When minimumReleaseAge requires fetching full package metadata to inspect per-version publish times, omit etag and modified conditional headers. Abbreviated document validators cannot validate a full packument representation. Omitting them prevents registries that reuse ETags across representations from returning 304 Not Modified without time data. Closes pnpm/pnpm#14925 --------- Co-authored-by: Zoltan Kochan <z@kochan.io> Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>