OP–Z OS updates
how to update:
1. hold the SCREEN button while powering up. this will put OP–Z in update mode.
2. drop the firmware file in the root folder of the OP–Z disk.
3. eject the disk.
4. wait for the update to finish. do not turn off the synth.
5. the update is finished when the four dial leds are green. the unit will restart automatically after 5 seconds.
note:
the OP–Z and module firmwares cannot both be updated at the same time. when updating both, please follow the entire procedure for each firmware file separately.
always make sure to carefully back up your content before updating.
OS
date
new update features:
https://teenage.engineering/_software/op-z/z_firmware_1_2_45.zfw 1.2.45
2022.03.31
click to download

improved usb-c tousb-c connection logic

line module
specific fixes

reduced ble midi jitter

fix rare module communication glitch

allow master transpose on module track

https://teenage.engineering/_software/op-z/z_firmware_1_2_40.zfw 1.2.40
2021.06.18
click to download

fix content mode bug that could cause corrupt samples and patterns on import

https://teenage.engineering/_software/op-z/z_firmware_1_2_39.zfw 1.2.39
2021.06.08
click to download

fix send level editing from fx track

always apply input source parameters on pattern change

https://teenage.engineering/_software/op-z/z_firmware_1_2_38.zfw 1.2.38
2021.06.03
click to download

input signal improvements: controlled via i/o track (hold shift to select source)

supports filter, lfo, pan and volume

auto on for usb

allow multiple input sources active

input monitoring on all input signals, not just usb. read more here
.

move midi settings to SCREEN + TEMPO

minor sampler mode ui changes read more here

fix corrupt sample pack folder name on iPad

send pitch bend on correct midi channel when remapped

allow sending cc from knobs on muted track

allow send level editing from fx track read more here

increase pan lfo range

backlight now on steps 1, 5, 9, 13

make audio mute work on all tracks

fix pop at start when playing instruments with full fx send

fix rare bug that could cause random parameter changes

fix rare bug the caused the unit to restart automatically

fix rare hang requiring restart of unit

cpu optimizations

https://teenage.engineering/_software/op-z/z_firmware_1_2_31.zfw 1.2.31

2020.08.21
click to download

add monophonic mode to drum tracks

shortcut for setting midi channel per track. read about it here

allow switching octave when holding step and adding notes

improved random preset for chord and fx tracks

fix bug with certain lfo targets not honoring depth knob polarity

add dead zone to swing knob to ensure no swing when in center position

fix rare content mode issue where imported file was corrupted

fix bug that ignored certain midi settings when connected to app

fix bug with punch in loop effect that would cause noticeable cpu load

https://teenage.engineering/_software/op-z/z_firmware_1_2_28.zfw 1.2.28

2020.04.23
click to download

improved cpu performance

automatically add and assign the new engines to free slots

triple press to lock pattern/mixer/tempo/ screen buttons

allow removing factory plugs from slots by holding track + slot

changed which plugs are default when creating new pattern

fix bug where importing user plugs didn't work directly after factory reset

https://teenage.engineering/_software/op-z/z_firmware_1_2_26.zfw 1.2.26

2020.03.27
click to download

improved charging of completely depleted batteries

higher micro timing resolution for longer tracks

add dry mix setting to all fx plugs

dsp optimizations

fix issue with iOS rejecting usb connection after OP–Z had been connected to computer

fix issue where usb audio right channel would occasionally output 16 bit quality instead of 24

https://teenage.engineering/_software/op-z/z_firmware_1_2_20.zfw 1.2.20

2020.02.07
click to download

fix content disk and midi port not appearing until removing / inserting usb cable (usb-a only)

fix flipped L / R signal in outgoing usb audio

fix bug that could cause a noisy microphone signal after switching effect plug

fix broken reset spark component setting

fix resetting spark counters on cued pattern switch instead of instant switch

fix bug with active drone notes preventing certain buttons from working

fix default arpeggio settings when switching to new pattern

improved step velocity editing

change track mute cc to treat value 127 as mute (in addition to 1)

https://teenage.engineering/_software/op-z/z_firmware_1_2_17.zfw 1.2.17

2019.12.17
click to download

module stability improvements

app file transfer improvements

exponential lfo depth knob

add "generous_chords" option for 6 note poly on chord track. read more here
.

fix occasional false low battery warning

https://teenage.engineering/_software/op-z/z_firmware_1_2_14.zfw 1.2.14

2019.11.15
click to download

improve sample preloading, less likely to miss first note when switching pattern

switch pattern immediately on incoming program change (instead of waiting until next step)

change trig driven tracks to play upon entering step instead of exiting

truncate overlapping sequencer trigs if same note

fix crash when connecting to app with certain patterns

fix bug where pressing play caused pitch change in sample mode

fix bug where triggers on fx2 would affect tape track

show correct led color for last six LFO shapes

https://teenage.engineering/_software/op-z/z_firmware_1_2_12.zfw 1.2.12

2019.11.05
click to download

redesigned lfo with new shapes, tempo sync and accelero-meter support. read about it here
.

