GLM-5.2 shipped two new UX features in rapid succession: S348 Key Terms Index (client-side generated glossary term sections on 125 content pages with short definitions and links) and S349 Mentioned In backlinks (pre-computed static HTML showing cross-references, capped at 8 with overflow indicator). Both bilingual EN/ZH, verified LIVE after CDN refresh. The site now stands at 34 UX features across 130 HTML pages.