●2.1.296 — Subagents can set their own autoCompactWindow, and an env var pins the model used by workflow agents●AGENTS — Managed Agents gain dynamic workflows in beta: an agent can build a run for work with many pieces (Oct 9)●SONNET 4.5 — Retires on the Claude API on 11/30, 50 days left. Migrate to Sonnet 5.5●Q&A — A long-running report: Max plan users hit usage limits almost immediately●HAIKU 5.5 — Code written for Haiku 4.5 hits a 400 error on budget_tokens●NEW — Before you cut an always-loaded instruction file in half, sort it into three drawers●2.1.296 — Subagents can set their own autoCompactWindow, and an env var pins the model used by workflow agents●AGENTS — Managed Agents gain dynamic workflows in beta: an agent can build a run for work with many pieces (Oct 9)●SONNET 4.5 — Retires on the Claude API on 11/30, 50 days left. Migrate to Sonnet 5.5●Q&A — A long-running report: Max plan users hit usage limits almost immediately●HAIKU 5.5 — Code written for Haiku 4.5 hits a 400 error on budget_tokens●NEW — Before you cut an always-loaded instruction file in half, sort it into three drawers