# ChangeLog
## v3.1.3 - 2023-11-13
* Resolved issue 'ADC_ATTEN_DB_11 is deprecated'.
## v3.1.2 - 2023-10-24
### bugfix
* Fixed a bug where iot_button_delete feature crashes for custom button
## v3.1.1 - 2023-10-18
### bugfix
* Fixed a bug where multiple callbacks feature crashes for BUTTON_MULTIPLE_CLICK
## v3.1.0 - 2023-10-9
### Enhancements:
* Support matrix keypad
## v3.0.1 - 2023-9-1
### Enhancements:
* Resolves bug for iot_button_unregister_event function returned error when reallocating with 0 byte.
* Update Test cases to test iot_button_unregister_event_cb
* Add api iot_button_stop & iot_button_resume for power save.
## v3.0.0 - 2023-8-15
### Enhancements:
* Add support to register multiple callbacks for a button_event
* Update iot_button_unregister_cb, to unregister all the callbacks for that event
* Add iot_button_unregister_event to unregister specific callbacks of that event
* Add iot_button_count_event to return number of callbacks registered for the event.
* Update iot_button_count_cb, to return sum of number of registered callbacks.
* Add support for Long press on specific time
* Add iot_button_register_event, which takes specific event_config_t data as input.
* Add BUTTON_LONG_PRESS_UP to trigger callback at the latest time of button release
* Update BUTTON_LONG_PRESS_START to trigger callback as the time passes for long_press.
* Add support to trigger callback for specified number of clicks.
## v2.5.6 - 2023-8-22
### bugfix
* Fixed a bug where the Serial trigger interval in button_long_press_hold event fires at an incorrect time
## v2.5.5 - 2023-8-3
* Add modify api which can change long_press_time and short_press_time
## v2.5.4 - 2023-7-27
### Enhancements:
* Add test apps and ci auto test
## v2.5.3 - 2023-7-26
### Enhancements:
* `repeat` defined in struct button_dev_t is reset to 0 after event `BUTTON_PRESS_REPEAT_DONE`
## v2.5.2 - 2023-7-18
### Enhancements:
* Set "event" member to BUTTON_PRESS_REPEAT before calling the BUTTON_PRESS_REPEAT callback
## v2.5.1 - 2023-3-14
### Enhancements:
* Update doc and code specification
* Avoid overwriting callback by @franz-ms-muc in #252
## v2.5.0 - 2023-2-1
### Enhancements:
* Support custom button
* Add BUTTON_PRESS_REPEAT_DONE event
idf.py add-dependency "espressif/button^3.1.3"