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@@ -5,6 +5,14 @@ ThrillWiki is a community-driven web application for discovering, reviewing, and
 
 ## Recent Changes (October 8, 2025)
 
+### Critical Bug Fixes & Performance Optimization - Session 3
+- **Fixed Image Upload Race Condition:** Resolved critical issue in `uploadPendingImages` where parallel uploads using Promise.all could leave orphaned images in Cloudflare on partial failures. Switched to Promise.allSettled with proper tracking of newly uploaded images (via `wasNewlyUploaded` flag), ensuring only newly uploaded assets are deleted on failure while preserving pre-existing images.
+- **Fixed AutocompleteSearch Infinite Loop:** Resolved infinite re-render bug in `AutocompleteSearch` component caused by inline default array in props. Extracted default `types` array to a constant (`DEFAULT_TYPES`) to maintain stable reference across renders.
+- **Enhanced Test Data Generator:** Implemented missing advanced options (`includeConflicts`, `includeVersionChains`, `escalated`, `expiredLock`) in `seed-test-data` Edge Function. Now properly generates test scenarios including conflicting submissions, version history chains, escalated reports, and expired moderation locks.
+- **Fixed PostgreSQL JSON Queries:** Corrected `clearTestData` and `getTestDataStats` functions to use proper PostgreSQL JSON path operators (`->` and `->>`) instead of invalid `contains()` syntax for querying nested `metadata.is_test_data` fields.
+- **Added Image ID Validation:** Enhanced `upload-image` Edge Function with format validation for imageId parameter to prevent injection attacks. Now enforces safe character set (alphanumeric, hyphens, underscores) without disrupting UUID formats.
+- **Optimized Upload Performance:** Parallelized image uploads for significant performance gains while maintaining atomic failure handling - all uploads succeed or all rollback cleanly.
+
 ### Critical Bug Fixes - Session 2
 - **Fixed Infinite Loop in Search Hook:** Resolved critical infinite re-render issue in `useSearch` hook by implementing JSON.stringify-based option keying. This creates stable references for search parameters (types, limit, minQuery) even when callers pass inline array literals, preventing infinite fetch loops while maintaining reactivity to option changes.
 - **Fixed React Hook Order Violations:** Corrected hook call order in `useSearch` by ensuring all useState declarations come before useMemo/useCallback/useEffect. This prevents HMR (Hot Module Reload) errors and React queue violations during development.