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Change Log

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

[Unreleased]

  • doc: Fix typo in slog::Value docs (issue #335)
    • Thank you to @larswirzenius for noticing this!
  • doc: Fix "lazy continuation" in slog::Logger doc
  • Fix some internal warnings
  • nested-values: Fix CI failure caused by #[deny(unused_extern_crates)] lint
    • Switch #[deny(rust_2018_idioms)] to #[warn(...)] to avoid unnecessary build failures in the future.
    • I don't think this should affect user code.

2.8.0-beta.2 - 2024-01-05

  • Add ErrorRef wrapper to enable logging error references (PR #327)
    • The # error formatter in macros was updated to automatically select ErrorValue or ErrorRef (PR #328)

2.8.0-beta.1 - 2023-09-09

  • BIG: Updated to Rust 2018
  • Minimum Supported Rust Version is now 1.49.0
  • Add emit_bytes method (PR #290)
    • Control formatting using BytesKind enum
  • Fix support for feature="nothreads"
    • Internal refactoring to make different feature combos much easier (PR #301)
  • Switch from Travis CI to Github Actions (fixes #294)
    • rustfmt --check now run by default
    • Require clippy to succeed without warnings
    • Require all feature combinations to pass tests.
      • Make exception for nested-values feature on MSRV (1.49), because erased-serde dependency requires edition="2021" (needs 1.56)
  • Fix # format when not used as a last argument.
  • Implement Value for std::borrow::Cow
  • Fix duplicate AsRef<str> implementations, fixing support for dynamic-keys
  • Fix incorrect 'long' name for slog::Level::Warning (fixes issue #282)

2.7.0 - 2020-11-29

  • Implement Hash for Level and FilterLevel
  • Add #% for alternate display of the value part
  • Implement Eq for dynamic Keys
  • Add emit_error to Serializer, # for serializing foreign errors, and impl Value for std::io::Error
  • Add Serde (if nested-values feature is enabled) to optionally wrap a value that implements [serde::Serialize] so it's written to the log record as an object, rather than a primitive.

2.6.0 - 2019-10-28

  • Add #? for pretty-debug printing the value part

2.5.3 - ????-??-??

  • Use fully qualified call syntax for Logger::log in macros

2.5.2 - 2019-07-22

  • Restored parsing of Level and FilterLevel truncated names

2.5.1 - 2019-07-11

  • Added parsing of Level and FilterLevel short names

2.5.0 - 2019-07-11

  • Added FilterLevel::accepts
  • Added as_str, as_short_str and Display to FilterLevel

2.4.1 - 2018-10-03

  • disable support for i128/u128 types if rustc is old

2.4.0 - 2018-09-19

  • Implement Value for 128 bit integers
  • Add support 2018-style macro imports
    • WARNING: This is a breaking change that we couldn't avoid. Users using explicitly macro import (like #[macro_use(slog_o)]) must add __slog_builtin to the import list.
  • Bump miminum supported Rust version to 1.26

2.3.3 - 2018-07-20

  • impl Value for SocketAddr

2.3.2 - 2018-07-20

  • Revert broken changes:
    • Make ? and % formatters in kv! more flexible
    • Export local inner macros to help with Rust 2018 testing

2.3.0 - 2018-07-20

  • Export local inner macros to help with Rust 2018 testing
  • Stabilize Record::new
  • Make ? and % formatters in kv! more flexible

2.2.3 - 2018-03-28

  • Fix (again) problems introduced by 2.2.1

2.2.2 - 2018-03-26

  • Fix problems introduced by 2.2.1

2.2.1 - 2018-03-24

  • Add is_x_enabled() for queering (imprecise) log-level

2.2.0 - 2018-02-13

Added

  • Support for named format arguments in format messages. They will now become respectively named key-value pairs.

2.1.0 - 2017-12-10

Added

  • Support for nested-values through emit_serde, behind nested-values feature flag, disabled by default for backward compatibility. Note: Consider unstable for the time being.
  • Support for dynamic key (String vs &'static str), behind dynamic-keys feature flag, disabled by default for backward compatibility. Note: Consider unstable for the time being.

