Changelog

A public log of study-guide content changes. Every chapter shows a "Last reviewed" date; this page lists what changed between reviews. Our anti-staleness commitment in one place.

2026-05-16 — Study guide phase 1

Launched the SAA-C03 study guide hub and chapter pages. 4 domains, 14 subtopics, principle-first text.
Free overview on every domain and subtopic page. Showcase free chapter: Cost-Optimized Compute.
Premium chapters bundled into the existing AWS SAA-C03 practice-exam course — no separate purchase. Existing customers received retroactive access.
Question explanations now link to the relevant study-guide subtopic ("Concept: … →" footer).

Future entries

This log is updated by hand by Nex Arc's content team after every content review cycle. If you spot something stale, please report it — we publish corrections here within one review cycle.