SunSwap V4 Launches with Six Key Innovations, Redefining AMM on TRON

On March 2, Sun.io, the core liquidity infrastructure of the TRON ecosystem, officially announced the launch of its flagship DEX platform, SunSwap V4. The newly unveiled SunSwap V4 significantly reduces trading costs and breakthroughly expands the protocol’s scalability—turning complex DeFi innovation combinations that were previously only conceptual into tangible reality within the TRON ecosystem.

This SunSwap V4 upgrade is not a routine product iteration, but a systemic reconstruction of the underlying logic of AMM (Automated Market Maker). By innovatively introducing technologies such as the singleton pattern (unified pool management), Hooks (customizable trading rule plugins), and flash accounting (net settlement), this version fundamentally resolves the performance bottlenecks of traditional AMMs and achieves a comprehensive, bottom-up overhaul of the traditional AMM architecture.

From a practical standpoint, the SunSwap V4 upgrade achieves a dual breakthrough in extreme optimization of trading costs and comprehensive enhancement of protocol extensibility: on the trading cost side, leveraging foundational architectural innovations, the liquidity pool execution paths are maximally optimized, significantly reducing on-chain transaction energy consumption and costs, pushing TRON network’s inherent low-cost advantage to new heights; on the protocol extensibility side, it opens up customizable development tools, enabling developers to build highly customized liquidity pools and diverse DeFi products, laying a solid infrastructure foundation for innovation across all ecosystem scenarios.

With the official launch of SunSwap V4, the TRON DeFi ecosystem has bid farewell to the era of static pools and entered a new era of greater flexibility, higher efficiency, and fully programmable capabilities.

SunSwap V4, newly launched, fully inherits the core advantages of V1, V2, and V3, and introduces six innovative features: native TRX passthrough, singleton mode (unified pool management), lightning accounting (unified net settlement), Hooks (customizable transaction rule plugins), custom accounting (tailored settlement strategies), and Subscribers (real-time position change notifications). These modules work in deep synergy, complementing each other to achieve极致 optimization of trading costs and exponential improvement in protocol scalability.

This not only delivers users an exceptionally smooth and low-cost on-chain trading experience but also grants developers unprecedented customization capabilities. Built upon a comprehensive overhaul of these underlying capabilities, SunSwap V4 significantly reduces trading energy consumption while breakthroughly expanding the protocol’s scalability, making complex DeFi LEGO combinations a reality within the TRON ecosystem.

Looking back on SunSwap’s evolution, V1 and V2 served as foundational versions for the early ecosystem, leveraging the Constant Product Market Maker (CPMM) model to establish a basic TRC-20 token exchange system. With their simplicity, ease of use, and efficient swapping capabilities, they laid the groundwork for early liquidity in the TRON DeFi ecosystem. V3, however, marked a breakthrough advancement by innovatively introducing concentrated liquidity, enabling liquidity providers (LPs) to concentrate their capital within specified price ranges, while also incorporating multi-tiered fee structures. This completely overcame the traditional AMM limitation of low capital utilization, achieving a dramatic leap in capital efficiency.

SunSwap V4, while fully preserving the foundational AMM trading logic of V1/V2 and inheriting the core advantages of concentrated liquidity from V3, moves beyond mere optimization of single trading functions. It is fundamentally reimagined with the core objectives of reducing trading energy consumption, enhancing scalability, and opening a customizable ecosystem. Through revolutionary底层技术 upgrades, SunSwap is now officially positioned as a next-generation AMM core protocol. This milestone upgrade provides a high-performance, highly scalable financial infrastructure for the increasingly mature DeFi ecosystem, powerfully supporting the continued evolution of trading strategies toward greater complexity, professionalism, and customization.

This SunSwap V4 upgrade centers on six core features: native TRX direct connectivity, singleton mode, lightning accounting, Hooks, custom accounting, and a subscriber mechanism. With dual advantages of “extreme cost efficiency” and “high customization,” it redefines AMM industry standards across four dimensions—underlying architecture, transaction logic, development permissions, and user experience—significantly reducing transaction energy consumption and costs while unlocking limitless innovation possibilities for the DeFi ecosystem.

The upgrade of SunSwap V4 is not a simple addition of individual features, but a systemic reconstruction from the underlying architecture to trading logic. Below is an in-depth analysis of the six core functions driving this innovation:

1. Restore native TRX support:Direct native TRX transactions significantly reduce trading costs

SunSwap V4 has officially restored native TRX support, allowing users to directly pair TRX with TRC-20 tokens for trading without needing to wrap TRX as WTRX.

