**BREAKING:**
- The minimum required next version is now 14.3.0-canary.68. This is
because we are migrating away from the deprecated
experimental.serverComponentsExternalPackages next config key to
experimental.serverExternalPackages, which is not available in older
next canaries
- The minimum `react` and `react-dom` versions have been bumped to
^18.2.0 or ^19.0.0. This matches the minimum react version recommended
by next
