Every processed story in chronological order, with the newest coverage first. Filter by tag, source, or score to drill in.
The removal of `budget_tokens` is a hard breaking change that requires code updates before migrating from Opus 4.7 to 4.8, while the new `speed: "fast"` mode and mid-session system messages extend what agents can do within a single session.
The guide establishes that prompt patterns optimized for Opus 4.8 actively degrade output quality in Claude Fable 5, making migration a correctness issue rather than an optional cleanup.
Any production MCP server that stores session-keyed state will break at the July 28th cutover unless state is migrated to explicit tool-argument handles before then.
Developers maintaining `CLAUDE.md` files or system prompts for Claude-based agents can avoid unnecessary rewrites by targeting only two specific patterns — non-binding action verbs on tool-dependent steps and scope rules without explicit exceptions — rather than auditing every prompt from scratch.
Developers using Claude Opus 4.7 must remove sampling parameters from API calls and switch to adaptive thinking with effort control, requiring code updates and a shift from parameter-based to prompt-based behavior guidance.