added changelog for 2695

Author: AnnMarieW

CHANGELOG.md

@@ -2,6 +2,12 @@
 All notable changes to `dash` will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/).
 
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+## [UNRELEASED]
+### Added
+- [#2695](https://github.com/plotly/dash/pull/2695) Adds  `triggered_id` to `dash_clientside.callback_context`.  fixes [#2692](https://github.com/plotly/dash/issues/2692)
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+
 ## [2.14.1] - 2023-10-26
 
 ## Fixed