n8n 2.38.4 fixes Anthropic agent threads that broke permanently, and keeps a working secrets provider alive when its replacement fails

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n8n-io/[redacted] (published 2026-09-07T08:01Z) is five core fixes with an availability theme. #37722 stops Anthropic agent threads breaking permanently and keeps run errors visible rather than swallowed. #37882 keeps a serving external secrets provider active when its replacement fails to initialize, instead of leaving the instance with no provider at all. #37765 caps task runner task timeouts to the graceful shutdown window and #37886 stops the task broker before task runner processes on shutdown, two ordering bugs that produce hung or half-killed runs. #37877 stops `npm audit` stalling Instance AI sandbox setup.