New tagged build, limited change details
spu_iso_tool v1.1.0 was published on October 29, 2026, shortly after v1.0.0. The supplied release notes contain only links to the full changelog and do not identify specific fixes, feature additions or behavior changes between the two versions.
The release includes command-line downloads for Windows x64, universal macOS and Linux x64. It also provides graphical packages for those host platforms: a Windows x64 ZIP archive, a universal macOS ZIP archive and a Linux x86_64 AppImage. These are host-platform tools for working with PlayStation 3 data containers, not software that runs on an emulated console.
What the tool handles
spu_iso_tool encrypts and decrypts lv0ldr- and metldr-style PS3 SPU isolation containers. The command-line program provides separate encryption and decryption operations, while the Qt GUI presents dedicated panels for metldr and lv0ldr files. Both panels can be enabled for a single run, with results and errors shown in the application log.
Decryption requires the AES-128 master key. The container header provides the IV, console nonce and encrypted-key fields used by the format, while the tool verifies the CBC-MAC authentication tag before writing output. If the tag does not match, decryption exits with an error and writes no output file.
Encryption additionally requires the IV, nonce and encrypted-key values. The format combines AES-CTR encryption for the container body with a CBC-MAC authentication tag in a custom CCM-style layout. The container stores its body block count twice, followed by the nonce and key-related fields before the encrypted body.
Command-line and graphical workflows
The command-line binaries suit scripted or file-focused workflows, while the GUI provides file selections and controls for the two supported container types. Users can choose Decrypt or Encrypt at the top of the window; encryption exposes the additional IV, nonce and encrypted-key fields required for that operation.
The v1.1.0 assets let users choose between standalone command-line executables and packaged graphical applications on Windows, macOS or Linux. Because the supplied release notes do not describe functional differences from v1.0.0, no specific changes can be attributed to this version beyond the documented v1.1.0 build and its listed downloads.
