2.2.1

🐛 Fixes

• Fixed Linux build failure when used alongside ZIPFoundation (or any other zlib-based package).
  FileType's internal zlib system module was named CZlib — the same name ZIPFoundation uses for its
  own zlib wrapper. With both packages in the same Swift Package Manager dependency graph, the Linux
  toolchain rejected the duplicate module with error: redefinition of module 'CZlib' and aborted the
  build. (macOS tolerated the collision, so this only surfaced on Linux.) The module has been renamed
  to FTZlib so it can no longer clash with other packages that wrap zlib.

2.2.0

New Features

• UTI-based file type detection — On Apple platforms, you can now detect file types directly from Uniform Type Identifier strings or UTType values using the new FileType.detect(uti:) and FileType.detect(utType:) APIs. Available when UniformTypeIdentifiers can be imported (macOS 11+, iOS 14+, tvOS 14+, watchOS 7+, visionOS 1+).

Improvements

• Platform and language configuration — Package now declares minimum platform versions and explicitly opts into Swift 6 language mode via swiftLanguageModes: [.v6], removing the need for per-declaration @available annotations.

2.1.0

New Features

• Streaming manifest detection — Detect HLS (m3u), MPEG-DASH (mpd), and Microsoft Smooth Streaming (ism) manifest files. HLS detection distinguishes HLS-specific playlists from generic M3U files by checking for #EXT-X- tags.

2.0.0

Changes since 1.1.2

Breaking Changes

• Swift 6.2 required — Minimum swift-tools-version bumped to 6.2
• API renames — Several methods have been renamed (old names still available as deprecated aliases)
• Byte-reading helpers now return optionals — Bounds-checked reads return nil instead of crashing on out-of-range access

New Features

• 40+ new file formats — ACE, APK, ARJ, Avro, CPIO, DWG, FBX, ICC, J2C, JAR, JLS, JMP, LZ4, Mach-O, Parquet, PCAP, PST, RealMedia, SPSS SAV, TTC, VTT, WebP, and many more
• Expanded Office & ODF support — DOCM, DOTM, DOTX, POTM, POTX, PPSM, PPSX, PPTM, XLSM, XLTM, XLTX, ODG, OTG, OTP, OTS, OTT, VSDX
• MIME group filtering — New FileTypeMIMEGroup enum lets you limit detection to a specific MIME major type (image, audio, video, etc.) via detect(in:matching:) and related APIs
• Full-file detection — Detect file types via FileHandle and URL APIs for formats that need more than a prefix

Improvements

• Rewritten ZIP-based detection — Parses central directory and inflates compressed entries for reliable Office/ODF identification
• Proper TIFF tag detection — ARW, CR2, NEF, and DNG detected via TIFF tag parsing instead of heuristics
• Better tar validation — Checksum-based tar detection
• Improved MPEG matching — More accurate MPEG header detection with ID3 header stripping
• Sendable conformances — All public types conform to Sendable
• New query APIs — dataRequirement(for:), minimumPrefixBytes(for:), canonicalFileExtension

Fixes

• Registry files with LF line endings — .reg detection now accepts both LF and CRLF line endings
• 64-bit integer helpers — Fixed to correctly read all 8 bytes
• Corrupt MKV handling — Graceful handling of malformed MKV files

1.1.2

Improve epub detection

1.1.1

Fix mkv and webm support

1.1.0

Add: chm, 3mf, elf, jul, xcf, vcf, png, stl
Improve: xml, avif, mts, asf, ics, cfb, tar, pdf, ai

Add asar support

1.0.4

Make sure data is at least as large as the header size before attempt…