Software version 21.19 for the Forerunner 255 Series is currently at 100%. You may manually download this software update by following the path below:
-
Menu > System > Software Update > Check For Updates
Forerunner 255 Basic Series:
Change log:
- Adds compatibility for Garmin Coach strength training plans.
- Improvements to support Pool Swim workout with pace alerts and critical swim speed.
- Improvements to the Pool Swim rest screen and alert tones.
- Adds the Moon Phase glance.
- Lactate Threshold estimates are applied automatically after training with heart rate.
- Fixed an issue where some types of daily suggested workouts do not show estimated training effect.
- Fixed an issue where when the timer is set to silent mode, it still makes a sound.
- Fixed an issue where Android smart notification images sometimes fail to load.
- Fixed an issue where heart rate randomly spikes after activity is saved.
- Fixed an issue where Navigation using map only adds turn icon for some sports profiles.
- Fixed an issue where accent color of "Other" activities would not save.
- Fixed an issue where custom workouts would not work in some activities.
- Fixed an issue where adding Heart Rate to glance folder would break when heart rate is disabled.
- Fixed an issue where sleep would sometimes not be recorded when waking up long after configured wake time.
- Fixed an issue where the edit icon appeared intrusive.
- Fixed an issue where device would return to previous page when browsing Weather glance.
- Fixed an issue where sleep mode would resume after user manually exited sleep mode.
- Fixed an issue where Triathlon activity profile copies were showing as Run profiles.
Forerunner 255 Music Series:
Change log:
- Once device Software has been updated, it is recommended users sync their devices using Garmin Express or Wifi to expedite the transfer of files required for the meditation activity.
- Adds compatibility for Garmin Coach strength training plans.
- Improvements to support Pool Swim workout with pace alerts and critical swim speed.
- Improvements to the Pool Swim rest screen and alert tones.
- Adds the Meditation activity.
- Adds the Moon Phase glance.
- Lactate Threshold estimates are applied automatically after training with heart rate.
- Function Threshold Power estimates are applied automatically after training with power.
- Fixed an issue where some types of daily suggested workouts do not show estimated training effect.
- Fixed an issue where when the timer is set to silent mode, it still makes a sound.
- Fixed an issue where Android smart notification images sometimes fail to load.
- Fixed an issue where heart rate randomly spikes after activity is saved.
- Fixed an issue where Navigation using map only adds turn icon for some sports profiles.
- Fixed an issue where accent color of "Other" activities would not save.
- Fixed an issue where custom workouts would not work in some activities.
- Fixed an issue where adding Heart Rate to glance folder would break when heart rate is disabled.
- Fixed an issue where sleep would sometimes not be recorded when waking up long after configured wake time.
- Fixed an issue where the edit icon appeared intrusive.
- Fixed an issue where device would return to previous page when browsing Weather glance.
- Fixed an issue where sleep mode would resume after user manually exited sleep mode.
- Fixed an issue where Triathlon activity profile copies were showing as Run profiles.