Reference snapshot updates and maintenance notes.
This page records user-facing source and workflow changes for UDataX. It helps teams understand what changed before relying on exported CSV or JSON data.
Postal records1,826,619121 countries in generated shards
Holiday rows8,546122 countries
Source groups3Listed with cadence and limitations
Recent updates
| Date | Area | Change |
|---|---|---|
| 2026-05-30 | Reference workflow readiness | Added contact, guides, correction policy, source update notes, cleaner sample download, review-row exports, and holiday date-boundary notes. |
| 2026-05-29 | Cloudflare Pages deployment | Generated postal shards and reference assets during build so Pages Functions can read source-backed data at runtime. |
| 2026-05-29 | Holiday snapshot expansion | Expanded generated Nager.Date holiday snapshots to cover 122 countries across available snapshot years. |
Refresh cadence
Postal data is reviewed monthly. Country and holiday snapshots are reviewed quarterly and after notable source changes. Build-time shard generation keeps deployed assets aligned with the committed source snapshots.
Report an issue
Send a page URL, input value, expected result, observed result, and public source link. Accepted corrections are queued for the next applicable refresh.