274 lines
12 KiB
Markdown
274 lines
12 KiB
Markdown
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# Change Log
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## [Unreleased]
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## [0.4.20] - 2023-07-11
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* Remove rustversion dev-dependency by @Thomasdezeeuw in https://github.com/rust-lang/log/pull/568
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* Remove `local_inner_macros` usage by @EFanZh in https://github.com/rust-lang/log/pull/570
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## [0.4.19] - 2023-06-10
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* Use target_has_atomic instead of the old atomic_cas cfg by @GuillaumeGomez in https://github.com/rust-lang/log/pull/555
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* Put MSRV into Cargo.toml by @est31 in https://github.com/rust-lang/log/pull/557
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## [0.4.18] - 2023-05-28
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* fix markdown links (again) by @hellow554 in https://github.com/rust-lang/log/pull/513
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* add cargo doc to workflow by @hellow554 in https://github.com/rust-lang/log/pull/515
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* Apply Clippy lints by @hellow554 in https://github.com/rust-lang/log/pull/516
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* Replace ad-hoc eq_ignore_ascii_case with slice::eq_ignore_ascii_case by @glandium in https://github.com/rust-lang/log/pull/519
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* fix up windows targets by @KodrAus in https://github.com/rust-lang/log/pull/528
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* typo fix by @jiangying000 in https://github.com/rust-lang/log/pull/529
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* Remove dependency on cfg_if by @EriKWDev in https://github.com/rust-lang/log/pull/536
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* GitHub Workflows security hardening by @sashashura in https://github.com/rust-lang/log/pull/538
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* Fix build status badge by @atouchet in https://github.com/rust-lang/log/pull/539
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* Add call_logger to the documentation by @a1ecbr0wn in https://github.com/rust-lang/log/pull/547
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* Use stable internals for key-value API by @KodrAus in https://github.com/rust-lang/log/pull/550
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* Change wording of list of implementations by @Thomasdezeeuw in https://github.com/rust-lang/log/pull/553
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* Add std-logger to list of implementations by @Thomasdezeeuw in https://github.com/rust-lang/log/pull/554
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* Add `set_max_level_racy` and gate `set_max_level` by @djkoloski in https://github.com/rust-lang/log/pull/544
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* [doc] src/lib.rs : prefix an unused variable with an underscore by @OccupyMars2025 in https://github.com/rust-lang/log/pull/561
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* [doc] src/macros.rs : correct grammar errors of an example in lib documentation by @OccupyMars2025 in https://github.com/rust-lang/log/pull/562
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## [0.4.17] - 2022-04-29
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* Update `kv_unstable` internal dependencies.
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## [0.4.16] - 2022-03-22
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* Fix a conflict with unqualified `Option` use in macros.
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## [0.4.15] - 2022-02-23
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* Silence a warning about the deprecated `spin_loop_hint`.
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* Relax ordering in the atomic `set_max_level` call.
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* Add thumbv4t-none-eabi to targets that don't support atomics
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* Allow levels to be iterated over.
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* Implement `Log` on some common wrapper types.
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* Improvements to test coverage.
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* Improvements to documentation.
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* Add key-value support to the `log!` macros.
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* Tighten `kv_unstable` internal dependencies so they don't bump past their current alpha.
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* Add a simple visit API to `kv_unstable`.
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* Support `NonZero*` integers as values in structured logging
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* Support static strings as keys in structured logging
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## [0.4.14] - 2021-01-27
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* Remove the `__private_api_log_lit` special case.
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* Fixed incorrect combination of `kv_unstable` and `std` features causing compile failures.
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* Remove unstable `Value::to_*` conversions that were incorrectly using `as`.
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* Rename unstable `Value::to_error` to `Value::to_borrowed_error`.
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## [0.4.13] - 2021-01-11
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* This is the same as `0.4.11`, except with a `kv_unstable_std` feature added to aid migrating current dependents to `0.4.14` (which was originally going to be `0.4.13` until it was decided to create a patch from `0.4.11` to minimize disruption).