Looking back at the evolution of the protocol, SunSwap V1 originally used native TRX trading pairs, but V2 removed this mechanism due to considerations such as liquidity fragmentation. Since then, both V2 and V3 required WTRX to be wrapped for trading. V4’s return not only eliminates the cumbersome steps of wrapping and unwrapping TRX, but also directly reduces the number of contract interactions, further lowering transaction energy costs and delivering users a purer, more efficient native TRON trading experience.

2. Singleton Pattern: Centralize fund pool management to resolve liquidity fragmentation

The Singleton pattern is the new pool contract management architecture for SunSwap V4. Each trading pool corresponds to a separate contract, and deploying a new liquidity pool requires deploying a new contract each time. This not only increases deployment costs but also forces cross-pool trades to frequently switch between multiple contracts, raising on-chain gas fees and transaction times.

V4 adopts the singleton pattern to consolidate all liquidity pools under a single contract for unified management. Developers no longer need to deploy separate contracts for each liquidity pool, significantly reducing deployment costs. More importantly, cross-pool trades can be executed efficiently within the same contract, greatly optimizing routing efficiency, conserving network resources, and eliminating liquidity fragmentation.

3. Lightning Accounting: Unified net settlement reduces Gas costs significantly

Built on a singleton architecture, SunSwap V4 introduces a new "lightning accounting" mechanism—during transactions, only net balance changes (deltas) are recorded, with final settlement performed as a single net adjustment after the entire operation is complete. This design significantly reduces gas fees during trading.

In versions V1-V3, each liquidity pool was a separate smart contract, like isolated islands, where every cross-pool interaction (such as A→B→C) required mandatory real-time physical token transfers between contracts. These frequent external contract calls and transfers were not only cumbersome but also the primary source of energy consumption, ultimately limiting the feasibility of complex trading strategies.

When executing multi-step complex asset exchanges, V4 no longer processes individual token transfers one by one; instead, it records net balance changes internally and settles the net difference only once at the end of the entire transaction. This “record but transfer less” model reduces energy consumption for complex strategies such as multi-path arbitrage and aggregated trading by an order of magnitude, making low-cost, high-efficiency complex transactions possible.

4. Hooks: Custom trading rule plugins that unlock endless DeFi innovation combinations

Hooks V4’s most groundbreaking core feature is fundamentally a scalable, modular plugin system. It enables developers to “embed” custom rules and logic code into the protocol, automatically or on-demand triggering them at critical points in a liquidity pool’s lifecycle—such as before or after trades, or when liquidity is added or removed—without modifying the core protocol. This empowers developers with flexible customization capabilities that go beyond the platform’s native functionality, allowing them to inject unique trading rules and extended features into liquidity pools.

Unlike traditional AMMs with fixed rules, the Hooks mechanism enables customizable “thousands of unique pools.” Each liquidity pool can be linked to a dedicated hook contract, configuring independent trading logic—making thousands of differentiated pool configurations possible. Developers can build distinctive financial products on SunSwap’s secure foundation, unlocking limitless innovation for the TRON DeFi ecosystem.

For example, restrict specific addresses from participating in pool trades for compliance or whitelist scenarios; enable dynamic fee mechanisms that intelligently adjust fees based on market activity (increase fees when the pool is busy, reduce them when idle); and easily integrate advanced features such as on-chain oracles, limit orders, and custom price curves to meet diverse trading strategies and ecosystem needs.

5. Custom Accounting: Flexibly align with strategy requirements to build a personalized settlement system

SunSwap V4’s custom accounting mechanism works in deep coordination with hooks, enabling developers to build tailored settlement systems and implement customized fee strategies and liquidity management solutions. This feature provides professional market makers and institutional users with granular control tools to meet the demands of complex scenarios such as high-frequency trading and hedging strategies, while also offering robust technical support for fine-tuning existing models or building entirely new derivative protocols within the V4 ecosystem.

Specifically, developers can embed custom accounting logic into the entire transaction flow through hooks, freeing the settlement process from the default rules of the underlying AMM protocol. Developers gain precise control over the flow and allocation of funds in each transaction, enabling flexible implementation of advanced features such as customized fee models, intelligent order matching, and personalized market-making strategies. For example, they can design exclusive withdrawal fees for LP positions or build differentiated LP fee structures.

6. Subscriber mechanism: LPs can receive real-time notifications of position changes to support automated liquidity management.

SunSwap V4 introduces a new notification system—the subscription mechanism. Liquidity providers (LPs) can opt into a subscription contract to receive real-time notifications for position modifications or transfers. This mechanism provides a real-time data interface for third-party protocols and automated management tools, enabling LPs to automate liquidity management through third-party protocols and tools, offering foundational support for professional liquidity operations.

