Sourced from sharkdp/bat's releases.
Please note that this only shows the release notes for the latest release.

v0.25.0

Features

• Set terminal title to file names when Paging is not Paging::Never 2783 setting terminal title sharkdp/bat#2807 (@Oliver-Looney)
• bat --squeeze-blank/bat -s will now squeeze consecutive empty lines, see Add -s/--squeeze and --squeeze-limit. sharkdp/bat#1441 (@eth-p) and Add -s/--squeeze and --squeeze-limit (based on #1441). sharkdp/bat#2665 (@einfachIrgendwer0815)
• bat --squeeze-limit to set the maximum number of empty consecutive when using --squeeze-blank, see Add -s/--squeeze and --squeeze-limit. sharkdp/bat#1441 (@eth-p) and Add -s/--squeeze and --squeeze-limit (based on #1441). sharkdp/bat#2665 (@einfachIrgendwer0815)
• PrettyPrinter::squeeze_empty_lines to support line squeezing for bat as a library, see Add -s/--squeeze and --squeeze-limit. sharkdp/bat#1441 (@eth-p) and Add -s/--squeeze and --squeeze-limit (based on #1441). sharkdp/bat#2665 (@einfachIrgendwer0815)
• Syntax highlighting for JavaScript files that start with #!/usr/bin/env bun [JavaScript] Support bun in shebang for syntax highlighting sharkdp/bat#2913 (@sharunkumar)
• bat --strip-ansi={never,always,auto} to remove ANSI escape sequences from bat's input, see Add option to remove ANSI escape sequences from bat's input. sharkdp/bat#2999 (@eth-p)
• Add or remove individual style components without replacing all styles Merge --styles from different places using +/- sharkdp/bat#2929 (@eth-p)
• Automatically choose theme based on the terminal's color scheme, see Choose Theme Based on The Terminal's Color Scheme sharkdp/bat#2896 (@bash)
• Add option --binary=as-text for printing binary content, see issue Add Flag to Avoid Treating NUL Separated Input as Binary sharkdp/bat#2974 and PR Allow printing binary content by treating it the same as text sharkdp/bat#2976 (@einfachIrgendwer0815)
• Make shell completions available via --completion <shell>, see issue output shell completion script by bat --completion <shell> command sharkdp/bat#2057 and PR Add --completion <SHELL> to provide shell completions sharkdp/bat#3126 (@einfachIrgendwer0815)
• Syntax highlighting for puppet code blocks within Markdown files, see Added patch for puppet syntax highlighting in Markdown code snippets sharkdp/bat#3152 (@liliwilson)

Bugfixes

• Fix long file name wrapping in header, see fix: Wrap file name in header sharkdp/bat#2835 (@FilipRazek)
• Fix NO_COLOR support, see fix: display color when NO_COLOR is an empty string sharkdp/bat#2767 (@acuteenvy)
• Fix handling of inputs with OSC ANSI escape sequences, see Erratic output when OSC8 sequences are present sharkdp/bat#2541 and Treat OSC ANSI Sequences as Invisible Text & Add OSC 8 Support sharkdp/bat#2544 (@eth-p)
• Fix handling of inputs with combined ANSI color and attribute sequences, see Issue handling text with escape sequences already embedded sharkdp/bat#2185 and Fix incorrect categorization of ANSI SGR sequences. sharkdp/bat#2856 (@eth-p)
• Fix panel width when line 10000 wraps, see Fix off-by-one error in line number continuation sharkdp/bat#2854 (@eth-p)
• Fix compile issue of time dependency caused by standard library regression Bump time to 0.3.36 (fixes #3043) sharkdp/bat#3045 (@cyqsimon)
• Fix override behavior of --plain and --paging, see issue --pager=never does not respect --plain sharkdp/bat#2731 and PR Fix override of --plain and --paging sharkdp/bat#3108 (@einfachIrgendwer0815)
• Fix bugs in $LESSOPEN support, see Rework lessopen implementation to use execute crate instead of run_script sharkdp/bat#2805 (@Anomalocaridid)

