v0.4.0

hactoolnet

• Add option to completely replace the contents of a savedata file
• Add savedata trimming
• Add Partition FS builder
• Add option to load dev keys from dev.keys

LibHac

• Rename LibHac.IO namespace to LibHac.Fs
• Revamp NCA classes
• Add NCA2 support
• Add remaining functions to IFileSystem and implement missing functions in IFileSystem classes
• Finish write support for SaveDataFileSystemCore
• Add fstrim functionality to savedata
• Add DirectorySaveDataFileSystem
• Add ReadOnlyFileSystem
• Add Partition FS builder

v0.3.1

• Do system version 6.2.0 key derivation
• Fix a bug in HierarchicalRomFileTable that didn't allow files to be added to the table, and prevented the creation of RomFS files
• Fix a bug in StorageStream that would read past the end of the Storage if requested

v0.3.0

hactoolnet

• Add a RomFS builder
• Add a delta fragment reader
• Fix signature checks not working on Mono

LibHac

• Introduce an IFileSystem interface that all filesystem-like objects implement instead of them each being their own thing
  • Examples:
  • RomFsFileSystem, PartitionFileSystem and SaveDataFileSystem for accessing their respective file types
  • ConcatenationFileSystem reads and writes the system of split files the Switch uses.
  • AesXtsFileSystem reads and writes a filesystem of NAX0 files used for the external SD card
  • LocalFileSystem presents a local directory as an IFileSystem
  • LayeredFileSystem Layers multiple filesystems so their combined contents are treated as a single filesystem
• Add extensions for performing common queries or tasks on an IFileSystem
• Add support for applying delta fragment patches
• Add a class for reading and writing the dictionary data structure used in RomFS files
• Greatly improve RomFS open and access time by using RomFS' internal dictionary
• Add a RomFS builder.

v0.2.0

A single-exe version of hactoolnet has been added to the downloads for convenience over using an exe with dlls

LibHac

• Use a new IStorage interface throughout the library instead of Stream
  • This interface is more similar to the IStorage interface used by Horizon.
  • Instead of having a Stream that keeps track of the current position, IStorage accepts an offset, buffer, and length when reading or writing.
  • Unlike a Stream, an IStorage instance can be shared between multiple consumers without issue
  • Stream.AsStorage() and IStorage.AsStream() methods are provided for switching between Stream and IStorage
• Improve AES-XTS performance by ~16x
• Improve AES-CTR performance by 2x
• Add AES-XTS tests
• Add benchmarks for AES-XTS and AES-CTR
• Ability to open a decrypted IStorage of an NCA, Package1 or Package2
• Validate NCA, NPDM and package2 signatures
• Add NPDM parsing support
• Allow more disposal methods to cascade down to the base storage
• Support writing version 5 of JournalStorage used in newer save data files
• Fix a fatal save allocation table bug that would occur if the last block of the save data FS was read
• Add a build script

hactoolnet

• Add the ability to replace files in a save data file (Currently the new file must be the same size as the old file)
• Add benchmarks for AES-XTS and AES-CTR
• Change how Switch FS title info is displayed, and add an option to display info on all NCAs

v0.1.3

• Add basic save file editing. Any files already in the save file can be written to
• Check validity of save files
• Check validity of PFS files
• Check validity of SwitchFS and SD cards
• Check file hashes in HFS archives
• Partial NSO support
• When keys required to decrypt an NCA are missing, throw an exception with information about the missing keys.
• Add more sanity checks when reading an NCA.
• Read only the NCA header when first opening an NCA. This allows for reading of partial NCAs and slightly improves performance when opening an NCA.
• Fix bug in CombinationStream when reading across boundaries

hactoolnet-specific

• Add option to verify SwitchFS and SD cards
• Add option to export all keys
• Add PFS0 extraction
• Print more information about save files

Breaking changes

• The "Savefile" namespace has been renamed to "Save"
• The value passed to various functions to enable integrity checks is now an enum instead of a bool
• Probably a few other things

v0.1.2

• Savefile reading is feature-complete. Extraction should now be 100% accurate
• Add save key, BIS key and device key derivation
• Add package1 support
• Add package2 support
• Add INI1/KIP1 support
• Add the option to perform integrity checks on the fly when reading a RomFS or savefile
• Validate XCI signatures
• Validate savefile signatures and resign savefiles
• Read title key files that use pipes as delimiters

Breaking changes

• Keyfile keys were renamed to match the standard naming convention
• Setters were removed from most keys in Keyfile
• Methods like Nca.OpenSection and Savefile.ctor now have an additional parameter for enabling integrity checks

v0.1.1

• Increased AES-CTR decryption speed by 6-8x
• XCI reading
• Additional key generation
• Improved savefile support by adding Duplex FS and file allocation table handling
• ExeFS detection
• Full NACP parsing
• Partition FS creation
• Add a SharedStream class to add the ability to share a single stream between multiple consumers

hactoolnet changes:

• Extract RomFS and ExeFS from XCI
• Raw RomFS exporting from patches
• Option to load a RomFS from a file
• NSP creation from SD card files

v0.1.0

Initial release