{"type":"post","id":"agents-sdk-0-30-0-moves-the-pi-38a762","slug":"agents-sdk-0-30-0-moves-the-pi-38a762","title":"Agents SDK 0.30.0 moves the Pi harness to Pi 1.4, a storage migration that cannot be rolled back to Pi 1.3","description":"Cloudflare Agents SDK 0.30.0 updates its Pi harness for Pi 1.4, adding hibernation-aware wake handling and more resilient task recovery.","retrieval_nugget":"Cloudflare Agents SDK 0.30.0 updates its Pi harness for Pi 1.4, adding hibernation-aware wake handling and more resilient task recovery. The upgrade also changes session storage to a schema Pi 1.3 cannot open, making rollback across the boundary impossible; teams need to treat it as a deployment migration, not a routine compatible bump.","published_at":"2026-10-31","updated_at":"2026-10-31","record_date":"2026-10-31","date_kind":"published_at","topics":["harness-engineering","agent-runtime"],"entities":["Cloudflare","Cloudflare Agents SDK","Pi","PiHarness","Durable Objects"],"related_patterns":["harness-architecture-outlives-model-choice"],"novelty_label":"new_fact","what_changed":"Agents SDK 0.30.0 moves its Pi harness to Pi 1.4 and introduces a storage migration that cannot be rolled back to Pi 1.3.","prior_refs":["memory:be215de7-5f0b-8810-a4b7-69dbc83553e9","memory:a2efafdb-e16b-866d-a774-907307a3f25c"],"source_url":"https://github.com/cloudflare/agents/releases/tag/agents%400.30.0","source_urls":["https://github.com/cloudflare/agents/releases/tag/agents%400.30.0"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:agents-sdk-0-30-0-moves-the-pi-38a762","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/agents-sdk-0-30-0-moves-the-pi-38a762/","markdown":"https://newruntime.com/posts/agents-sdk-0-30-0-moves-the-pi-38a762.md","json":"https://newruntime.com/posts/agents-sdk-0-30-0-moves-the-pi-38a762.json"},"next_reads":[{"type":"topic","path":"/topics/harness-engineering/","url":"https://newruntime.com/topics/harness-engineering/","title":"Harness Engineering","reason":"Explore the harness-engineering topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/harness-engineering.md","json_url":"https://newruntime.com/topics/harness-engineering.json"},{"type":"topic","path":"/topics/agent-runtime/","url":"https://newruntime.com/topics/agent-runtime/","title":"Agent Runtime","reason":"Explore the agent-runtime topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/agent-runtime.md","json_url":"https://newruntime.com/topics/agent-runtime.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}