Stabilize complex AnyValue types and related attribute limits#4794
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lmolkova merged 10 commits intoopen-telemetry:mainfrom Jan 7, 2026
Merged
Stabilize complex AnyValue types and related attribute limits#4794lmolkova merged 10 commits intoopen-telemetry:mainfrom
lmolkova merged 10 commits intoopen-telemetry:mainfrom
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pellared
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lmolkova
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Dec 10, 2025
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FYI: no concerns shared in the feedback-tracking issue open-telemetry/community#3119 (we advertised it in https://opentelemetry.io/blog/2025/complex-attribute-types/) |
trask
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Dec 16, 2025
jack-berg
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tsloughter
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cijothomas
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Jan 5, 2026
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@open-telemetry/technical-committee please take a look, the goal is to merge is tomorrow (unless there are concerns) |
MrAlias
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Jan 6, 2026
dashpole
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tedsuo
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reyang
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### Metrics - Stabilize part of `Enabled` SDK for synchronous instruments. ([open-telemetry#4787](open-telemetry#4787)) ### Logs - Add optional Ergonomic API. ([open-telemetry#4741](open-telemetry#4741)) ### SDK Configuration - Declarative configuration: clarify default behavior and validation requirements of `create` and `parse`. ([open-telemetry#4780](open-telemetry#4780)) - Declarative configuration: add optional programmatic customization to `create`, and add related supplemental guidelines. ([open-telemetry#4777](open-telemetry#4777)) - Declarative configuration: add links between SDK extension plugins and corresponding declarative config types. ([open-telemetry#4802](open-telemetry#4802)) - Declarative configuration: clarify Registry ComponentProvider `type` parameter ([open-telemetry#4799](open-telemetry#4799)) ### Common - Stabilize complex `AnyValue` attribute value types and related attribute limits. ([open-telemetry#4794](open-telemetry#4794))
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Fixes #4710
OTEP #4485 (Extending attributes to support complex values)
What
Stabilize the complex
AnyValueattribute value types and the corresponding attribute limits.Simplifiy the Logs Data Model to rely on
AnyValueand Attribute Collections instead of customany/map<string, any>types.Why
Per the OTEP-implementing PR #4485 tht was merged on 2025‑07‑15, so the 6‑month window ends around 2026‑01‑15. This PR is intended to be merged around 2026‑01‑15, in line with that requirement.
OpenTelemetry Go and Java treat the common package as a stable cross‑cutting surface. They need these
AnyValuetypes and limits to be Stable in the spec before they can add corresponding features to their APIs, SDKs, and exporters.Prototypes
We have three independent prototypes that exercised the complex
AnyValueattribute types and limits:In summary, they:
AnyValue.Other
I was thinking about adding something to
spec-compliance-matrix.md, but I do not see any obvious place where it could be located. I think we can tackle it in a separate PR if there would be a demand for it.EDIT: Tracked under #4808