Update DocumentationUpdate.md

Author: psonnera

docs/EN/Maintenance/DocumentationUpdate.md

@@ -2,12 +2,14 @@
 
 ## July 2026
 
+- [Introduction](../Getting-Started/Introduction.md): accuracy review of the APS section. Corrected the Frontiers citation title and link, reframed it as background rather than a current market guide, updated the dual-hormone and full closed loop statements, clarified that the controller is not always a phone app, removed commercial brand names and unsourced user counts, and fixed OS-AID to *Open-Source Automated Insulin Delivery* @psonnera
+- [Glossary](../UsefulLinks/Glossary.md): added **AID**, **FCL**, **HCL** and **OS-AID** entries, cross-linked from **APS** and **Closed Loop** @psonnera
 - New page [Android developer verification](#android-developer-verification): impact of Google's upcoming verification requirement on installing self-built apps, with free installation methods (ADB, advanced flow, limited distribution account) @psonnera
 
 ## June 2026
 
 - [Browser Build](#browser-build): restructured into a decision-first, multi-page flow (Fork → keystore Option 1/Option 2 with a dedicated page per device → Google Drive → Build → Troubleshooting); removed nested tabs and made installing File Manager Plus a prominent step @psonnera
-- [Introduction](../Getting-Started/Introduction.md): terminology switched from *DIY* to *OS-AID* (Open-Source Automated Insulin Dosing), added Trio and Stelo, updated pump/CGM compatibility table @tmhastings
+- [Introduction](../Getting-Started/Introduction.md): terminology switched from *DIY* to *OS-AID* (Open-Source Automated Insulin Delivery), added Trio and Stelo, updated pump/CGM compatibility table @tmhastings
 
 ## March 2026