A new version of the firmware for the Ultimate-64 / Ultimate 1541 II / Ultimate 1541 II+ by Gideon and some enhancements by Markus is released.

Changelog of Ultimate-64 / 1541 Ultimate 2+ by Gideon

• NEW: Audio Mixer
• 1541 Ultimate II+ only:
  • NEW: External Audio In
• 1541 Ultimate II and II+ only:
  • Can now be used in Ultimate 64
• Ultimate 64 only:
  • SpeedDOS Parallel Cable (needs e.g. DolpinDOS roms)
  • Interface type: Ultimate Menu picture overlay (HDMI-only)
  • USB keyboard support. Like earlier firmware, press scroll/lock to enter/exit the Ultimate menu.
  • Replacement of Charrom and BASIC.
• Display *.64 files as a directory via FTP:
  • Every chosen FTP username enables this feature (*.d64 are shown as directory AND as *.d64 files)
  • The username “d64″ deactivates the listing of *.d64 files (*.d64 are only shown as directory)
  • The username “d642″ disables this feature completely, (*.d64 are only shown as files)

.. and there are many improvements not present in the changelog.

Note for the Ultimate 64:

You will need a kernel, basic and character rom after the upgrade. These roms are not included in the update. These roms are distributed with vice-emu, but you can also find them on zimmermans.net.

For instance, you could use these roms: 901225-01.bin (char), 901226.bin (basic) and 901227-03.bin (kernal). Roms with the .rom extension should also work.

Changelog of Ultimate-64 / 1541 Ultimate 2 / 1541 Ultimate 2+ by Markus

Changes in this release (compared to 3.3):

• You can now flash more alternative kernals and floppy roms (1541 Ultimate II+: 2, Ultimate 64: 3).
• Kernals and floppy roms can be loaded without flashing
• Pressing the following keys while turning on the Ultimate 64 will change the video mode to
  • D => DVI
  • H => HDMI
  • R => RGB
  • C => Composite/S-Video
• Fix writing to kernal via TCP Port 64 on Ultimate 64
• Fix Fast Reset on “Original” Kernal on Ultimate 64

Download:

• Gideon Ultimate-64/1541 Ultimate 2+ Firmware (884)
• Markus Ultimate-64/1541 Ultimate 2/2+ v1 Firmware (946)
• OSRom (kernel,basic,character) and many more (938)

source: ultimate64.com github.com/markusC64