2.0.12 - 2017-09-14

Changed

  • #[allow(dead_code) on unused log statements

2.0.11 - 2017-09-13

Changed

  • Impl Value for std::path::Display

2.0.10 - 2017-09-09

Changed

  • Remove unnecessary 'static bound on FnValue

2.0.9 - 2017-08-23

Changed

  • Update README

2.0.6 - 2017-05-27

Changed

2.0.5 - 2017-05-15

Changed

  • Relicense under MPL/Apache/MIT

2.0.4 - 2017-05-05

Fixed

  • Documentation improvements

2.0.3 - 2017-05-05

Fixed

  • Documentation fixes

2.0.2 - 2017-04-12

Fixed

  • Compile time logging level filtering

2.0.0 - 2017-04-11

Changed (since v1; bigger picture)

  • Unified and simplified logging macros structure and ordering.
  • Added logging Record tags.
  • Refactored key-value pairs traits and structures and overall handling.
    • It's now possible to impl KV for MyStruct.
    • kv! can be used to create on stack key-value list.
    • KV-implementing data can appear on the key-value list directly.
  • Support chaining of OwnedKVLists. Existing Logger can be used as a Drain to allow custom handling logic for a part of the logging hierarchy.
  • Added associated Ok type to Drain.
  • Support for Drains unwind safety.
  • Refactored Record to optimize performance on async operations.
  • slog-extra has been renamed to slog-async since that's the only functionality it contained.
  • slog-stream is obsoleted and won't be used in slog v2 at all. It was a wrong abstraction. Decorators functionality was moved to slog-term.
  • slog-term provides open Decorator traits to allow multiple terminal / file writing backends.
  • slog-term default Decorators use term crate and should work correctly on all supported OSes.
  • DrainExt has been removed and utility methods moved directly to Drain
  • slog-stdlog utilizes slog-scope directly.
  • Support for "typed" Loggers to allow squeezing last drops of performance possible, at the cost of T in Logger<T>.

2.0.0-3.1 - 2017-03-25

Added

  • Support for fmt::Display values with % in kv!

2.0.0-3.0 - 2017-03-25

Changed

  • Added support for own KV and Value implementations
  • Streamlined the formatting syntax for log! and friends; BREAKING
  • Lazy values need explicit FnValue wrapper; BREKING

Added

  • kv! macro

2.0.0-2.2 - 2017-03-19

Fixes

  • Bunch of trait-related fixes

2.0.0-2.1 - 2017-03-11

Fixed

  • Require MapErr and Filter to be UnwindSafe

2.0.0-2.0 - 2017-03-11

Changed

  • Make Logger::root return "erased" version
  • Introduce Logger::root_typed for "non-erased" Logger creation

2.0.0-1.0 - 2017-02-23

Fixed

  • fmt::Debug for MutexDrainError

Changed

  • Parametrize Logger over the Drain it holds and introduce "erased" version
  • Enforcing UnwindSafe Drains for Loggers
  • Refactored key-value pairs traits and structures
  • Renamed some types
  • Support chaining of OwnedKVLists
  • Added associated Ok type to Drain
  • Refactored Record to optimize performance on async operations
  • Minimal rustc version required: 1.15.0
  • DrainExt has been removed and utility methods moved directly to Drain

Added

  • Macros to create OwnedKV and BorrowedKV
  • Logger implements Drain

1.5.0 - 2017-01-19

Changed

  • Order of key-value pairs is now strictly defined

Added

  • Logger implements Drain

Deprecated

  • Creation of OwnedKeyValueList

1.4.1 - 2017-01-19

Fixed

  • Fix an invalid syntax exposed by nightly rust change (Issue #103)

1.4.0 - 2016-12-27

Changed

  • Updated documentation

Deprecated

  • OwnedKeyValueList::id

1.3.2 - 2016-11-19

Added

  • slog_o as an alternative name for o

1.3.1 - 2016-11-19

Fixed

  • Cargo publishing mistake.

1.3.0 - 2016-10-31

Changed

  • BREAKING: Removed default Send+Sync from Drain

1.2.1 - 2016-10-27

Added

  • OwnedKeyValueList::id for owned key value unique identification

1.2.0 - 2016-10-21

Changed

  • BREAKING: Serializer takes key : &'static str now

Fixed

  • Corner cases in info!(...) and other macros

1.1.0 - 2016-10-17

Changed

  • BREAKING: Rewrite handling of owned values.

1.0.1

Fixed

  • use std in o!

Added

  • Implement fmt::Debug for Logger

1.0.0 - 2016-09-21

First stable release.