{"type":"post","id":"claude-developer-platform-release-notes-d9ca32","slug":"claude-developer-platform-release-notes-d9ca32","title":"Claude Developer Platform release notes","description":"Anthropic's Claude Platform release notes record the October 7, 2026 launch of Claude Haiku 5.5 (`claude-haiku-5-5`).","retrieval_nugget":"Anthropic's Claude Platform release notes record the October 7, 2026 launch of Claude Haiku 5.5 (`claude-haiku-5-5`).","published_at":"2026-10-23","updated_at":"2026-10-23","record_date":"2026-10-23","date_kind":"published_at","topics":["claude","anthropic","google"],"entities":["Anthropic","Claude Haiku 5.5","Claude API","Amazon Bedrock","Google Cloud","Microsoft Foundry","Python SDK","TypeScript SDK"],"related_patterns":["harness-architecture-outlives-model-choice"],"novelty_label":"new_fact","what_changed":"The release notes add separate Claude API and SDK updates; the excerpt doesn't specify the Haiku 5.5 launch or SDK tool-loop beta updates named in the canonical topic.","prior_refs":["memory:686b3944-1e5f-8fc2-a706-420657c87550","memory:4291fd85-3afa-8556-ae9a-551e708bdcdb"],"source_url":"https://platform.claude.com/docs/en/release-notes/overview","source_urls":["https://platform.claude.com/docs/en/release-notes/overview"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:claude-developer-platform-release-notes-d9ca32","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/claude-developer-platform-release-notes-d9ca32/","markdown":"https://newruntime.com/posts/claude-developer-platform-release-notes-d9ca32.md","json":"https://newruntime.com/posts/claude-developer-platform-release-notes-d9ca32.json"},"next_reads":[{"type":"topic","path":"/topics/claude/","url":"https://newruntime.com/topics/claude/","title":"Claude","reason":"Explore the claude topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude.md","json_url":"https://newruntime.com/topics/claude.json"},{"type":"topic","path":"/topics/anthropic/","url":"https://newruntime.com/topics/anthropic/","title":"Anthropic","reason":"Explore the anthropic topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/anthropic.md","json_url":"https://newruntime.com/topics/anthropic.json"},{"type":"topic","path":"/topics/google/","url":"https://newruntime.com/topics/google/","title":"Google","reason":"Explore the google topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/google.md","json_url":"https://newruntime.com/topics/google.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"}]}