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Feeld raised its minimum supported app version (9.5.3 hit the App Store 2026-06-05) and now rejects 9.4.3 with UNSUPPORTED_APP_VERSION 400 on every GraphQL call — which broke site load entirely. Verified 9.5.3 is accepted. Updated APP_VERSION in constants.ts (drives the Apollo x-app-version header) and server/index.js, plus the UA / x-app-version strings in the vite graphql, firebase, and fldcdn proxies. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>