform migrations for context:
| Transition | Timeline | Outcome |
|---|---|---|
| ProRealTime → newer versions | Multi-year, gradual | Smooth migration |
| Bloomberg Terminal versions | Continuous evolution | Backward compatible |
| Sierra Chart updates | Continuous | Backward compatible |
| MT4 → MT5 (current) | 2010-ongoing (~15+ years) | Gradual, accelerating |
| Internet Explorer → Edge | ~5 years | Microsoft-forced |
| Adobe Flash → HTML5 | ~10 years | Industry-forced |
MT4 → MT5 transition is gradual industry transition similar to broader software lifecycle patterns.
What This Tells Us About MT4-to-MT5 Industry Direction 2026
First, MT4 sunset is structural and irreversible. Resistance only delays personal migration.
Second, Migration investment justifies long-term capability upside. MT5 platform modern and active.
Third, Brokers managing migration timing strategically; traders should align with broker direction.
What This Desk Tracks Through Q3 2026
Datapoint 1: Major broker MT4 sunset announcements. Datapoint 2: MT5 client adoption rates across major brokers. Datapoint 3: MT4 client population stability or decline.
Honest Limits
Migration timeline reflects industry trajectory based on MetaQuotes decisions. Specific broker timelines vary substantially. Custom code migration complexity varies. Resource availability evolving. This text does not constitute trading or business advice.