Curated SaaS list-price history containing 18 observed Microsoft 365 and Google Workspace plan-change records from official announcements spanning 2021 through July 2026, checked 2026-09-05.Edition 2026.09.05.40ff112d9066, prepared 2026-09-05. 18 records in CSV and JSONL, with schema, sample, included source material, provenance and SHA-256 checksums.One-time fixed download; no recurring service. A bounded announcement-based history, not a daily price archive or complete SaaS market census. Contract terms, region, tax and packaging affect comparability. Unknown billing commitments and phased effective dates remain null. Publisher articles are linked; factual evidence is included without republishing full articles.