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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.

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.

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.

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.

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.

Developer explores building verifiable, unhackable games using zero-knowledge proofs on Stellar, focusing on a Pong game integrated with Blend protocol's fee vault to distribute yield to game winners.

Developer builds a decentralized chat web app using Soroban smart contracts and speech-to-text API. The 13-line contract stores messages as on-chain events, eliminating need for traditional servers or databases.

Enzo and Fifro from Aha Labs discuss Moonlight, a non-custodial privacy protocol for Stellar, alongside David from LumenShade, which uses zero-knowledge proofs for privacy pools. Both projects aim to enable private payments on Stellar while maintaining compliance with regulations.

Protocol 23 launches September 3rd, enabling parallel transaction processing on Stellar mainnet. Soroban smart contracts gain faster memory access and lower execution costs, while unified events improve wallet and explorer compatibility.

Stellar launches Audit Bank, a community initiative providing developers with subsidized security audits from leading firms. Projects pay only 5% upfront, refundable if critical bugs are fixed within 20 days, with follow-up audits free after reaching $10M-$100M TVL milestones.

Tomer Weller, CPO of Stellar, discusses the implementation of smart contracts via Soroban, the network's consensus mechanism, and upcoming innovations including scalability improvements and privacy solutions to support institutional adoption.

Stellar Foundation and Veridice discuss the Stellar Security Audit Bank, a program providing free security audits to Soroban developers. The initiative aims to make security proactive rather than reactive, with audits funded through the Stellar Community Fund for qualifying DeFi protocols.

Freely built a payout system on Stellar that lets businesses split payments across multiple recipients in different countries. Using smart wallets, policy signers, and anchors, the team created a secure, low-cost solution for remittances and bulk disbursements, launching mainnet in approximately two months.

Tutorial demonstrating how to build a passkey-enabled smart wallet application on Stellar using PasskeyKit, enabling biometric authentication and decentralized user credential systems without centralized backends.

Tutorial on building a Soroban smart contract implementing a call option using XLM and USDC tokens. Covers option mechanics, contract code structure, unit testing with time simulation, and deployment to testnet.

Tutorial on writing and deploying your first Soroban smart contract in Rust, from Hello World to a practical hit counter example with web integration and three key developer tips.

Two developers live-code a fungible token and NFT contract on Soroban using the Soroban Playground, a new web-based IDE for smart contract development. They deploy working contracts to testnet and explore the contract explorer interface.

OpenZeppelin released a new NFT royalties extension for Stellar's Soroban smart contracts, enabling developers to set up and earn royalties on NFT collections. The tutorial demonstrates how to deploy and configure the royalty contract on testnet.

Caio Matos, CEO of NierX, announces Hack Meridian, a global blockchain hackathon coming to Rio de Janeiro on September 15-16, 2025, hosted at Copacabana Palace with 50,000 USD in prizes and 500 developers from 30+ countries competing across DeFi, Composability, and Open Innovation tracks.

Developer builds a binary prediction market smart contract on Stellar's Soroban platform, demonstrating how to create true/false outcome betting using open-source code with token transfers, oracle integration, and individual claim functions.

Vivo from Ahlabs demonstrates Scaffold Stellar, a comprehensive developer framework for building on Stellar and Soroban. The tool includes CLI plugins, contract templates, local deployment, TypeScript client generation, and an integrated contract explorer frontend.