Software update 2.55.46 (17th. August 2026)

[gorhabb]

Suunto Nautic - Release notes: 2.55.46

This update brings new features, improvements and bug fixes.

New Dive features:​

New dive mode: CCR
Possibility to add CCR diluent and bailout gases
Changed the amount of maximum allowed gases from 5 to 8
CCR Setpoint setting: auto and manual
CCR functions during dive:
Automatic setpoint change
Setpoint alarms
CCR switchwindow elements
CCR items to dive summary
Heart rate belt pairing
Allow < 18% Trimix gas mix for active agas in CCR and Multigas mode at the surface

Bug fixes:

Rain precipitation and wind sometimes 0
Fix issues if switching between languages on first set up.

The location icon occasionally disappear after panning the map

When switching between views the screen experience some lag
Wrong error message and icon if password didn’t match

The flashlight quickly discharges to low battery

Flashlight not working in factory setup
Wrong icon for pairing new device

Power consumption and charging optimization

Extend the maximum decompression time to show value instead of >99min
The BLE chip does not always recognise clock correctly

Sometimes tank pressure alarm acknowledgment changes switch-field selection

Incomplete time points in tide chart

The curve chart of the tide chart does not have color fill
The current data line of the tide chart is too long
After changing unit settings, the widget units are not switched
Location display in tide widget is incomplete
Bug that prevented auto-start to work from the feeling view
Rounding error in GF99 calculations

When using the tide function for the first time, the synchronization time is displayed abnormally
Surface time shows always >99h if device has been powered off
Surface time field was missing from algorithm off view
The bearing pointer sometimes disappeared from compass switch window

The OTU 250 alarm was triggered at 251 and CNS 80 at 81
Wrong Traditional Chinese translation for “Device lock”
Avg & max depth didn’t show any values in switch window after surface time ends

After enabling airplane mode, the Wi-Fi switch button did not turn off.
The password lock screen will wait for 60 seconds before returning to the control panel interface.
Nautic map view shows grids when zooming too close
The error icon on the password error message screen is displayed incorrectly.
Fix how to show the name of a point of interest if too long and cannot be fully displayed

The software update displays an up arrow icon at the top
Bug that caused the button operation indicators to disappear when entering the map interface after switching the map style and directly selecting to pan the map
Nautic was missing sync state indicator
In the Chinese version, the tank pressure is displayed in English units as “psi”.
Wrong pressure unit shown when mixed unit setting used
Add TTS value to delta and @ 5 values even if no deco
Diveplanner didn’t show full data if there are a lot of decostops
GF in switch window shows on gas after deco cleared
Extend the dive planner timeout
Bug that showed GF99 1% at the surface
Algorithm deviation alarm removed from Algorithm off mode
Fix placement of update available banner
Bug that kept gas switch icon visible after gas switch
Planner last stop depth doesn’t fit in spanish language
Add new gas creates extra gas switch event
Graphs should not be displayed in the log summary after a software update

[Nandodiver]

Thats a huge update