api/v1.10.0

1.10.0

🚀 Features

• feat(api): integrate the Logs API into @opentelemetry/api #4862 @hectorhdzg
• feat(api): add imperative context.attach() for setting context across callback boundaries that with() cannot wrap. #6845 @pichlermarc
  • attach() returns a Token whose dispose() method restores the previous context. Use token.dispose() to detach.
  • attach is an optional method on the ContextManager interface; when the active context manager does not implement it, context.attach() logs a warning and returns a no-op token.
• feat(api): add AnyValue type (of type unknown) and extend Attributes type values to use AnyValue #6780 @trentm
  • This is part of supporting OTEP 4485.
  • This is a breaking change for SDK implementations, in that they may need to support more attribute types for any APIs that accept Attributes or AnyValue. Implementors should refer to the OTEP 4485 link above for "MUST / SHOULD" requirements for complex attributes handling. See also the attributes-handling utilities provided by @opentelemetry/core to help. For example, cleanSimpleAttributes() can be used to limit user-provided attributes to the set of value types supported in earlier @opentelemetry/api versions.
  • This change is typically not a breaking change for users of @opentelemetry/api. There is one possible breaking case: If a TypeScript user was using the Attributes type in their own code and using TypeScript Narrowing to reduce an attribute value to an expected type (example here). It is expected that this usage should be rare and, likely, limited to SDK implementations, if at all. (If this impacted your code, please let us know.)
  • Note for users of attributes: Simple attributes SHOULD be used whenever possible. Instrumentations SHOULD assume that backends do not index individual properties of complex attributes, that querying or aggregating on such properties is inefficient and complicated, and that reporting complex attributes carries higher performance overhead.

🐛 Bug Fixes

• fix(api): cap tracestate list-members and total length in the deprecated TraceState.set() so it stays in step with TraceState from @opentelemetry/core #6964 @Zuhef
• fix: resolve the ESM build through the default export condition instead of import, so a resolver that activates neither import nor require still finds an entry point #7132 @overbalance

📚 Documentation

• docs(api): complete @since annotations for the public API #7023 @nabeelamjadsheikh
  • Adds the three missing exported-type annotations and the member-level annotations for methods and properties introduced after their enclosing type.
  • Corrects Attributes, AttributeValue and TracerOptions from 1.3.0 to 1.1.0; all three were already importable in 1.1.0 via wildcard re-export.

🏠 Internal

• build: migrate the package build from tsc to tsdown, emitting dual CJS/ESM output from a single dist/ directory #6293 @overbalance
  • The public entry points are unchanged: @opentelemetry/api and @opentelemetry/api/experimental. This package already declared an exports map, so deep imports such as @opentelemetry/api/build/src/... were rejected before this change and continue to be.
  • The emitted files moved out of build/src (CJS), build/esm and build/esnext (ESM) into dist/, using .cjs/.mjs extensions with matching .d.cts/.d.mts declarations. The non-standard esnext condition has been dropped in favour of the standard import/require conditions.
• perf(api): add getGlobal fast-path #6956 @legendecas
• chore: remove the redundant module field from package.json; bundlers resolve the ESM build through the exports map #7130 @overbalance