add lfo to effect tracks

add note style option to master track (latch, free). read about it here
.

add low battery led indication. read about it here
.

add setting to disable arpeggio. read about it here
.

softer pop at shortest envelope release setting

fix crash when killing notes (TRACK+STOP) on tracks other than the first 8.

fix flipped usb audio L/R signal

fix occasional pop/noise on tape track

fix bug where polyphony note stealing sometimes chose wrong note

don't stall midi output when switching projects while connected to app

disregard 'channel_one_to_active' setting when processing incoming UI group CC messages

https://teenage.engineering/_software/op-z/z_firmware_1_2_8.zfw 1.2.8

2019.09.06
click to download

fixed bug that would cause files to disappear/get corrupted

detect microphone signal from splitter adapters

new input selection functionality (beta). read about it here
.

new audio interface monitor mode

fix broken incoming program change handling

add cc for changing/switching to next/prev pattern. read about it here
.

make microphone mode work when usb audio is active

allow octave shifting on all tracks

fix drone notes to work properly with legato

https://teenage.engineering/_software/op-z/z_firmware_1_2_5.zfw 1.2.5

2019.07.01
click to download

new sampling mode

2 channel audio interface

full OP-1 sample format support (pitch, gain, playmode, reverse)

improved stability

support importing raw samples to drum tracks

apply track gain before fx sends

don't allow copying empty steps

restart arpeggio with TRACK + PLAY on arpeggio track

don't trigger gate step component if track is muted

toggle headset input with SCREEN + SHIFT

send clock out if enabled even though midi out is disabled

don't loose clock sync when switching project via pattern change

fix broken parameter spark random setting

fix force save not working on project 1

fix inverted headphone gain levels dep. on impedance

note!
this firmware adds support for the gain, play direction and playmode settings of the OP-1 sample format. in older firmwares, these settings were ignored. this might lead to your patterns sounding different if you are using custom samplepacks.
the most likely culprit will be the playmode setting. the OP-1 defaults to GATE, while the OP-Z used to treat everything as RETRIG. Adjust your playmode setting on each sample to RETRIG, to get it sounding like before.
if your track levels change due to the gain setting, either adjust the track volume, or adjust the per sample gain value.
https://teenage.engineering/_software/op-z/z_firmware_1_1_27.zfw 1.1.27

2019.04.05
click to download

now supporting two midi devices when using a powered USB hub

improved compatibility with a number of usb devices

improved usb midi throughput (reduce risk of lost notes)

handle importing WAV and AIF files without meta data to synth tracks

fix crash when connecting to app with certain patterns active

fix synth sampler noise bug with certain samples

more descriptive error messages in sample import

add general.json setting to latch notes using shift. Release notes while holding shift to latch (latch_notes_with_shift)

add general.json setting to disable auto-added FX A when applying temporary parameter tweaks (temp_param_add_fx_a)

https://teenage.engineering/_software/op-z/z_firmware_1_1_23.zfw 1.1.23

2019.02.22
click to download

allow programming steps with external controller

support velocity on arpeggiator track

change step length setting 9x to be 16x long

add full octave range to drum tracks

pass incoming midi start/continue/stop to other ports

improved stability

copy step now works on all tracks

change default tape volume and reverb parameter 2

fix noisy resampling in synth sampler

keep sending audio to fx1/fx2 if audio muted

improve midi continue behaviour (works better with OP-1)

change maximum recording note length based on step length

show pattern position from solo mute context (same as pattern context)

properly reset parameters after releasing shift (temporary tweak mode)

“enable_program_change” setting now saved between reboots

don't play trigger driven tracks when muted

gate trigger step component trigger on entering step instead of exiting

fix hanging notes from linked tracks when pressing shift before releasing note

fix hanging punch in notes when releasing shift before releasing note

remove track clear wipe animation

https://teenage.engineering/_software/op-z/z_firmware_1_1_17.zfw 1.1.17

2018.12.07
click to download

add option to disable USB charging with SCREEN+E2 (to remove ground noise)

improve headphone / line jack detect (solves issues like getting mono with stereo cable)

add option to keep parameter page when switching track (“disable_param_ page_reset” setting to general.json)

clear step parameter locks with STEP+STOP

make temporary parameter changes (holding shift) available for all tracks

smoother volume knob interpolation

hard kill active track notes on double press TRACK+STOP

separate battery animations depending on USB state

minor bug fixes

https://teenage.engineering/_software/op-z/z_firmware_1_1_12.zfw 1.1.12

2018.11.13
click to download

reduced cpu consumption, improves battery life by 5-10%

occasional hang when removing a connected usb device

occasional crash when recieving midi identity request on startup

sequencer stalling when connecting a usb device

configurator sometimes causing pops in downloaded samples

imported sample packs to slot 10 lost after reboot

outgoing program change had inverted “alt_program_change” setting

app->synth connection lost when disabling midi out under midi settings

sequencer sometimes starting on last step when step by step recording