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uv 0.11.19 + CPython 3.15, Spring AI 2.0
Sonnet 5 launches: Opus performance at lower cost
Mistral Vibe 2.0 subagents, sub-200ms transcription, Claude 5
Claude Opus 4.8: 4x fewer agent errors, same cost
Gemini 3.5 Flash scales agentic workflows
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