A changelog of verified official facts: UK tax and National Insurance thresholds, exam specifications, and official vehicle datasets (French RappelConso recalls, Japanese MLIT recalls and complaints), plus central-bank policy rates (Bank of England, Fed, ECB). Each entry records what changed (from → to), when it took effect, the official source, the date it was verified, and a maintainer note. Entries are generated by scripts from committed data files and annotated by the maintainer — never written from memory. Coverage starts 2026-08-31.
Also available as RSS, Atom, JSON at /api/changes?since=YYYY-MM-DD, or over MCP: the what_changed_since tool at POST /api/mcp takes a date (an agent's training cutoff) and returns the entries after it.
First derivation of data/uk-inflation.json from the ONS time series D7G7 ("CPI ANNUAL RATE 00: ALL ITEMS 2015=100", dataset MM23): the UK CPI 12-month inflation rate, all items, 3.1% for August 2026 → 3.5% for September 2026, published by the ONS on 2026-10-21. The same series' calendar-year rates (2021 2.6, 2022 9.1, 2023 7.3, 2024 2.5, 2025 3.4) arrive as cpi/annual-average-<year> with no entry. Next ONS release: 2026-11-18.
First derivation of data/uk-inflation.json from the ONS time series D7BT ("CPI INDEX 00: ALL ITEMS 2015=100", dataset MM23): the UK CPI index level, all items, 2015=100, 143.6 for August 2026 → 144.1 for September 2026, published by the ONS on 2026-10-21. Next ONS release: 2026-11-18.
First derivation of data/uk-inflation.json from the ONS time series L55O ("CPIH ANNUAL RATE 00: ALL ITEMS 2015=100", dataset MM23): the UK CPIH (CPI including owner occupiers' housing costs) 12-month rate, all items, 3.3% for August 2026 → 3.6% for September 2026, published by the ONS on 2026-10-21. Next ONS release: 2026-11-18.