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## [0.4.12] - 2020-12-24
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### New
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* Support platforms without atomics by racing instead of failing to compile
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* Implement `Log` for `Box<T: Log>`
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* Update `cfg-if` to `1.0`
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* Internal reworks of the structured logging API. Removed the `Fill` API
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and added `source::as_map` and `source::as_list` to easily serialize a `Source`
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as either a map of `{key: value, ..}` or as a list of `[(key, value), ..]`.
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### Fixed
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* Fixed deserialization of `LevelFilter` to use their `u64` index variants
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## [0.4.11] - 2020-07-09
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### New
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* Support coercing structured values into concrete types.
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* Reference the `win_dbg_logger` in the readme.
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### Fixed
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* Updates a few deprecated items used internally.
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* Fixed issues in docs and expands sections.
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* Show the correct build badge in the readme.
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* Fix up a possible inference breakage with structured value errors.
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* Respect formatting flags in structured value formatting.
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## [0.4.10] - 2019-12-16 (yanked)
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### Fixed
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* Fixed the `log!` macros so they work in expression context (this regressed in `0.4.9`, which has been yanked).
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## [0.4.9] - 2019-12-12 (yanked)
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### Minimum Supported Rust Version
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This release bumps the minimum compiler version to `1.31.0`. This was mainly needed for `cfg-if`,
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but between `1.16.0` and `1.31.0` there are a lot of language and library improvements we now
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take advantage of.
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### New
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* Unstable support for capturing key-value pairs in a record using the `log!` macros
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### Improved
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* Better documentation for max level filters.
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* Internal updates to line up with bumped MSRV
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## [0.4.8] - 2019-07-28
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### New
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* Support attempting to get `Record` fields as static strings.
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## [0.4.7] - 2019-07-06
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### New
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* Support for embedded environments with thread-unsafe initialization.
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* Initial unstable support for capturing structured data under the `kv_unstable`
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feature gate. This new API doesn't affect existing users and may change in future
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patches (so those changes may not appear in the changelog until it stabilizes).
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### Improved
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* Docs for using `log` with the 2018 edition.
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* Error messages for macros missing arguments.
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## [0.4.6] - 2018-10-27
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### Improved
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* Support 2018-style macro import for the `log_enabled!` macro.
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## [0.4.5] - 2018-09-03
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### Improved
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* Make `log`'s internal helper macros less likely to conflict with user-defined
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macros.
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## [0.4.4] - 2018-08-17
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### Improved
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* Support 2018-style imports of the log macros.
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## [0.4.3] - 2018-06-29
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### Improved
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* More code generation improvements.
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## [0.4.2] - 2018-06-05
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### Improved
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* Log invocations now generate less code.
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### Fixed
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* Example Logger implementations now properly set the max log level.
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## [0.4.1] - 2017-12-30
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### Fixed
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* Some doc links were fixed.
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## [0.4.0] - 2017-12-24
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The changes in this release include cleanup of some obscure functionality and a more robust public
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API designed to support bridges to other logging systems, and provide more flexibility to new
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features in the future.
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### Compatibility
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Vast portions of the Rust ecosystem use the 0.3.x release series of log, and we don't want to force
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the community to go through the pain of upgrading every crate to 0.4.x at the exact same time. Along
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with 0.4.0, we've published a new 0.3.9 release which acts as a "shim" over 0.4.0. This will allow
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crates using either version to coexist without losing messages from one side or the other.
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There is one caveat - a log message generated by a crate using 0.4.x but consumed by a logging
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implementation using 0.3.x will not have a file name or module path. Applications affected by this
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can upgrade their logging implementations to one using 0.4.x to avoid losing this information. The
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other direction does not lose any information, fortunately!
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**TL;DR** Libraries should feel comfortable upgrading to 0.4.0 without treating that as a breaking
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change. Applications may need to update their logging implementation (e.g. env-logger) to a newer
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version using log 0.4.x to avoid losing module and file information.
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### New
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* The crate is now `no_std` by default.
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* `Level` and `LevelFilter` now implement `Serialize` and `Deserialize` when the `serde` feature is
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enabled.
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* The `Record` and `Metadata` types can now be constructed by third-party code via a builder API.
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* The `logger` free function returns a reference to the logger implementation. This, along with the
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ability to construct `Record`s, makes it possible to bridge from another logging framework to
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this one without digging into the private internals of the crate. The standard `error!` `warn!`,
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etc, macros now exclusively use the public API of the crate rather than "secret" internal APIs.
