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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.

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.

Hack Meridian 2025 Shark Tank featured six finalist projects pitching innovations on Stellar: 4Bridge (donation investment platform), Simple Fund (receivable tokenization), Stellar Forge (smart contract deployment), Lance (freelance payments), Panoramablok (RWA DeFi integration), and StarLens (yield-generating accounts).

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.

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.

Sid from SDF presents three budget-friendly analytics approaches for Stellar Network data: Dune (paid tier starting $45/month), exporting Hubble data to DuckDB (~$4), and building local data pipelines with Stellar ETL. Protocol 23 launched on mainnet, enabling new token transfer data abstractions.

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.

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.

Tomer, SDF Chief Product Officer, outlines Stellar's privacy strategy combining blockchain transparency with user privacy through opt-in, configurable solutions. SDF is funding privacy projects, building ZK infrastructure, and developing confidential token and private payment protocols with partners like Nethermind.

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.

Tamer from SDF and Heymanth from Goldsky demonstrate building data indexers on Stellar to track asset movements and circulating supply. They present two approaches: the open-source Stellar Composable Data Platform for custom indexing, and Goldsky Mirror for managed, simplified data pipelines.

Michael from SDF leads a panel discussion on the malicious mindset in security, exploring how questioning assumptions and thinking like an attacker helps build better, more secure products in the Stellar ecosystem.

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.

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.

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 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.

DevRel team member shares practical AI coding workflow using tools like Lovable, Cursor, and Claude to build faster. Demonstrates one-shotting an Asteroids game, discusses MCP servers for context, and explores AI agents for autonomous development.

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.

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.

Alex from Script3 provides a comprehensive overview of Blend, a liquidity protocol primitive on Stellar that enables permissionless lending markets with flexible parameters, backstop insurance modules, and multiple integration points for developers building on Soroban.

Teague from SDF's dev marketing team provides a recap of Day 5 of the Stellar Builder Summit in Toronto, highlighting presentations, a hackathon with builders working late into the night, go-karting, and upcoming events including a baseball game.

Scaffold Stellar is a new developer tool from Aha Labs that provides a ready-to-use web3 app template for building on Stellar. It includes contract examples, wallet integration, and local network setup to eliminate boilerplate and accelerate dApp development.