docs: update changelog

Author: jamiebrynes7

docs/docs/changelog.md

@@ -10,6 +10,12 @@ 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
+
+### ✨ Features
+
+- The plugin will now automatically refresh your Todoist projects, sections, and labels in the background. This happens every 10 minutes. This should reduce the incidence of "unknown" metadata labels.
+
 ## v2.4.0 (2025-12-28)
 
 ### ✨ Features