# bat v0.21.0

- Product: bat (https://whatsnew.fyi/product/bat)
- Vendor: David Peter
- Date: 2022-05-12
- Version: v0.21.0
- Original notes: https://github.com/sharkdp/bat/releases/tag/v0.21.0
- Permalink: https://whatsnew.fyi/product/bat/releases/v0.21.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Correctly render tab stops in --show-all
- **added** — Add a --style=default option and make it the default, which is less verbose than full
- **added** — Enable BusyBox less as pager
- **changed** — File extensions are now matched case-insensitively
- **security** — Bump regex dependency from 1.5.4 to 1.5.5 to fix CVE-2022-24713
- **fixed** — bat no longer crashes when encountering files that reference missing syntaxes
- **changed** — Skip syntax highlighting on long lines (> 16384 chars) to improve performance
- **changed** — Vastly improve startup time by lazy-loading syntaxes via syntect 5.0.0, making bat display small files approximately 75% faster
- **changed** — Include info about custom assets in --diagnostics if used
- **added** — Map clang-format config file (.clang-format) to YAML syntax
- **changed** — Improve log syntax handling of escape characters in double quoted strings
- **added** — Associate /var/spool/mail/* and /var/mail/* with the Email syntax
- **added** — Add cmd-help syntax to scope --help messages
- **changed** — Slightly adjust Zig syntax
- **added** — Associate .inf files with the INI syntax
- **added** — Allow configuration of show_nonprintable with PrettyPrinter
- **changed** — Change the binary format of syntaxes.bin due to syntaxes now being lazy-loaded via syntect 5.0.0
- **changed** — Mark bat::error::Error enum as #[non_exhaustive] to allow adding new variants without future semver breakage
- **changed** — Change Error::SyntectError(syntect::LoadingError) to Error::SyntectError(syntect::Error)
- **added** — Add Error::SyntectLoadingError(syntect::LoadingError) enum variant

##### Features

- Correctly render tab stops in `--show-all`, see #2038 (@Synthetica9)
- Add a `--style=default` option and make it the default. It is less verbose than `full`, see #2061 (@IsaacHorvath)
- Enable BusyBox `less` as pager, see #2162 (@nfisher1226)
- File extensions are now matched case-insensitively. See #1854, #2181 (@Enselic)

##### Bugfixes

- Bump `regex` dependency from 1.5.4 to 1.5.5 to fix [CVE-2022-24713](https://blog.rust-lang.org/2022/03/08/cve-2022-24713.html), see #2145, #2139 (@Enselic)
- `bat` no longer crashes when encountering files that references missing syntaxes. See #915, #2181 (@Enselic)

##### Performance

- Skip syntax highlighting on long lines (> 16384 chars) to help improve performance. See #2165 (@keith-hall)
- Vastly improve startup time by lazy-loading syntaxes via syntect 5.0.0. This makes bat display small files ~75% faster than before. See #951, #2181 (@Enselic)

##### Other

- Include info about custom assets in `--diagnostics` if used. See #2107, #2144 (@Enselic)

##### Syntaxes

- Mapped clang-format config file (.clang-format) to YAML syntax (@TruncatedDinosour)
- log syntax: improved handling of escape characters in double quoted strings. See #2123 (@keith-hall)
- Associate `/var/spool/mail/*` and `/var/mail/*` with the `Email` syntax. See #2156 (@cyqsimon)
- Added cmd-help syntax to scope --help messages. See #2148 (@victor-gp)
- Slightly adjust Zig syntax. See #2136 (@Enselic)
- Associate `.inf` files with the `INI` syntax. See #2190 (@Enselic)

##### `bat` as a library

- Allow configuration of `show_nonprintable` with `PrettyPrinter`, see #2142
- The binary format of syntaxes.bin has been changed due to syntaxes now being lazy-loaded via syntect 5.0.0. See #2181 (@Enselic)
- Mark `bat::error::Error` enum as `#[non_exhaustive]` to allow adding new variants without future semver breakage. See #2181 (@Enselic)
- Change `Error::SyntectError(syntect::LoadingError)` to `Error::SyntectError(syntect::Error)`. See #2181 (@Enselic)
- Add `Error::SyntectLoadingError(syntect::LoadingError)` enum variant. See #2181 (@Enselic)