Fresh 4.0.4 Fix -

: Ensure your basePath is configured correctly in deno.json if you are hosting your app in a subdirectory. Releases · denoland/fresh - GitHub

: If dependency version mismatches are causing errors, deleting your deno.lock and rerunning deno install can resolve stubborn routing or build issues. Fresh 4.0.4 fix

: Common causes for unexpected 404s include mismatching case in URL paths or missing/extra trailing slashes, which Fresh handles strictly by default. Recent Release Fixes (Fresh 2.0+ Context) : Ensure your basePath is configured correctly in deno

If you are trying to "fix" a 404 error in your application, Fresh provides dedicated ways to handle missing routes: Fresh 4.0.4 fix

: Significant fixes have improved state retention in islands during development, preventing the full-page reloads that previously plagued island updates. Troubleshooting Checklist