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CAP75 proposes adding two native host functions to Soroban for Poseidon and Poseidon 2 permutations, enabling efficient zero-knowledge proof operations on BLS and BN254 fields without expensive contract-side implementations.

Pam and Willem from AHA Company introduce the Stellar Registry and Registry CLI, a package manager for Soroban smart contracts that enables human-readable naming, versioning, and simplified contract deployment and upgrades on Stellar.

Tutorial on creating and distributing tokens on Stellar using Merkle trees for efficient airdrop verification. Demonstrates building a token contract with claim functionality, using Soroban smart contracts and a React frontend.

Stellar developers discussed CAP74, which adds BN254 pairing-friendly curve support to Soroban via three new host functions, and explored approaches for implementing Poseidon hash functions to support zero-knowledge proof use cases on the network.

Garant from Stellar Development Foundation presents Protocol 23 (WISC) performance enhancements for smart contracts, including parallel transaction execution via conflict-free parallelism, in-memory state caching, and reusable module caching that reduce instruction costs by up to 80% and improve network throughput.

Enrique shares his four-year journey building wallets in Stellar, discussing why smart wallets matter for user adoption and announcing XBull V2, which combines classic account benefits with smart wallet features using passkey authentication.

OpenZeppelin's Bojan discusses the Stellar Contracts Library, built in under a year with four audits completed. The library provides foundational smart contract tools including tokens, access controls, and innovative features like smart accounts with passkeys and real-world asset tokenization tailored for Soroban.

Lee from the Stellar Development Foundation discusses three low-level features that power great developer tools: contract specs (embedded IDL), the Soroban runtime environment, and XDR JSON for readable transaction data.

Mule Fahreau discusses formal verification best practices for Soroban smart contracts, covering code modularity, AI-assisted refactoring, and combining AI with formal verification tools to improve security and auditability.

Francesco from Almanacs discusses AI-powered security tools for blockchain, highlighting how AI-generated code increases attack surface and why traditional security tools fall short. Almanacs launches in the Stellar Audit Bank to provide subsidized security scans for Soroban projects.

Stellar core developer discusses blockchain scalability through commutative APIs and parallel execution, presenting research on batch exchange markets and machine code smart contracts to enable orders of magnitude more on-chain computation without sacrificing decentralization.

Tyler from the Stellar Development Foundation discusses how AI fundamentally changes software development economics and why Stellar is uniquely positioned to secure an AI-driven future through cryptographic safeguards and zero-knowledge proofs.

Meridian Pay is a Stellar Smart Wallet built by SDF and Cheesecake Labs that delivers Web2-like UX on mainnet. It uses passkeys for passwordless authentication, Merkle trees for efficient token distribution, and the wallet backend for fee sponsorship and transaction indexing.

Stellar Development Foundation CEO unveils Meridian Pay, a production-ready smart wallet built with Cheesecake Labs, at Meridian 2025 in Rio de Janeiro. The wallet showcases Stellar's capabilities for real-world financial applications with open-sourced code, smart contract templates, and instant XLM disbursement to attendees.

Chad Oh from The Aha Company presents Scaffold Stellar, a rapid application development tool for building Stellar dApps with smart defaults and minimal setup. The talk covers the Stellar Scaffold CLI for project initialization and the Stellar Registry for publishing and managing WASM binaries on-chain.

Stellar Development Foundation research team discusses performance and scalability improvements including JIT execution for Soroban contracts, parallel processing strategies, network overlay optimization, and consensus protocol enhancements targeting sub-second latency.

Marta from Stellar Core team discusses 2025 scalability achievements, including background transaction processing, parallel Soroban execution, and theoretical throughput nearly doubling to over 2400 TPS. The team is experimenting with consensus-execution pipelining to further increase throughput while maintaining latency.

NetherMind's ZK engineering team presented a privacy solution for Stellar using zero-knowledge proofs and privacy pools with regulatory compliance, addressing the blockchain's transparency-by-design limitation while enabling opt-in privacy for users.

Lucien from Boundless and Matteo from NetherMind demonstrate how to bring zero-knowledge proofs to Stellar via Boundless, enabling privacy, removing transaction limits, and unlocking new DeFi applications like private AMMs through verifiable off-chain computation.

Stellar Development Foundation presents confidential transfer protocol for Stellar blockchain, enabling encrypted transaction amounts and balances while maintaining regulatory compliance through selective disclosure and zero-knowledge proofs.

Numix presented the Diamond Proxy Standard for Soroban, enabling upgradable smart contracts with shared storage. This allows asset managers to deploy on-chain without immutability constraints, addressing regulatory compliance needs for real-world asset tokenization on Stellar.

Protocol enhancement proposals for Stellar's Soroban smart contracts: CAP 71 introduces delegated authentication to simplify multi-signer logic, CAP 72 adds contract signers to classic accounts, and CAP 73 enables trust line creation from Soroban.

OpenZeppelin developer Steve Sinkens demonstrates monitors and relayers, open-source backend services for Stellar smart contracts. Monitors watch contracts and trigger notifications; relayers execute transactions on-chain based on custom rules. Both tools are essential for Meridian hackathon participants building on Soroban.

Esteban Iglesias from Paltolabs presents SourceSwap and DeFindex, two major DeFi protocols on Stellar. SourceSwap is a DEX aggregator that routes trades across multiple liquidity sources via smart contracts and APIs, while DeFindex enables wallets and fintech apps to offer yield-generating savings accounts through automated DeFi strategies.