Pebble SDK 3.10 - Changelog

Release Date: March 7 2016

Added energy (Calorie) usage to the Health app.
Changed "till" to "'til" in the low battery modals.
rand is now seeded from the hardware RNG on app start, as it was in firmware 3.4 and earlier.
Notifications containing only an emoji will now fill the screen with that emoji, if that emoji supports this.
Added support for filtering notifications by app on iOS (requires iOS app 3.10).
Fixed a window stack crash affecting some 2.x apps running on 3.9 watches.
Fixed an error on Pebble Classic and Pebble Steel where reminders did not include their description.
An issue causing the sleep graph to sometimes be blank on the deep sleep display of the Health app was resolved.
Improved Health accuracy.
Improved firmware stability.

Added support for debugging apps with gdb, in conjunction with pebble tool 4.2.
Added health_service_get_measurement_system_for_display to retrieve the user's unit preference.
Added health_service_sum_averaged and health_service_metric_averaged_accessible to access average health data. These can be used to determine the goal line used by the Pebble Health app.
Added HealthMetricRestingKCalories and HealthMetricActiveKCalories to retrieve Calorie burn information from Pebble Health.
CFLAGS and LINKFLAGS env variables are now correctly honored by the app build process.
JSON files under the src/js/ directory are available to require in newly-created projects.
persist_write_bool and persist_write_int are now correctly documented to return the number of bytes written on success.