Sebastian Ullrich f47dfe9e7f perf: Options.hasTrace (#12001) ... Drastically speeds up `isTracingEnabledFor` in the common case, which has evolved from "no options set" to "`Elab.async` and probably some linter options set but no `trace`". ## Breaking changes `Lean.Options` is now an opaque type. The basic but not all of the `KVMap` API has been redefined on top of it.		2026-01-16 09:03:40 +00:00
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src	perf: Options.hasTrace (#12001)	2026-01-16 09:03:40 +00:00
stdlib	chore: update stage0	2026-01-14 23:05:12 +00:00