pebble/devsite/source/_changelogs/4.0-dp3.md

title, date

title	date
Pebble SDK 4.0-dp3 - Changelog	2016-07-06

This is a developer preview release of SDK 4.0. No firmware is provided.

Changes to Firmware

• Fixed diorite vibrating on boot until cancelled.
• App icons can now be provided in PDC format.
• Changed the watchfaces icon!

Changes to SDK

• Renamed AppGlanceSlice.layout's template_string to subtitle_template_string and icon_resource_id to icon. You will need to update your apps appropriately for them to compile.
• The compass service will now return CompassStatusUnavailable on diorite watches, which do not have a compass. Apps built with SDK 2 or SDK 3 will still see CompassStatusDataInvalid.
• Added a PBL_API_EXISTS macro, for checking if an API is available in a the current SDK at compile time. This macro was also added to SDK 3.14.
• Fixed a bug that caused messageKeys containing an underscore to be mangled.

Known Issues

• The UnobstructedAreaHandler object must be created before being passed into the unobstructed_area_service_subscribe method.