The decentralized exchange aggregator Jupiter, operating on Solana, has introduced the third version of its Ultra protocol. The team calls it “the most advanced trading engine ever created.”
According to the project, Ultra v3 offers 34 times more effective protection against sandwich attacks, industry-leading slippage handling, and up to 10 times lower execution fees.
Along with Ultra v3 a new router was introduced — Iris — a meta-aggregator that searches for the best prices across different platforms, including JupiterZ, DFlow, Hashflow and OKX. JupiterZ is a proprietary Request for Quote (RFQ) system, which, according to the team, processes about $100 million per day without slippage. Now it will be available exclusively through Ultra v3.
At launch, Ultra v3 is integrated into all Jupiter products — the mobile and desktop app, as well as the API and Pro tools.
A key component of the new protocol is the predictive execution engine. It automatically selects optimal routes to avoid slippage and uses instant simulations to provide the most accurate price.
The update also introduces a proprietary transaction execution module called ShadowLane. It provides private trade execution in fractions of a second.
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In addition, Ultra v3 strengthens protection against MEV attacks — situations where third parties try to profit from your trades. Jupiter emphasizes that many platforms only worsen the problem by passing trade data to third-party MEV bots. In Ultra v3 this does not happen — orders do not go to external services but are executed within the system, reducing the risk of sandwich attacks and other manipulations.
Also, Jupiter has expanded support for the Gasless feature — now users can make trades even if they do not have SOL in their wallet to pay the fee. The system will calculate the required gas and deduct this amount from the tokens involved in the swap. This option is now also available for new tokens from the Token-2022 standard, as well as for “memecoin-memecoin” pairs. The minimum trade volume has also been reduced — to $10.
