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CHANGELOG.md

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Version 3.3.0

  • Recompute CoW size estimate when replacing dynamic partitions (Issue #306, PR #307)
    • Fixes out of space error when flashing a patched OTA that uses --replace to replace a dynamic partition (eg. system) with a larger or more incompressible image
  • Add avbroot payload info subcommand for inspecting payload.bin headers (PR #309)

Version 3.2.3

  • Add prebuilt binary for Android (aarch64) (PR #304)

Version 3.2.2

  • Add new --recompute-size option to avbroot avb pack to automatically recompute the image size for resizable images (Discussion #294, PR #296)
  • Add new --output-info option to avbroot avb pack to write a new avb.toml file containing computed values (PR #297)
  • Add support for upcoming Magisk Canary 27003 (Issue #301, PR #268)

Version 3.2.1

  • Increase hash tree and FEC size limits to accommodate partition images up to 8 GiB (Issue #291, PR #293)

Version 3.2.0

  • Fix potential infinite loop when interrupting avbroot at the right moment to a bug in the bzip2-rs library (Issue #285, PR #287)
  • Update all dependencies and fix new clippy lints (PR #288)
  • Add support for adding the custom AVB public key to the list of trusted keys for DSU (booting signed GSIs) (Discussion #286, PR #289)

Version 3.1.3

Version 3.1.2

  • Use fastboot flashall for initial setup to avoid needing to manually flash every partition (PR #253)
  • Remove binary test files in the git repo and generate them at runtime (Issue #265, PR #276)
  • Fix portions of a couple error messages being incorrectly quoted (PR #277)

Version 3.1.1

  • Cache salted SHA-256 contexts for a small performance improvement (PR #257)
  • Fix loading certificates that have extra text outside of the marker lines (PR #261)

Version 3.1.0

Behind-the-scenes changes:

  • Switch from xz2 to liblzma (maintained fork of xz2) (PR #247)
  • Update all dependencies (PR #256)

Version 3.0.0

Happy New Year! This release brings two major changes:

  1. The OTA certificates (otacerts.zip) in the system partition are now patched. The clearotacerts module from avbroot (or the customotacerts module from Custota) are no longer needed and can be safely uninstalled.

    This makes it possible to use Pixel's new Repair Mode safely. To do so, follow the instructions in the documentation here.

  2. Autodetection for boot partitions is now significantly more reliable. For KernelSU users or folks who have more obscure devices, the --boot-partition option is no longer required (and is now ignored).

Full list of changes:

  • Add support for AVB 2.0 format 1.3.0 (for Android 15) (PR #210)
  • Add new avbroot key decode-avb command for converting AVB-encoded public keys to the standard PKCS8-encoded format (PR #219)
  • Improve autodetection of boot images (Issue #218, PR #221, PR #237)
  • Build precompiled executables as statically linked executables (Issue #222, PR #224, PR #227)
  • Limit critical partition check to bootloader-verified partitions (Issue #223, PR #226)
  • Improve patching performance by spliiting new partition images into chunks and compressing them in parallel (PR #228)
  • Also verify whole-partition hashes when running avbroot ota verify (PR #229)
  • Add support for patching otacerts.zip on the system partition (Issue #225, PR #240, PR #244)
  • Document how to use Repair Mode safely (Issue #216, PR #243)

Behind-the-scenes changes:

  • Fix lint warnings introduced in Rust 1.74.0 (PR #211)
  • Temporarily silence RUSTSEC-2023-0071 warning in cargo-deny (PR #214)
  • Add support for partially updating FEC data (PR #230, PR #231, PR #234)
  • Fix hash tree calculation for images smaller than one block (PR #232)
  • Refactor hash tree code and add tests, CLI commands, and support for partial updates (PR #233)
  • Generate mock OTAs to use for end-to-end tests (PR #241)
  • Update all dependencies (PR #245)

Version 2.3.3

Version 2.3.2

  • Improve error messages when using --replace with an image that has the wrong AVB descriptor type (Issue #201, PR #202)
  • Automatically update legacy dm= kernel command line descriptor when packing AVB images (Issue #203, PR #205)
  • Automatically promote insecure hash algorithms (eg. sha1) to sha256 when packing AVB images (Issue #203, PR #206)

Version 2.3.1

  • Mark Magisk 264xx as supported (PR #199)

Version 2.3.0

  • Fix missing --help text for avbroot avb unpack's --ignore-invalid option (PR #183)
  • Group avbroot ota patch --help output into more readable sections (PR #184)
  • Add more checks to ensure that the OTA has a secure AVB setup (PR #188)
    • OTAs with blatantly insecure or missing AVB configuration are now more likely to be rejected by avbroot to avoid providing a false sense of security.
  • Allow avbroot avb verify and avbroot ota verify to work for dm-verity partitions that use insecure SHA1 hashes (PR #190)
  • Add support for legacy Android 11 OTAs (Discussion #195, PR #196)

Behind-the-scenes changes:

  • Bump maximum payload manifest size to 4 MiB (PR #182)
  • Rework file handle reopen functionality to use traits instead of callbacks (PR #189)
  • Don't set signature algorithm field for indirectly signed boot images (PR #191)
  • Update dependencies (PR #197)

Version 2.2.0

It's Android 14 release day! All versions of avbroot, including the old Python version, are compatible with Android 14 OTAs.

Changes:

  • Add new unpack and pack commands for cpio archives (ramdisks) (PR #173, PR #178)
  • Rename header.toml to boot.toml for the boot image unpack and pack commands (PR #175)
    • Also changes the file format a bit to make it more readable.

Behind-the-scenes changes:

  • Add streaming CPIO reader and writer (PR #172)
  • Update dependencies (PR #174, PR #181)
  • Switch to prost for protobuf encoding/decoding (PR #176)

Version 2.1.1

This release is all about hardening avbroot against untrusted (or corrupted) inputs. While all of avbroot's parsers are memory-safe, it's still possible for crashes to occur due to logic issues like allocating too much memory or dividing by zero. With this release, most of these potential issues have been fixed and fuzz tests have been added to help find more of these situations.

On the filesystem side of things, it is no longer possible for a nefarious program to cause avbroot to write to unintended locations by eg. swapping out an output directory or temp directory with a symlink while it is running.

Behind-the-scenes changes:

Version 2.1.0

  • Add support for dm-verify FEC (forward error correction) (Issue #145, PR #146)
    • ota verify and avb verify will now check the FEC data.
  • Print status and warning messages to stderr (PR #149)
  • Add new avb unpack, avb pack, and avb repack commands for AVB images (Issue #144, Issue #148, PR #152)
    • avb verify now optionally accepts --repair to fix corrupted dm-verity images.

Behind-the-scenes changes:

  • Remove unnecessary use of Arc (PR #147)
  • Use bstr crate to escape mostly UTF-8 binary data (PR #150)
  • Improve error fields and error contest (PR #153)

Version 2.0.3

  • Upgrade xz version in precompiled binaries (Issue #138, PR #139)
    • This fixes the ota extract and ota verify commands in some multithreaded situations.
  • Add --version option to print out avbroot's version (Issue #138, PR #140)

Version 2.0.2

  • Fix data_offset being set for payload operations that don't need it (PR #136)
    • This fixes patched stock OnePlus images from being rejected when flashing.

Behind-the-scenes changes:

  • Move full OTA check to CLI functions to allow library functions to parse delta OTAs (PR #135)
  • Remove unnecessary use of anyhow macro (PR #137)

Version 2.0.1

  • Add support for Magisk 263xx (PR #132)

Version 2.0.0

  • Initial Rust release. The old Python implementation can be found in the python branch. (PR #130)