Overall, SunSwap V4 achieves a dual breakthrough in极致交易成本 optimization and unprecedented protocol scalability through six core innovations: native TRX direct connectivity, singleton pattern, lightning accounting, Hooks, custom accounting, and a subscriber mechanism—delivering a seamless, low-cost trading experience for everyday users while granting developers unprecedented programmable innovation capabilities.

From the early exploration of the V1 ecosystem to the foundational innovations of V4, each SunSwap version has precisely targeted industry bottlenecks in AMM technology and the core needs of the TRON ecosystem, continuously driving the evolution and upgrading of TRON’s underlying DeFi trading infrastructure. With the groundbreaking innovations of V4, SunSwap now leads the entire industry into a new era of fully programmable AMM.

SunSwap V4 is not only an advancement over previous versions, but a redefinition of the entire AMM landscape, injecting new momentum into the future development of the TRON ecosystem. Building on the core strengths of V1/V2—simplicity and ease of use—and V3’s concentrated liquidity and high capital efficiency, SunSwap V4 introduces six groundbreaking innovations at the architectural level: native TRX support, singleton mode, lightning accounting, Hooks, custom accounting, and a subscriber mechanism. These innovations significantly reduce transaction energy consumption and costs while elevating protocol scalability to new heights, unlocking limitless innovation potential for the DeFi ecosystem.

Beyond technological innovation, SUN.io is also launching a 99% energy subsidy incentive campaign, allowing users to directly enjoy a 99% energy subsidy when using SunSwap V4, further enhancing the version’s cost advantages.

This underlying reconstruction represents a transformative leap in SunSwap’s positioning: it has evolved from a DEX trading protocol serving everyday users into an open, modular, and infinitely scalable DeFi financial infrastructure. No longer a closed trading tool, it has become a foundational innovation platform empowering developers, projects, and institutional users—injecting unprecedented extensibility and creativity into the TRON DeFi ecosystem and truly achieving a win-win scenario for users, developers, and the ecosystem as a whole.

For users, SunSwap V4 pushes the inherent low-cost advantage of TRON to its extreme. Leveraging foundational innovations such as the singleton pattern and lightning accounting, it eliminates the physical barriers to liquidity fragmentation at their source, enabling smoother and more efficient cross-asset interactions. Combined with up to 99% energy subsidies, users enjoy a seamless and high-performance trading experience while witnessing a dramatic reduction in transaction costs—significantly lowering the barrier to entry for retail investors and becoming the optimal choice for high-frequency traders and arbitrage protocols.

According to data publicly shared by crypto KOL @0xMoon, he compared the transaction costs of SunSwap V1 and V4 over the same time period, showing that V4 reduced transaction costs by approximately 90%. In other words, with the same budget, users can perform nearly 9 times more transactions on V4.

For developers, SunSwap V4 creates an open “DeFi LEGO innovation lab.” With core features such as Hooks and custom accounting, the platform provides a complete set of programmable financial modules for the TRON ecosystem. Developers can rapidly deploy complex financial innovations by assembling components like LEGO bricks, leveraging SunSwap and TRON network’s underlying security capabilities, transforming SunSwap from a single DEX into the ecosystem’s central liquidity hub and foundational innovation platform.

For the ecosystem, the underlying reconstruction of SunSwap V4 has injected sustained internal growth momentum into TRON DeFi. New projects can build liquidity on V4 at lower costs and higher efficiency, continuously attracting high-quality global projects and assets to TRON.

Notably, since the beginning of 2026, SUN.io has achieved two major strategic milestones in succession. On January 19, SUN.io launched its Chinese brand “Sun Wukong,” and its product suite—including SunSwap, SunPump, SunX, and SunDAO—underwent simultaneous brand upgrades, enabling dual Chinese-English branding and marking a strategic leap from a single trading platform to a comprehensive liquidity DeFi ecosystem. Today, SUN.io’s core DEX platform, SunSwap V4, has been officially launched, revolutionizing the AMM underlying architecture to reduce trading costs, enhance user experience, and significantly expand protocol scalability, further solidifying its ecosystem布局.

The official launch of SunSwap V4 is a strong step toward SUN.io’s vision of “safer, more efficient, and more open” finance. It not only redefines the technical standards of AMMs but also transforms from a single trading platform into an open, modular foundational liquidity infrastructure through groundbreaking底层 architecture innovations, paving the way for the next surge of TRON DeFi.