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 ## Overview
 ThrillWiki is a community-driven web application for discovering, reviewing, and tracking theme parks, rides, and related entities globally. Its core purpose is to provide a centralized platform for enthusiasts to research attractions and contribute to a collaborative knowledge base through user contributions and reviews, offering a comprehensive encyclopedia for the theme park world.
 
+## Recent Changes (October 8, 2025)
+
+### Security Enhancements
+- **Fixed JWT Decoding Security Vulnerability:** Updated `cancel-email-change` Edge Function to properly handle base64url encoding used by JWT tokens. Replaced browser-specific decoding with a secure implementation that correctly normalizes URL-safe characters and adds proper padding.
+- **Enhanced Error Handling:** Added comprehensive error handling to all Supabase Edge Functions with granular try-catch blocks for network requests, JSON parsing, and API responses. Improves reliability and provides detailed error messages for debugging.
+
 ## Recent Changes (October 7, 2025)
 
 ### Security Enhancements