2026-07-29

# V1.14 Test Time Setting Fix, Firmware Installer Reliability

- Fixed the test time setting changing every time the settings screen
  was visited: the slider was initialised with raw milliseconds instead
  of the logarithmic slider position, corrupting the stored value (e.g.
  4.0s became 20s, 1.0s drifted towards 0.3s). The log mapping is now
  also exactly reversible for every allowed value, so the setting can
  no longer drift. Units that ran V1.12/V1.13 should re-check their
  test time setting once after updating.
- Firmware installer now recovers automatically from a device that
  stops responding mid-install (prompts to power-cycle, then resumes
  from the interrupted flash sector instead of failing).
- Bootloader flash driver fixes: transient flash errors are retried
  instead of leaving the unit needing a power cycle, and a reset during
  an install leaves the bootloader contactable instead of crashing into
  a partial image.


# V1.13 Firmware Update Reliability Improvements

Improved error handling and recovery during firmware installation.


2026-05-03

# V1.12 Maximum Test Time Increased to 20s

Uses logarithmic time scale to allow for longer test times
without losing slider setting resolution at short times.

# V1.11 Increased Maximim Test Time

2.10s -> 4.0s


# V1.10 New Touch Screen Support

- Added support for new touch screen type.
- eliminated excessive startup delay

1.9 Fix possible startup failure since 1.5


1.8 Fix staggered blowoff timing bug

Previously when staggered blow-off was enabled, this had to be done
within the pressurisation period. This often resulted in bottles
from heads 2+ not being blown off. This is now fixed.


2022-04-23

1.5 Allow test times up to 2.1 seconds

2021-08-10

1.4 Implement I/O forcing

I/O forcing is now implemented.



2021-08-02

1.3

- fix LTU4000 on/off display on entering installation screen.
  Previously would always show off when go into screen.

2021-07-26

1.2

- Fix I/O screen crash when touch an I/O point. Add note that I/O forcing
not implemented.

- Add firmware version to home screen top right

- add "ltu4000" mode which inverts the reject relay state to simulate the
  LTU2000 PCB

2021-07-09

1.1

Fix product name 4000 vs 8000. Make generic for now i.e. "LTU series".

2021-06-25

1.0

Fix AC start signal


2021-05-21

0.9

Red bin icon


2021-05-20

0.8

Use bin icon for reset count

fix reset bottles per hour


2021-05-20

0.7

Added bottles per hour displays

Added languages and language chooser


2021-02-23

0.3

Allow 4-head operation.

Fix leak tester simulation.



2020-06-01

Initial check-in
