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core: prepare to release v0.1.31 #2594

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May 11, 2023
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core: prepare to release v0.1.31 #2594

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31 changes: 31 additions & 0 deletions tracing-core/CHANGELOG.md
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@@ -1,3 +1,34 @@
# 0.1.31 (May 11, 2023)

This release of `tracing-core` fixes a bug that caused threads which call
`dispatcher::get_default` _before_ a global default subscriber is set to never
see the global default once it is set. In addition, it includes improvements for
instrumentation performance in some cases, especially when using a global
default dispatcher.

### Fixed

- Fixed incorrect thread-local caching of `Dispatch::none` if
`dispatcher::get_default` is called before `dispatcher::set_global_default`
([#2593])

### Changed

- Cloning a `Dispatch` that points at a global default subscriber no longer
requires an `Arc` reference count increment, improving performance
substantially ([#2593])
- `dispatcher::get_default` no longer attempts to access a thread local if the
scoped dispatcher is not in use, improving performance when the default
dispatcher is global ([#2593])
- Added `#[inline]` annotations called by the `event!` and `span!` macros to
reduce the size of macro-generated code and improve recording performance
([#2555])

Thanks to new contributor @ldm0 for contributing to this release!

[#2593]: https://github.com/tokio-rs/tracing/pull/2593
[#2555]: https://github.com/tokio-rs/tracing/pull/2555

# 0.1.30 (October 6, 2022)

This release of `tracing-core` adds a new `on_register_dispatch` method to the
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2 changes: 1 addition & 1 deletion tracing-core/Cargo.toml
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Expand Up @@ -8,7 +8,7 @@ name = "tracing-core"
# - README.md
# - Update CHANGELOG.md.
# - Create "v0.1.x" git tag.
version = "0.1.30"
version = "0.1.31"
authors = ["Tokio Contributors <team@tokio.rs>"]
license = "MIT"
readme = "README.md"
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26 changes: 13 additions & 13 deletions tracing-core/README.md
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Expand Up @@ -16,9 +16,9 @@ Core primitives for application-level tracing.
[Documentation][docs-url] | [Chat][discord-url]

[crates-badge]: https://img.shields.io/crates/v/tracing-core.svg
[crates-url]: https://crates.io/crates/tracing-core/0.1.30
[crates-url]: https://crates.io/crates/tracing-core/0.1.31
[docs-badge]: https://docs.rs/tracing-core/badge.svg
[docs-url]: https://docs.rs/tracing-core/0.1.30
[docs-url]: https://docs.rs/tracing-core/0.1.31
[docs-master-badge]: https://img.shields.io/badge/docs-master-blue
[docs-master-url]: https://tracing-rs.netlify.com/tracing_core
[mit-badge]: https://img.shields.io/badge/license-MIT-blue.svg
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```toml
[dependencies]
tracing-core = { version = "0.1.30", default-features = false }
tracing-core = { version = "0.1.31", default-features = false }
```

**Note**:`tracing-core`'s `no_std` support requires `liballoc`.

[`tracing`]: ../tracing
[`span::Id`]: https://docs.rs/tracing-core/0.1.30/tracing_core/span/struct.Id.html
[`Event`]: https://docs.rs/tracing-core/0.1.30/tracing_core/event/struct.Event.html
[`Subscriber`]: https://docs.rs/tracing-core/0.1.30/tracing_core/subscriber/trait.Subscriber.html
[`Metadata`]: https://docs.rs/tracing-core/0.1.30/tracing_core/metadata/struct.Metadata.html
[`Callsite`]: https://docs.rs/tracing-core/0.1.30/tracing_core/callsite/trait.Callsite.html
[`Field`]: https://docs.rs/tracing-core/0.1.30/tracing_core/field/struct.Field.html
[`FieldSet`]: https://docs.rs/tracing-core/0.1.30/tracing_core/field/struct.FieldSet.html
[`Value`]: https://docs.rs/tracing-core/0.1.30/tracing_core/field/trait.Value.html
[`ValueSet`]: https://docs.rs/tracing-core/0.1.30/tracing_core/field/struct.ValueSet.html
[`Dispatch`]: https://docs.rs/tracing-core/0.1.30/tracing_core/dispatcher/struct.Dispatch.html
[`span::Id`]: https://docs.rs/tracing-core/0.1.31/tracing_core/span/struct.Id.html
[`Event`]: https://docs.rs/tracing-core/0.1.31/tracing_core/event/struct.Event.html
[`Subscriber`]: https://docs.rs/tracing-core/0.1.31/tracing_core/subscriber/trait.Subscriber.html
[`Metadata`]: https://docs.rs/tracing-core/0.1.31/tracing_core/metadata/struct.Metadata.html
[`Callsite`]: https://docs.rs/tracing-core/0.1.31/tracing_core/callsite/trait.Callsite.html
[`Field`]: https://docs.rs/tracing-core/0.1.31/tracing_core/field/struct.Field.html
[`FieldSet`]: https://docs.rs/tracing-core/0.1.31/tracing_core/field/struct.FieldSet.html
[`Value`]: https://docs.rs/tracing-core/0.1.31/tracing_core/field/trait.Value.html
[`ValueSet`]: https://docs.rs/tracing-core/0.1.31/tracing_core/field/struct.ValueSet.html
[`Dispatch`]: https://docs.rs/tracing-core/0.1.31/tracing_core/dispatcher/struct.Dispatch.html

## Supported Rust Versions

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