Bitcoin - The Bitcoin Core development team has appointed TheCharlatan as a Trusted Keys maintainer, increasing the number of PGP key maintainers with commit access to six [1] Ethereum - The Glamsterdam upgrade is expected between June and August 2026, maintaining a biannual upgrade schedule [1] - The Blob Pressure Optimization (BPO2) upgrade has been successfully implemented on the Ethereum mainnet, increasing the target value to 14 blobs per block and the maximum capacity to 21 [2] - The ERC-8004 standard is set to launch on the mainnet, enabling AI agents to interact across organizations while ensuring reputation flows globally [2] - Vitalik Buterin has outlined plans for Ethereum to systematically address past regressions in self-sovereignty and trustlessness by 2026, focusing on reducing the barriers for running full nodes and enhancing privacy features [3] - The OP Stack has introduced a post-quantum roadmap, planning to phase out ECDSA EOA over the next decade [4] - Starknet has released a post-mortem report on a recent mainnet outage, attributing the issue to inconsistencies between execution and proof layers [4] Layer 2 Solutions - ZKsync has published its 2026 roadmap, focusing on three core areas: Prividium for enterprise privacy, ZK Stack for cross-chain operations, and Airbender for developer experience [5] Solana - Jito has launched the IBRL Explorer tool to transparently display block construction details, highlighting issues like "tail packing" and "Slot Timing Games" that may affect network stability [7] BNB Chain - Brevis is collaborating with BNB Chain to expand privacy infrastructure, launching the "Intelligent Privacy Pool" in Q1 2026 [8] - The opBNB has completed a hard fork, reducing block time from 500 milliseconds to 250 milliseconds [8] SUI - The Sui mainnet has upgraded to version V1.63.3, optimizing transaction confirmation paths and addressing consensus issues among rejected transaction validation nodes [9] Security - A security alert has been issued regarding potential risks in VS Code-based IDEs, recommending users disable automatic task execution to prevent malicious code execution [10] - A vulnerability has been disclosed in the Bitcoin staking protocol Babylon, allowing malicious validators to potentially disrupt block production [11] Other - Stripe and Paradigm have launched the Tempo payment public chain with a new native token standard TIP-20, designed for stablecoins and payment use cases [12]