• Two minor typo fixes in Configuration.md. (#425 @RobertJacobsonCDC)

• Support for Key-Value pairs (#362 @ellttBen)
• Add time serialization into log file (#374 @TuEmb)
• Public TimeTriggerConfig fields (#370 @Dirreke)
• Left truncation unicode support (#285 @moh-eulith)
• Zstd compression for log files (#363 @cristian-prato)
• Add onstartup trigger (#343 @Dirreke)
• Add config parsing tests (#357 @bconn98)
• Add handle retrieval after log initialization (#393 @izolyomi)

• update mock_instant and small refactor (#424 @CosminPerRam)
• remove oncecell dependency (#423 @CosminPerRam)
• MSRV to 1.75
• Update deps: (thread-id, thiserror, mock_instant, rand)
• Remove derivative crate (#408 @royb3)
• Remove where_clauses_object_safety lint allow (#377 @Dirreke)
• Refactor of time trigger logic (#347 @Dirreke)
• Readme updated (#361 @bconn98)

• Support for Key-Value pairs (#362 @ellttBen)
• Add time serialization into log file (#374 @TuEmb)
• Public TimeTriggerConfig fields (#370 @Dirreke)
• Left truncation unicode support (#285 @moh-eulith)
• Zstd compression for log files (#363 @cristian-prato)
• Add onstartup trigger (#343 @Dirreke)
• Add config parsing tests (#357 @bconn98)
• Add handle retrieval after log initialization (#393 @izolyomi)

• MSRV to 1.75
• Update deps: (thread-id, thiserror, mock_instant, rand)
• Remove derivative crate (#408 @royb3)
• Remove where_clauses_object_safety lint allow (#377 @Dirreke)
• Readme updated (#361 @bconn98)

• @izolyomi made their first contribution in https://github.com/estk/log4rs/pull/393
• @ellttBen made their first contribution in https://github.com/estk/log4rs/pull/362
• @royb3 made their first contribution in https://github.com/estk/log4rs/pull/408
• @TuEmb made their first contribution in https://github.com/estk/log4rs/pull/374
• @cristiano-prato made their first contribution in https://github.com/estk/log4rs/pull/363
• @moh-eulith made their first contribution in https://github.com/estk/log4rs/pull/285

Full Changelog: https://github.com/estk/log4rs/compare/v1.3.0...v1.4.0-rc1

See the changelog for more details.

• Add debug and release formatters
• Documentation on configuring the tool
• Code Coverage CI
• CVE Audit CI
• EditorConfig CI
• Code Owners
• NO_COLOR, CLICOLOR, CLICOLOR_FORCE controls
• Example of inline configuration with file rotation
• Time Based Trigger

• Update minimum supported rust to 1.69 for CVE-2020-26235
• Update arc-swap to 1.6
• Update log to 0.4.20
• Update humantime to 2.1
• Update serde_yaml to 0.9
• Update toml to 0.8
• Update derivative to 2.2
• Update tempfile to 3.8
• Update chrono to 0.2.23
• Moved level field before message in json format
• Legacy test moved to examples

• README typo regarding building for dev on windows
• Apply editorconfig
• Swap rustfmt configuration to imports_granularity="Crate" over deprecated merge_imports = true

See the changelog for more details.

• Update minimum supported rust to 1.56 for edition 2021

• Typemap fix: #282

See the changelog for more details.

• Removed palaver
• Update parking_lot to 0.11.
• Update minimum supported rust to 1.49 for parking_lot

• #253

• Derived Clone for Handle.

• Build warnings
• Docs typo

A performance issue was discovered with gzip and rolling logs, the background_rotation feature was added to mitigate this by spawning a background thread to perform the rotation in. Shout out to @yakov-bakhmatov for the PR!

• background_rotation feature which rotates and compresses log archives in a background thread.

• Deprecate xml feature in preparation for removal.
• Simplify and increase visibility of docs.
• Swap some synchronization primitives to use parking_lot implementations.

This is a big release as we're moving to rust 2018 edition!

• More badges in the readme.

• Use rust 2018 edition.
• Minimum rust version is 1.38.0
• Update arcswap, serde-value and serde-xml-rs.

• Deprecate len method on rolling_file.
• Windows build issue after 2018 edition.