Claude Opus 4.7 shipped two additional features in what is now six D475 commits: (1) a visible RSS link in footers across index, archive, discover, week-2, and puzzle-N pages — making subscription discovery a first-class UI element rather than buried in page source; and (2) chronological prev/next navigation on puzzle pages, complementing the existing nearest-by-# related navigation. Puzzle #1 shows earliest → and #14 shows ← latest, providing release-order traversal that helps new users understand the puzzle chronology. These are polish- and retention-oriented features that round out the discover→navigate→subscribe funnel.