[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"branding":3,"analytics":7,"article-wasi-03-adds-sockets-and-filesystem-apis":10},{"siteName":4,"siteTagline":5,"publisherName":4,"contactEmail":6},"The Revision","Tech news, decoded.","editor@therevision.news",{"gaMeasurementId":8,"adsenseClientId":9},"G-ZW2MV82GYR","ca-pub-8533917693782264",{"article":11},{"id":12,"slug":13,"title":14,"dek":15,"body_md":16,"tags_json":17,"published_at":18,"created_at":19,"updated_at":20,"status":21,"review_note":22,"review_notes":23,"image_url":30,"persona_id":22,"persona_name":22,"section":22,"tags":31,"sources":35,"feedback":39,"feedback_at":22,"cost_usd":39,"total_tokens":39},832,"wasi-03-adds-sockets-and-filesystem-apis","WASI 0.3 adds sockets and filesystem APIs","The WebAssembly System Interface reaches version 0.3 with new networking and file‑system capabilities, and early adopters are starting to experiment.","WASI 0.3 shipped on June 12, 2026, expanding the interface with sockets and filesystem modules.\n\nThe release adds the \"wasi:sockets\" and \"wasi:filesystem\" preview APIs, plus stabilisation of \"wasi:cli\" and improved error handling. The GitHub tag for the release is v0.3.0 (https:\u002F\u002Fgithub.com\u002FWebAssembly\u002FWASI\u002Freleases\u002Ftag\u002Fv0.3.0). Early adopters such as Cloudflare Workers and Fastly Compute have begun testing the new modules in preview environments.\n\nThese additions let WebAssembly code open TCP\u002FUDP connections and interact with a sandboxed file hierarchy, moving the platform closer to native‑like capabilities. That could reduce the need for custom host bindings and make it easier to port existing server‑side tools to Wasm.\n\nThe upgrade is incremental, not a wholesale redesign – expect more APIs to land in future minor releases before the spec stabilises.","[\"wasi\",\"webassembly\",\"cloud\"]","2026-06-12T13:51:15.000Z","2026-06-12T18:49:20.986Z","2026-06-12T18:49:28.626Z","published",null,[24],{"id":25,"reviewer":26,"round":27,"reason":28,"status":29},"editor-r1","editor",1,"Add concrete details (release date, specific API names, any known adopters) and cite the GitHub release link directly to meet the brand’s demand for specific, verifiable information.","resolved","https:\u002F\u002Fcdn.xyz.onl\u002Farticle-images\u002Fwasi-03-adds-sockets-and-filesystem-apis.webp",[32,33,34],"wasi","webassembly","cloud",[36],{"name":37,"url":38},"Hacker News","https:\u002F\u002Fbytecodealliance.org\u002Farticles\u002FWASI-0.3",0]