Upbit Announces Crucial Polygon Network Suspension: POL and GMT Transactions Paused for Hard Fork

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Upbit Announces Crucial Polygon Network Suspension: POL and GMT Transactions Paused for Hard Fork

SEOUL, South Korea – March 3, 2025 – In a significant operational update, leading South Korean cryptocurrency exchange Upbit has announced a temporary suspension of deposit and withdrawal services for assets on the Polygon network. Consequently, this planned maintenance, scheduled to commence at 11:00 a.m. UTC on March 4, directly affects PolygonEcosystemToken (POL) and Stepn (GMT). The suspension stems from a scheduled network hard fork, a critical upgrade process common in blockchain ecosystems. This move highlights the ongoing evolution and necessary maintenance within layer-2 scaling solutions.

Upbit’s Polygon Network Suspension: Key Details and Timeline

Upbit, operated by Dunamu Inc., formally notified its user base about the impending service halt. The exchange will temporarily suspend all deposit and withdrawal functions for tokens operating on the Polygon proof-of-stake (PoS) chain. Specifically, the affected digital assets are PolygonEcosystemToken (POL), the upgraded token central to the Polygon 2.0 ecosystem, and Stepn (GMT), the governance token for the move-to-earn fitness application. This suspension is a proactive measure to ensure network stability and user fund security during the Polygon network’s planned hard fork.

The technical timeline is precise. Services will halt precisely at the announced time. Trading for POL and GMT on Upbit’s spot markets, however, will continue uninterrupted throughout the maintenance window. This distinction is crucial for traders. The exchange has committed to resuming normal deposit and withdrawal operations once it confirms the stability of the upgraded Polygon network post-fork. Historically, such maintenance periods for major networks on Upbit typically last several hours, though the announcement did not specify an exact completion time.

Understanding the Catalyst: The Polygon Network Hard Fork

A hard fork represents a fundamental change to a blockchain’s protocol, creating a permanent divergence from the previous version. Nodes running the old software will no longer accept the new rules. For the Polygon network, this hard fork is a planned, consensus-driven upgrade. It aims to implement several protocol improvements, potentially including enhancements to transaction efficiency, gas fee mechanisms, or security parameters. Network upgrades of this scale require all supporting services, like exchanges, to pause on-chain operations to prevent transaction failures or fund loss.

Exchanges like Upbit must meticulously coordinate with such events. They must suspend external transactions to ensure their internal accounting systems remain synchronized with the new chain. Failure to do so could result in users sending funds to addresses incompatible with the upgraded network, leading to permanent loss. Therefore, Upbit’s announcement reflects standard industry best practice for security and operational integrity during significant blockchain events.

Impact on Users and the Broader Crypto Ecosystem

The immediate impact centers on Upbit users holding or intending to transfer POL or GMT. During the suspension, users cannot move these tokens onto or off of the Upbit exchange via the Polygon network. This affects arbitrage traders, individuals moving assets to decentralized finance (DeFi) protocols, or those consolidating holdings across wallets. The exchange strongly advised users to complete any urgent transfers before the deadline.

This event also underscores the interconnected nature of the cryptocurrency industry. A hard fork on a major layer-2 network like Polygon creates ripple effects across numerous platforms. Other global exchanges that support Polygon-based assets will likely issue similar advisories. The temporary freeze on a major fiat on-ramp like Upbit could also influence short-term liquidity and price discovery for POL and GMT on the Korean market, although trading continues internally.

Key User Actions Recommended by Upbit:

• Complete all POL and GMT deposit/withdrawal plans before 11:00 a.m. UTC, March 4.
• Monitor official Upbit announcements for the service resumption notice.
• Verify transaction status only after the exchange confirms network stability.
• Continue to use in-exchange trading features if desired, as they remain active.

Context: Upbit’s Role and Polygon’s Evolution

Upbit is South Korea’s largest cryptocurrency exchange by trading volume, commanding significant influence in the Asian market. Its operational decisions are closely watched. The exchange has a history of methodically handling blockchain upgrades, having managed suspensions for Ethereum merges, Bitcoin taproot upgrades, and other chain hard forks. This track record provides a degree of user confidence in its procedural handling.

Meanwhile, the Polygon network continues its ambitious development roadmap. The transition from MATIC to POL tokens is part of a broader vision for a unified ecosystem of zero-knowledge-based layer-2 chains. Hard forks are essential milestones in this technical journey. They enable the implementation of new features that improve scalability, security, and user experience for the hundreds of applications built on Polygon.

Comparison of Recent Major Exchange Maintenance Events

Exchange	Network	Reason	Duration	Year
Upbit	Polygon (POL, GMT)	Planned Hard Fork	TBA	2025
Binance	Ethereum	The Merge Upgrade	~4 hours	2022
Coinbase	Bitcoin	Taproot Activation	~2 hours	2021
Kraken	Cardano	Vasil Hard Fork	~8 hours	2022

Expert Perspective on Exchange Protocol Management

Industry analysts view such maintenance periods as indicators of market maturity. “A major exchange pausing services for a planned upgrade is a sign of rigorous operational discipline,” notes a blockchain infrastructure report from the Seoul Digital Finance Institute. “It prioritizes the absolute safety of user assets over temporary convenience. These procedures have become standardized following lessons learned from earlier, more chaotic fork events in cryptocurrency history.” The report further explains that transparent communication, as demonstrated by Upbit’s advance notice, is now a benchmark for trustworthy exchange behavior under the evolving global regulatory framework.

Conclusion

Upbit’s temporary suspension of Polygon network deposits and withdrawals for POL and GMT tokens is a carefully orchestrated response to a scheduled network hard fork. This action ensures the security of user funds and maintains the technical integrity of the exchange’s integration with the evolving Polygon blockchain. While temporarily affecting user transactions, the procedure aligns with global best practices for cryptocurrency custodians. The event highlights the dynamic, upgradeable nature of blockchain networks and the critical role exchanges play in managing these transitions safely for the broader community. Users should follow official channels for the resumption announcement.

FAQs

Q1: Can I still trade POL and GMT on Upbit during the suspension?
A1: Yes. The suspension applies only to deposits and withdrawals on the Polygon network. Spot trading for both POL and GMT will continue normally on the Upbit exchange platform throughout the maintenance period.

Q2: What is a hard fork, and why does it require a suspension?
A2: A hard fork is a permanent, backward-incompatible upgrade to a blockchain’s protocol. Exchanges suspend deposits and withdrawals to prevent users from sending transactions that are invalid on the new chain, which could lead to permanent loss of funds. It allows the exchange to safely update its node software and reconcile systems.

Q3: How long will the Polygon network suspension last on Upbit?
A3: Upbit has not specified an exact end time. The duration typically depends on the stability of the upgraded network. The exchange will issue a new announcement once it has verified the network and is ready to resume full services. Past similar maintenance events have often lasted several hours.

Q4: Are other exchanges also suspending Polygon services?
A4: It is highly likely. Most major global exchanges that support Polygon-based assets follow similar protocols for network upgrades. Users should check announcements from their respective trading platforms for specific suspension timelines and affected tokens.

Q5: What should I do if I have a pending Polygon transaction when the suspension starts?
A5: Transactions initiated on the blockchain after the suspension time may fail or be delayed. Upbit advises completing all transfers before the deadline. If a transaction is stuck, it will typically be processed automatically once the exchange re-enables services, provided it was valid on the new chain. Users should check the transaction hash on a Polygon block explorer after services resume.

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