chore(@mendix/calendar): update changelog

Author: uicontent

packages/modules/calendar/CHANGELOG.md

@@ -6,6 +6,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+## [2.0.0] Calendar - 2025-08-01
+
 ### Added
 
 - Initial version of Calendar module.
+
+### [2.0.0] Calendar
+
+#### Breaking changes
+
+- Initial version of Calendar pluggable widget.
+
+- Upgrading from any v1.x to v2.0.0 preview requires re-configuring the widget in Studio Pro. The property panel has been reorganised (e.g. View settings, Custom work-week options) and missing/renamed properties will be reset to their defaults. After installing v2.0.0 open each Calendar instance, review the settings and re-select the desired values.

packages/pluggableWidgets/calendar-web/CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+## [2.0.0] - 2025-08-01
+
 ### Breaking changes
 
 - Initial version of Calendar pluggable widget.