OXI ONE MKII firmware 2.0 adds three new sequencer modes

The OXI ONE MKII turned a first birthday into a real workflow upgrade, adding SAGA, DOMINO and MIDI Player in firmware 2.0.0 and giving vintage and hybrid rigs new ways to move beyond straight clock duties. OXI Instruments posted the release on May 7, alongside a birthday message that teased, “Happy Birthday OXI One MKII!! Something is dropping May 7.”

That timing fit the machine’s role. The MKII is not a simple step box, but a deep controller with 8 sequencers, 64 tracks, 6 sequencing modes, 64 modulation lanes, 8 CV outs, 8 gate outs, USB host, Bluetooth MIDI and up to 8-hour battery life. The latest firmware installs through the OXI App, which the support page lists at version 1.4.2 from March 18, 2026. For owners running a rack full of older hardware, that matters because the OXI often acts as the central brain, the piece that decides whether a studio feels rigid or playable.

The new modes are the part that changes the day-to-day experience. SAGA, DOMINO and MIDI Player push the MKII further toward composition and performance rather than just transport and note output. That is especially useful in vintage-synth setups where a sequencer has to do more than tick along. A classic analog mono, a hybrid desktop module or a modular voice often comes alive when the sequencing feels less linear and more conversational, and the MIDI Player addition points directly at that kind of bridge between structured patterns and external MIDI material. In practice, it means a single box can keep a mixed rig feeling fresh without forcing anyone to replace the old instruments at the edges of it.

OXI has been building the platform this way from the start. The company describes the MKII as shaped by feedback from artists and the global community, and the firmware cadence shows that the hardware is still being pushed forward after launch. The original OXI ONE arrived on Indiegogo in 2021 and reached its goal in a couple of hours, which set the tone for a product line that has always felt community-driven rather than frozen at shipment. OXI now says the original MK1 is no longer being produced, though firmware support will continue as long as memory and CPU allow.

That is the real birthday story here. The MKII did not just gain three new modes, it gained more room to behave like the kind of command center that keeps a vintage or hybrid rig relevant. For a sequencer sitting at the middle of Eurorack, Buchla and other hardware stacks, that kind of update can stretch the life of the whole collection.