blockcritics.com https://validator.w3.org/feed/docs/rss2.html NEAR Protocol announces BOS hackathon for frontend component development ETHGlobal Scaling Ethereum 2026 hackathon registration now open OpenSea API v3 released with improved metadata standards and batch operations Wormhole v3 launches with generalized message passing for cross-chain dApp development Upcoming hackathon deadlines: March 15 (Solana), March 20 (Avalanche), March 30 (Polygon) Major blockchain hackathon season begins with 3M+ in total prizes ETHGlobal Scaling Ethereum 2026 hackathon registration now open New Web3.js v5 beta released with modular architecture and improved bundle size Upcoming hackathon deadlines: March 15 (Solana), March 20 (Avalanche), March 30 (Polygon) OpenSea API v3 released with improved metadata standards and batch operations ETHGlobal Scaling Ethereum 2026 hackathon registration now open Slither v0.10 introduces AI-powered vulnerability detection for Solidity smart contracts ETHGlobal Scaling Ethereum 2026 hackathon opens registration with 00K prize pool NEAR BOS Hackathon for frontend component development OpenSea API v3 released with improved metadata standards and batch operations Interchain Hackathon challenges developers on IBC-enabled applications Solana Foundation launches Season 4 hackathon with focus on DeFi and gaming applications New Web3.js v5 beta released with modular architecture and improved bundle size Polygon zkEVM hackathon challenges developers to build privacy-preserving dApps Total hackathon prize pools exceed M for Q1 2026 blockchain competitions Solana Grizzlython Season 4 hackathon launches with solanaM prize pool Bitcoin Dev++ Hackathon focuses on Layer 2 and smart contracts Avalanche Multiverse hackathon focuses on subnet development and cross-chain interoperability Avalanche Multiverse Hackathon focuses on subnet development Ethereum developer tools receive major updates for 2026 Hegotá upgrade preparation Ethereum developer tools receive major updates for 2026 Hegotá upgrade preparation ETHGlobal Scaling Ethereum 2026 hackathon registration now open ETHGlobal announces 2026 hackathon schedule with events in Istanbul, Bangalore, and Toronto ETHGlobal Scaling Ethereum 2026 hackathon registration now open Solana Grizzlython Season 4 hackathon launches with solanaM prize pool ETHGlobal Scaling Ethereum 2026 hackathon registration now open ETHGlobal Scaling Ethereum 2026 hackathon registration now open Total hackathon prize pools exceed M for Q1 2026 blockchain competitions Solana Grizzlython Season 4 hackathon launches with solanaM prize pool Ethereum developer tools receive major updates for 2026 Hegotá upgrade preparation Bitcoin Dev++ Hackathon focuses on Layer 2 and smart contracts Hardhat v3.6 adds native support for multiple blockchain networks in single project Major blockchain hackathon season begins with 3M+ in total prizes ETHGlobal Scaling Ethereum 2026 hackathon registration now open Interchain Hackathon challenges developers on IBC-enabled applications Solana Grizzlython Season 4 hackathon launches with solanaM prize pool ETHGlobal Scaling Ethereum 2026 hackathon opens registration with 00K prize pool Total hackathon prize pools exceed M for Q1 2026 blockchain competitions Slither v0.10 introduces AI-powered vulnerability detection for Solidity smart contracts ETHGlobal announces 2026 hackathon schedule with events in Istanbul, Bangalore, and Toronto Polygon zkEVM hackathon challenges developers to build privacy-preserving dApps Wormhole v3 launches with generalized message passing for cross-chain dApp development Interchain hackathon challenges developers to build IBC-enabled applications Solana vs Ethereum vs Layer 2s: Which Blockchain to Build On in 2026 Solana Foundation launches Season 4 hackathon with focus on DeFi and gaming applications