Index

Tech - CORE Changelog

The changelog outlines the key updates and improvements to the CORE sensor firmware. Please follow this link for information on updating / changing CORE sensor firmware. 

0.8.7 (2024-09-25)
  • Added heat Strain Index to live data broadcast. This will enable heat strain index export through fit files that are logged from third party wearables in the near future.
  • Fixed problems with pairing certain Bluetooth heart rate monitors, including some COROS products.
0.8.6 (2024-03-18)
Fixed
  • Fixed bug when multiple heart rate monitors paired to CORE
  • Various bug fixes
0.8.4 (2023-11-22)
Added
  • support for heart rate broadcasting via public Bluetooth API
Fixed
  • Various bug fixes
0.8.3 (2023-10-09)
Added
Fixed
  • Various bug fixes

    0.8.2 (2023-07-09)

    • Fix bug with COROS watches

    0.8.1 (2023-06-19)

    • Implement advanced algorithm switching mode logic (default ‘simple switching’)
    • Enable ANT writing into Moxy (with default value core temp in both SmO2 and THb)
    • Allow up to 3 simultaneous BLE connections
    • Improve iOS Firmware update speed
    • BLE connection improvements

      0.8.0 (2023-02-23)

      • Enables concurrent use of the CORE app and a Bluetooth client (e.g. BLE smartwatch)

      • Reduced ripple on ANT+ and BLE body temperature signal output

        0.7.4 (2022-08-10)

        • Improved resolution of history data interval to once every minute (before: once every 5 minutes)

        0.7.3 (2022-04-29)

        • Improvements on the smart algorithm switching.
        • Fixes excessively high temperature readings after removing and re-positioning the sensor. Note: equilibration time until first value is displayed might increase in cold ambient situations.

          0.7.2 (2022-03-01)

          • Fixes excessively high temperature readings at the beginning of a workout.

          0.7.0 (2022-02-02)

          • Smart algorithm switching

            • CORE automatically switches to low activity algorithm when approriate (rest, sleep), even when heart rate monitor is paired.

          • Last 4 digits of CORE ID added to the device name

            • In app device scan, device will show up as "CORE 3A:5F" instead of "CORE"

            • Facilitates identification of unkown devices under iOS

            • Note: Only applies if no nickname is set

          • Adaptions to Bluetooth Health Thermometer Profile (HTP)

            • Extention of Device Information Service to fully comply with HTP

            • only relevant for developers - see this link and this link or contact us for details

          0.6.2 (2021-12-23)

          • Adaptions to Bluetooth temperature profile

            • only relevant for developers - see this link or contact us for details

          • Adaptions to ANT profile

            • only relevant for developers - see this link or contact us for details

          0.6.0 (2021-09-24)

          • Adapted LED feedback:

            • Battery state of charge indication upon shaking core

            • Adapted blink pattern to indicate heart rate monitor connection status

            • "slow blink" pattern when core is charging

          • Standby mode support (Requires CORE app 1.3.5): Increases time between re-charges to up to 5 weeks

          • Bugfix: ANT connection logic leading to heart rate re-connection problems

          • Shaking CORE leads to an addictional scan for heart rate monitors

          0.4.1 (2021-06-21)

          • Improved handling of bad heart rate signal
          • Data quality as low in case of extreme jumps in HR signal
          • Intermediate better support on Wahoo bicycle computers

            0.4.0 (2021-05-26)

            • Activity algorithm dynamic switching without necessary algorithm reset:
            • This is a big change internally when transitioning between the 24/7 Everyday Living algorithm and the Sports Algorithm (with heart rate monitor)
            • Bugfix: Guard against sports algorithm rare crash (scaled feature)
            • Improved "cold start" for greater initial accuracy
            • Heart Rate values < 30 are now regarded as invalid
            • Proper rounding for skin_temp in ANT CORE profile

              0.3.20 (2021-04-23)

              • Set data quality to 0 if charger is plugged-in
              • Reset CoreTemp and quality when leaving a measuring mode
              • Miscellaneous internal bug fixes

                0.3.19 (2021-03-24)

                • Update on data quality 0 is used

                • Always save history independent of quality (before: only saved if quality>0)

                • Continuously update BLE health thermometer profile core body temp value

                  • send notifications if enabled

                  • transmit IEEE11073-NaN if quality == 0

                • Research mode channels fields logging updated

                • Server unit calibration settings verified and synced properly

                0.3.18 (2021-03-10)

                • Auto-fix too many paired Heart Rate monitors bug at firmware startup
                • Updates to the research mode functionality

                  0.3.17 (2021-02-17)

                  • Add standard BLE battery profile
                  • Run ANT Heart Rate monitor search after new device paired or new measurement started
                  • ANT Core profile: page0 HR status now indicates active HR connection (instead of 'min. 1 device paired')
                  • Miscellaneous internal bug fixes

                    0.3.16 (2021-02-04)

                    • Quality score in no-sports mode now based updated to more relevant value

                    • ANT Core profile

                      • allow pairing with wildcards

                      • handle page70 requests for pages 0 and 1

                      • transmit correct ANT page0 HR source status

                      • HR pairing via ANT

                    0.3.15 and earlier

                    Prior change logs available upon request