v0.0.6

🚀 Features

• ansi: add the ansi module: strip, contains, visible_len, Style, Color
• bytes: add the bytes module: read_u16/32/64, find, xor, constant_time_eq, format_size, parse_size
• ci: add the ci module: Provider, detect, is_ci, is_pull_request, Status, overall, render_report
• color: add the color module: Rgb, Hsl, ParseColorError, mix, contrast_ratio, best_text_color
• commit: add the commit module: Commit, Bump, ParseCommitError, bump_for, is_valid, emoji_for
• date: add the date module: Date, Weekday, DateError, is_leap_year, days_in_month
• fs: add the fs module: write_atomic, read_to_string_opt, walk, normalize, is_within
• function: add the function module: compose, pipe, Memoize, retry, backoff, TokenBucket
• future: add the future module: block_on, now_or_never, yield_now, join, join_all
• license: add the license module: lookup, normalize, Expression, Category, LicenseInfo, header
• markdown: add the markdown module: escape, link, inline_code, code_block, blockquote, table, heading_slug
• secret: add the secret module: Secret, redact, mask, detect, scan, TokenKind
• set: add the set module: union_all, intersection_all, toggle, to_sorted_vec, jaccard, subsets
• url: add the url module: Url, percent_encode/decode, parse_query, build_query, join_path
• version: add the version module: Version, VersionReq, ParseVersionError, compare, satisfies

🔧 Miscellaneous

• coherency: exclude two mutants no test can catch
• coherency: tell typos about the test data that looks like typos

♻️ Refactoring

• bytes: replace hand-rolled index loops so mutants cannot hang

📝 Documentation

• agents: list the new modules in llms.txt
• list the new modules in the README

✅ Tests

• bytes: cover multi-digit fractions and drop the redundant unit guards
• commit: cover type characters, ordinary footers and 400-year cycles
• secret: fix a property that did not hold

👷 CI/CD

• skip the PR mutation run when the diff is too big for the job
• cap the weekly feature powerset at depth 3
• stop the feature powerset check from growing unbounded on every PR

v0.0.5

🚀 Features

• iter: add the iter module: chunk, min_max and first_duplicate
• validate: add the validate module: is_valid_email, is_uuid and is_slug

📝 Documentation

• agents: list the iter and validate modules in llms.txt
• add the Scorecard badge and the iter/validate modules to the README
• add # Arguments and # Returns to every helper's rustdoc

✅ Tests

• iter: exclude two equivalent mutants in min_max

v0.0.4

🚀 Features

• duration: add the duration module: parse, format and ParseDurationError
• map: add the map module: pick, omit and map_values

📝 Documentation

• agents: list the duration and map modules in llms.txt

v0.0.3

🚀 Features

• array: add key_by, duplicates and interleave
• number: add the number module: lerp, round_to, mean, median, percentage, gcd, lcm
• string: add title_case, constant_case, squish, indent and unescape_html

📝 Documentation

• agents: list the new helpers in llms.txt
• add the Codecov badge to the README
• rewrite the README and point the homepage to helpers4.dev/rust
• add the pre-1.0 notice to the README and fix its install section

✅ Tests

• number: cover lcm(0, 0)

👷 CI/CD

• add the OpenSSF Scorecard workflow
• notify the website when a release is published

v0.0.2

🚀 Features

• cache: add ExpiringMap
• http: add bearer_token
• net: add is_valid_hostname and HostnameError
• net: add is_public_ip
• time: add unix_now_millis
• time: add unix_now and ClockError

🐛 Bug Fixes

• net: reject hostnames whose last label is a number

🔧 Miscellaneous

• ignore the VS Code local history

♻️ Refactoring

• hex: name the hex parameter hex instead of s
• net: make the CIDR prefix precondition explicit

📝 Documentation

• net: spell out what is_public_ip guarantees and what it cannot know
• document the ExpiringMap capacity bound and the unix_now_millis saturation

✅ Tests

• cache: check that a non-empty map is not empty
• benchmark is_public_ip and ExpiringMap

👷 CI/CD

• exclude the equivalent ExpiringMap sweep-guard mutant
• publish with trusted publishing only

v0.0.1

🚀 Features

• array: add cartesian_product
• array: add group_by
• array: add count_by
• array: add equals_unordered
• array: add intersects
• array: add symmetric_difference
• array: add intersection
• array: add difference
• array: add unique_by
• array: add unique
• env: add remove
• env: add set and InvalidKeyError
• env: add get
• env: add parse
• hex: add decode_array
• hex: add decode_to_slice
• hex: add decode and DecodeError
• hex: add encode_upper
• hex: add encode
• string: add escape_html
• string: add dedent
• string: add truncate
• string: add slugify
• string: add kebab_case
• string: add snake_case
• string: add pascal_case
• string: add camel_case
• scaffold crate with string::capitalize

🔧 Miscellaneous

• drop the redundant helpers4 scope

♻️ Refactoring

• string: colocate tests, property tests and benches with each helper
• adopt a strict lint table

📝 Documentation

• agents: describe the CI checks and the reusable workflows
• agents: note that coverage counts each generic instantiation
• string: drop the Since marker in favor of a computed api-since.json
• string: list the string helpers in llms.txt

✅ Tests

• array: benchmark unique, difference, group_by and equals_unordered
• hex: benchmark encode and decode
• string: benchmark the case, slug, escape and dedent helpers

📦 Build

• publish only sources, benchmarks and entry-point docs

👷 CI/CD

• confirm suspected benchmark regressions before reporting them
• say so when a diff generates no mutant
• raise the benchmark noise threshold to avoid false regressions
• add benchmark and mutation-testing jobs
• configure cargo-mutants
• run the minimal-versions job on nightly despite rust-toolchain.toml
• split CI into reusable jobs with PR and main validation