v0.3.0

0.3.0 (2026-07-29)

Features

• pack: add LZFSE and LZMA DMG compression, default to LZFSE (217d6a7)

---

Binaries are pure Go and require no runtime dependencies.

Verify a download against the signed checksum file:

cosign verify-blob \
  --bundle apfs_0.3.0_checksums.txt.sigstore.json \
  --certificate-identity-regexp 'https://github.com/deploymenttheory/go-apfs-v2/.*' \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com \
  apfs_0.3.0_checksums.txt

shasum -a 256 -c apfs_0.3.0_checksums.txt --ignore-missing

v0.2.0

0.2.0 (2026-07-28)

Features

• apfs: unlock FileVault volumes with a supplied password (9b4fa0e)
• apfswrite: carry decmpfs compression through unchanged (41b0ce9)
• apfswrite: write a volume group as the system/data pair it is (f4de4d1)
• apfswrite: write containers holding several volumes (a21e9d1)
• apfswrite: write several snapshots per volume (8efce8d)
• carry resource forks in the HFS+ writer (d96961b)
• emit case-insensitive HFS+ volumes (e70d8ea)
• hfsplus: carry decmpfs compression through unchanged (f62656c)
• hfsplus: carry resource forks (d2b7cca)
• hfsplus: emit case-insensitive volumes (c095f6c)
• hfsplus: read extended attributes (bc53ba9)
• hfsplus: read transparently-compressed files (9eb2fdd)
• hfsplus: represent hard links (1898792)
• hfsplus: write the attributes file (f17be7b)
• pack: preserve transparent compression when writing APFS (479ad9f)
• read extended attributes on HFS+ (df7bbf7)
• read transparently-compressed files on HFS+, and repair fixture generation (a73981f)
• represent hard links in the HFS+ writer (7994803)
• support HFS+ in mount and inspect (622cfae)
• write the HFS+ attributes file (b03ce1b)

Bug Fixes

• acceptance: compile the hard-link assertions on every platform (aed4ca2)
• apfswrite: number a grouped system volume's inodes above the mark (195235d)
• apfswrite: write only 4096-byte blocks (2480a2d)
• compile the hard-link assertions on every platform (2e9e2aa)
• correct the HFS+ capability docs and restrict the APFS writer to 4096-byte blocks (a4aff56)
• declare a wrapped bare image as a partition image, so created DMGs mount (fa2d4d5)
• disk: declare a wrapped bare image as a partition image (364458e)
• disk: make the ADC and Apple Partition Map claims true (132d21d)
• hfsplus: normalize names so macOS can find them (ea5d45e)
• hfsplus: write the hard-link chain macOS requires (a0e0dc1)
• normalize HFS+ names so macOS can find them (50455c6)

---

Binaries are pure Go and require no runtime dependencies.

Verify a download against the signed checksum file:

cosign verify-blob \
  --bundle apfs_0.2.0_checksums.txt.sigstore.json \
  --certificate-identity-regexp 'https://github.com/deploymenttheory/go-apfs-v2/.*' \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com \
  apfs_0.2.0_checksums.txt

shasum -a 256 -c apfs_0.2.0_checksums.txt --ignore-missing

v0.1.0

What's Changed

• build(deps): bump golang.org/x/crypto from 0.31.0 to 0.45.0 by @dependabot[bot] in #9
• feat: finish up by @ShocOne in #18
• feat: cli redesign + hsf+ support by @ShocOne in #19
• feat(disk): UDIF/DMG writer and apfs pack for lossless repack by @ShocOne in #20
• feat(hfsplus): HFS+ filesystem writer and 'apfs pack ' directory packing by @ShocOne in #21
• feat: apfs write by @ShocOne in #22
• docs: rebaseline README and CLI help for the full command set by @ShocOne in #23
• feat: apfs file write by @ShocOne in #24
• Bump actions/checkout from 4.2.2 to 5.0.0 by @dependabot[bot] in #1
• Bump googleapis/release-please-action from 4.2.0 to 4.4.0 by @dependabot[bot] in #2
• Bump actions/dependency-review-action from 4.5.0 to 4.8.1 by @dependabot[bot] in #3
• Bump super-linter/super-linter from 7.3.0 to 8.2.1 by @dependabot[bot] in #4
• Bump step-security/harden-runner from 2.11.0 to 2.13.1 by @dependabot[bot] in #5
• feat: Relicense pkg/apfswrite to MIT via clean-room reimplementation by @ShocOne in #25
• feat: apfs snapshots by @ShocOne in #26
• feat: refactor terms to apple terminology by @ShocOne in #27
• feat: reproducible (byte-identical) output from every write command by @ShocOne in #28
• feat: decode volume roles and surface volume groups by @ShocOne in #29
• fix: implement decmpfs LZFSE and repair inline decmpfs by @ShocOne in #39
• fix: skip special files in pack instead of hanging on them by @ShocOne in #40
• feat: report write fidelity, add --strict, and implement extract --xattrs by @ShocOne in #41
• feat: let the DMG encoder read its source lazily by @ShocOne in #42
• feat: build images into a scratch file rather than memory by @ShocOne in #43
• feat: check for free space before building an image by @ShocOne in #44
• feat: repack a DMG without materialising it by @ShocOne in #45
• feat: stop the writers assembling images and files in memory by @ShocOne in #46
• feat: carry extended attributes in the APFS writer by @ShocOne in #47
• feat: store large extended attributes in data streams by @ShocOne in #48
• feat: represent hard links in the APFS writer by @ShocOne in #49

New Contributors

• @dependabot[bot] made their first contribution in #9
• @ShocOne made their first contribution in #18

Full Changelog: https://github.com/deploymenttheory/go-apfs-v2/commits/v0.1.0