ZeroTierOne/ext/opentelemetry-cpp-1.21.0/DEPRECATED.md
2025-07-11 10:37:21 -07:00

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# Deprecated
This document lists all the items currently deprecated in opentelemetry-cpp.
Deprecated items will be removed in the future.
## Guidelines
### Maintainer guidelines
See the [deprecation-process](./docs/deprecation-process.md)
## [TEMPLATE]
### New Deprecation Title (Template)
#### Announcement (Template)
#### Motivation (Template)
#### Scope (Template)
#### Mitigation (Template)
#### Planned removal (Template)
## [Platforms]
N/A
## [Compilers]
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## [Third party dependencies]
N/A
## [Build tools]
N/A
## [Build scripts]
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## [opentelemetry-cpp API]
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## [opentelemetry-cpp SDK]
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## [opentelemetry-cpp Exporter]
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## [Documentation]
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## Semantic conventions
### Header files "semantic_conventions.h"
#### Announcement (semantic_conventions.h)
Deprecation is announced as part of the migration to weaver:
* `Version:` release following opentelemetry-cpp 1.17.0
* `Date:` Nov 9, 2024
* `PR:` [PR 3105](https://github.com/open-telemetry/opentelemetry-cpp/pull/3105)
#### Motivation (semantic_conventions.h)
The header files for semantic conventions are generated automatically.
The tooling to generate these files is changing:
* before, the build-tool repository was used
* now, the weaver repository is used
Changes in tooling allows to generate code that is better organized,
with dedicated header files per group of semantic conventions,
instead of a single header file for everything.
#### Scope (semantic_conventions.h)
The following files:
* `api/include/opentelemetry/trace/semantic_conventions.h`
* `sdk/include/opentelemetry/sdk/resource/semantic_conventions.h`
are now deprecated.
They correspond to semantic conventions v1.27.0,
and will no longer be maintained up to date.
These files will be removed in the future.
#### Mitigation (semantic_conventions.h)
Two things have changed:
* the header file to use
* the symbol name to use.
Before, the semantic convention for `url.full` was:
* declared in file `semantic_conventions.h`
* declared as symbol `SemanticConventions::kUrlFull`
Now, the `url.full` convention, which is part or the `url` group, is:
* declared in file `semconv/url_attributes.h`
* declared as symbol `semconv::url::kUrlFull`
Application code that uses semantic conventions must be adjusted
accordingly.
In addition, semantic conventions that are not marked as stable
are generated in a different header file, placed under directory
`incubating`, to better separate stable and non stable code.
For example, file `semconv/incubating/url_attributes.h`
defines `semconv::url::kUrlDomain`,
which is not marked as stable in semconv v1.27.0
#### Planned removal (semantic_conventions.h)
The following files:
* `api/include/opentelemetry/trace/semantic_conventions.h`
* `sdk/include/opentelemetry/sdk/resource/semantic_conventions.h`
will be removed.
The removal date is planned for July 1, 2025.
This allows more than six months for applications to adjust.