Other

• Upgrade to Rust 2021 edition Bump edition to 2021 sharkdp/bat#2748 (@cyqsimon)
• Refactor and cleanup build script Build script refactor sharkdp/bat#2756 (@cyqsimon)
• Checks changelog has been written to for PRs in CI CI: add changelog check sharkdp/bat#2766 (@cyqsimon)
  • Use GitHub API to get correct PR submitter Use GitHub API to get correct PR submitter sharkdp/bat#2791 (@cyqsimon)
• Minor benchmark script improvements Minor benchmark script improvements sharkdp/bat#2768 (@cyqsimon)
• Update Arch Linux package URL in README files Update Arch Linux package URL in README files sharkdp/bat#2779 (@brunobell)
• Update and improve zsh completion, see Improvements and fixes to zsh completion sharkdp/bat#2772 (@okapia)
• More extensible syntax mapping mechanism More extensible syntax mapping mechanism sharkdp/bat#2755 (@cyqsimon)
• Use proper Architecture for Debian packages built for musl, see Use proper Architecture for Debian packages built for musl sharkdp/bat#2811 (@Enselic)
• Pull in fix for unsafe-libyaml security advisory, see Pull in fix for unsafe-libyaml security advisory sharkdp/bat#2812 (@dtolnay)
• Update git-version dependency to use Syn v2, see Eliminate dependency on syn v1 by updating git-version sharkdp/bat#2816 (@dtolnay)
• Update git2 dependency to v0.18.2, see Update git2 dependency sharkdp/bat#2852 (@eth-p)
• Improve performance when color output disabled, see Bat is slow with --color=never --decorations=always on some files sharkdp/bat#2397 and Skip syntax parsing when color is not being output. sharkdp/bat#2857 (@eth-p)
• Relax syntax mapping rule restrictions to allow brace expansion Relax syntax mapping rule restrictions to allow brace expansion sharkdp/bat#2865 (@cyqsimon)
• Apply clippy fixes Apply clippy fixes sharkdp/bat#2864 (@cyqsimon)
• Faster startup by offloading glob matcher building to a worker thread Faster startup by offloading glob matcher building to a worker thread sharkdp/bat#2868 (@cyqsimon)
• Display which theme is the default one in basic output (no colors), see display which theme is the default one in basic output sharkdp/bat#2937 (@sblondon)
• Display which theme is the default one in colored output, see display which theme is the default one in colored output sharkdp/bat#2838 (@sblondon)
• Add aarch64-apple-darwin ("Apple Silicon") binary tarballs to releases, see Add support for Apple Silicon sharkdp/bat#2967 (@someposer)
• Update the Lisp syntax, see Patch the lisp syntax sharkdp/bat#2970 (@ccqpein)
• Use bat's ANSI iterator during tab expansion, see Update bat's tab expansion preprocessor to use bat's ANSI escape sequence iterator. sharkdp/bat#2998 (@eth-p)
• Support 'statically linked binary' for aarch64 in 'Release' page, see Support 'statically linked binary' for aarch64 in 'Release' page sharkdp/bat#2992 (@tzq0301)
• Update options in shell completions and the man page of bat, see Update the man page of bat (assets/manual/bat.1.in) sharkdp/bat#2995 (@akinomyoga)
• Update nix dev-dependency to v0.29.0, see Bump nix from 0.26.4 to 0.29 sharkdp/bat#3112 (@decathorpe)
• Bump MSRV to 1.74, see [CI] fix cargo audit failing to run successfully sharkdp/bat#3154 (@keith-hall)
• Update clircle dependency to remove winapi transitive dependency, see Bump clircle to 0.6.1 sharkdp/bat#3113 (@niklasmohrin)

