Release notes

Amiga Imager v0.90

A major step forward for build reliability, with a new native disk engine, safer real-hardware booting, native LHA extraction, and better day-to-day feedback while builds run.

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  • Beta release
  • Native disk engine by default
  • Build 260711
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Beta - macOS 14+, Apple Silicon and Intel. Current downloadable build: 260711.

What stands out in v0.90

v0.90 is a deeper release than a normal point update. The biggest change is a new native Swift disk engine, AmigaDiskKit, which now handles the core RDB and FFS image work that previously depended on hst-imager. For users, that means safer image creation, more predictable results, and a clearer foundation for future builds.

  • Native disk engine by default - new installs now use the native Swift engine for the core disk-image path, replacing the old external binary for the most important RDB and FFS work.
  • Better real-hardware boot reliability - several low-level FFS and root-block issues were fixed, including bugs that could lead to Not a DOS disk on real Amiga hardware.
  • Protection against bad hst-imager output - the build scripts now catch a known hst-imager boot-block issue and stop with a clear error instead of silently producing a broken image.
  • Native LHA extraction - Aminet package extraction now runs through a native Swift LHA path instead of an external shell tool, which makes package installs cleaner and more self-contained.
  • Better build feedback - the app now posts a macOS notification when a build finishes, and build logs stream live to the log file instead of only appearing at the end.

Platform and package improvements

This release also broadens what the app can stage automatically. New optional packages include Solas, LumiWeather, LumiPass, and LumiReg. AmiSSL is updated to 5.27, and the LumiFTP 1.1 package mapping has been fixed so the current archive is resolved correctly.

On Classic Amiga, PicoWiFy is now supported as a clockport Wi-Fi option, and the Modules ADF path now preserves Amiga protection bits correctly so files such as L/System-startup keep the flags they need to boot cleanly.

Why this matters

v0.90 is about trust. It reduces the amount of fragile external tooling in the build path, improves the chance that the first boot on real hardware behaves exactly as expected, and gives clearer feedback while the app is working. That makes Amiga Imager feel less like a wrapper around scripts and more like a real native build tool.

Good to know

The native engine now covers the core RDB and FFS work, but PiStorm FAT32 boot-partition creation and native PFS3 work are still not fully on the new path yet. Some shipped hardware combinations, especially parts of the MiSTer RTG and wider Classic NIC matrix, also still need broader field confirmation.