---
title: "Pebble SDK 3.4 - Changelog"
canonical_url: https://developer.repebble.com/sdk/changelogs/3.4/
last_updated: 2025-02-25
sdk_version: 4.33.1
---
# Pebble SDK 3.4 - Changelog

Source: https://developer.repebble.com/sdk/changelogs/3.4/

_Release Date: September 9 2015_

### Changes to Firmware

- Improved calendar and reminder pin display.
- Added support for internationalization and localization.
- Added standby mode (disables bluetooth when the watch is not being worn). 
  - This can be toggled in Settings \> System \> Stand-by Mode.
- Renamed "Do Not Disturb" to "Quiet Time" and expanded functionality. 
  - Can now disable notifications during calendar events.
  - Holding back from a watchface will now toggle Quiet Time.
  - Quiet Time can be enabled from notifications.
- Increased timeline paragraph length limit.

### Changes to SDK

- Enabled [timeline HTTP actions](https://developer.repebble.com/guides/pebble-timeline/pin-structure.md) (requires iOS app 3.2 or Android app 3.4).
- Added [Smartstrap APIs](https://developer.repebble.com/guides/smartstraps.md).

### Changes to Pebble Tool

- Added the [`pebble emu-control` command](https://developer.repebble.com/guides/tools-and-resources/pebble-tool.md), which enables sending real-time accelerometer and compass data from phones to the pebble emulator.

### Changes to Emulator/Phonesim

None.