Syntaxes

• cmd-help: scope subcommands followed by other terms, and other misc improvements, see Bump cmd-help syntax to b150d84 sharkdp/bat#2819 (@victor-gp)
• Upgrade JQ syntax, see Bump assets/syntaxes/02_Extra/SublimeJQ from 6870582 to b7e53e5 sharkdp/bat#2820 (@dependabot[bot])
• Add syntax mapping for quadman quadlets Add syntax mapping for podman quadlets sharkdp/bat#2866 (@cyqsimon)
• Map containers .conf files to TOML syntax Map containers .conf files to TOML syntax sharkdp/bat#2867 (@cyqsimon)
• Associate .xsh files with xonsh syntax that is Python, see Added xonsh shell support sharkdp/bat#2840 (@anki-code)
• Associate JSON with Comments .jsonc with json syntax, see Added JSONC and aws credentials to the syntax mappings sharkdp/bat#2795 (@mxaddict)
• Associate JSON-LD .jsonld files with json syntax, see Associate JSON-LD .jsonld files with json syntax sharkdp/bat#3037 (@vorburger)
• Associate .textproto files with ProtoBuf syntax, see Update the Protobuf sobmodule in order to add .textproto support sharkdp/bat#3038 (@vorburger)
• Associate GeoJSON .geojson files with json syntax, see Associate GeoJSON .geojson files with json syntax (fixes #3083) sharkdp/bat#3084 (@mvaaltola)
• Associate .aws/{config,credentials}, see Added JSONC and aws credentials to the syntax mappings sharkdp/bat#2795 (@mxaddict)
• Associate Wireguard config /etc/wireguard/*.conf, see Add syntax mapping for Wireguard config sharkdp/bat#2874 (@cyqsimon)
• Add support for CFML, see add CFML syntax sharkdp/bat#3031 (@brenton-at-pieces)
• Map *.mkd files to Markdown syntax, see issue mkd extension not displayed as Markdown sharkdp/bat#3060 and PR Map *.mkd files to Markdown syntax sharkdp/bat#3061 (@einfachIrgendwer0815)
• Add syntax mapping for CITATION.cff, see Add syntax mapping for CITATION.cff sharkdp/bat#3103 (@Ugzuzg)
• Add syntax mapping for kubernetes config files Add syntax mapping for kubernetes config files sharkdp/bat#3049 (@cyqsimon)
• Adds support for pipe delimiter for CSV Adding pipe delimeter support for csv files sharkdp/bat#3115 (@pratik-m)
• Add syntax mapping for /etc/pacman.conf Add syntax mapping for /etc/pacman.conf sharkdp/bat#2961 (@cyqsimon)
• Associate uv.lock with TOML syntax, see Use TOML syntax highlighting for uv.lock sharkdp/bat#3132 (@fepegar)

Themes

• Patched/improved themes for better Manpage syntax highlighting support, see Patch themes for better manpage syntax highlighting sharkdp/bat#2994 (@keith-hall).

bat as a library

• Changes to syntax_mapping::SyntaxMapping More extensible syntax mapping mechanism sharkdp/bat#2755 (@cyqsimon)
  • SyntaxMapping::get_syntax_for is now correctly public
  • [BREAKING] SyntaxMapping::{empty,builtin} are removed; use SyntaxMapping::new instead
  • [BREAKING] SyntaxMapping::mappings is replaced by SyntaxMapping::{builtin,custom,all}_mappings
• Make Controller::run_with_error_handler's error handler FnMut, see Make Controller::run_with_error_handler's error handler FnMut sharkdp/bat#2831 (@rhysd)
• Improve compile time by 20%, see Eliminate dependency on serde's "derive" feature sharkdp/bat#2815 (@dtolnay)
• Add theme::theme for choosing an appropriate theme based on the
  terminal's color scheme, see Choose Theme Based on The Terminal's Color Scheme sharkdp/bat#2896 (@bash)
  • [BREAKING] Remove HighlightingAssets::default_theme. Use theme::default_theme instead.
• Add PrettyPrinter::print_with_writer for custom output destinations, see Add print_with_writer to PrettyPrint sharkdp/bat#3070 (@kojix2)