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* `Log::flush` has been added to allow crates to tell the logging implementation to ensure that all
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"in flight" log events have been persisted. This can be used, for example, just before an
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application exits to ensure that asynchronous log sinks finish their work.
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### Removed
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* The `shutdown` and `shutdown_raw` functions have been removed. Supporting shutdown significantly
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complicated the implementation and imposed a performance cost on each logging operation.
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* The `log_panics` function and its associated `nightly` Cargo feature have been removed. Use the
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[log-panics](https://crates.io/crates/log-panics) instead.
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### Changed
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* The `Log` prefix has been removed from type names. For example, `LogLevelFilter` is now
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`LevelFilter`, and `LogRecord` is now `Record`.
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* The `MaxLogLevelFilter` object has been removed in favor of a `set_max_level` free function.
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* The `set_logger` free functions have been restructured. The logger is now directly passed to the
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functions rather than a closure which returns the logger. `set_logger` now takes a `&'static
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Log` and is usable in `no_std` contexts in place of the old `set_logger_raw`. `set_boxed_logger`
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is a convenience function which takes a `Box<Log>` but otherwise acts like `set_logger`. It
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requires the `std` feature.
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* The `file` and `module_path` values in `Record` no longer have the `'static` lifetime to support
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integration with other logging frameworks that don't provide a `'static` lifetime for the
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equivalent values.
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* The `file`, `line`, and `module_path` values in `Record` are now `Option`s to support integration
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with other logging frameworks that don't provide those values.
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### In the Future
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* We're looking to add support for *structured* logging - the inclusion of extra key-value pairs of
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information in a log event in addition to the normal string message. This should be able to be
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added in a backwards compatible manner to the 0.4.x series when the design is worked out.
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## Older
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Look at the [release tags] for information about older releases.
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[Unreleased]: https://github.com/rust-lang-nursery/log/compare/0.4.18...HEAD
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[0.4.20]: https://github.com/rust-lang-nursery/log/compare/0.4.19...0.4.20
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[0.4.19]: https://github.com/rust-lang-nursery/log/compare/0.4.18...0.4.19
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[0.4.18]: https://github.com/rust-lang-nursery/log/compare/0.4.17...0.4.18
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[0.4.17]: https://github.com/rust-lang-nursery/log/compare/0.4.16...0.4.17
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[0.4.16]: https://github.com/rust-lang-nursery/log/compare/0.4.15...0.4.16
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[0.4.15]: https://github.com/rust-lang-nursery/log/compare/0.4.13...0.4.15
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[0.4.14]: https://github.com/rust-lang-nursery/log/compare/0.4.13...0.4.14
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[0.4.13]: https://github.com/rust-lang-nursery/log/compare/0.4.11...0.4.13
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[0.4.12]: https://github.com/rust-lang-nursery/log/compare/0.4.11...0.4.12
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[0.4.11]: https://github.com/rust-lang-nursery/log/compare/0.4.10...0.4.11
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[0.4.10]: https://github.com/rust-lang-nursery/log/compare/0.4.9...0.4.10
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[0.4.9]: https://github.com/rust-lang-nursery/log/compare/0.4.8...0.4.9
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[0.4.8]: https://github.com/rust-lang-nursery/log/compare/0.4.7...0.4.8
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[0.4.7]: https://github.com/rust-lang-nursery/log/compare/0.4.6...0.4.7
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[0.4.6]: https://github.com/rust-lang-nursery/log/compare/0.4.5...0.4.6
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[0.4.5]: https://github.com/rust-lang-nursery/log/compare/0.4.4...0.4.5
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[0.4.4]: https://github.com/rust-lang-nursery/log/compare/0.4.3...0.4.4
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[0.4.3]: https://github.com/rust-lang-nursery/log/compare/0.4.2...0.4.3
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[0.4.2]: https://github.com/rust-lang-nursery/log/compare/0.4.1...0.4.2
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[0.4.1]: https://github.com/rust-lang-nursery/log/compare/0.4.0...0.4.1
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[0.4.0]: https://github.com/rust-lang-nursery/log/compare/0.3.8...0.4.0
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[release tags]: https://github.com/rust-lang-nursery/log/releases
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