Update changelog

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Added
+
+- Extended the holdings table by the date of first activity in the _Copy AI prompt to clipboard for analysis_ action on the analysis page (experimental)
+- Extended the holdings table by the date of first activity in the _Copy portfolio data to clipboard for AI prompt_ action on the analysis page (experimental)
+
 ## 3.58.0 - 2026-08-22
 
 ### Changed