# What changed in @vvo/tzdb

> 5 changes in @vvo/tzdb 6 from its official release notes, upgrade guides and advisories: 1 breaking, 2 new APIs and options. Each one cited. Sources checked 2026-10-20. HTML: https://unstale.sh/npm/@vvo/tzdb/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## @vvo/tzdb 6

### Breaking changes

- The package’s time zone data is automatically updated, which may change results that depend on it. (6.191.0) — [release notes](https://github.com/vvo/tzdb/releases/tag/v6.191.0)

### New APIs and options

- getTimeZones accepts a date and computes time-zone offsets at that date. (6.201.0) — [release notes](https://github.com/vvo/tzdb/releases/tag/v6.201.0)
- getCountryCode returns the country for any time zone name. (6.200.0) — [release notes](https://github.com/vvo/tzdb/releases/tag/v6.200.0)

### Behavior and default changes

- Time zone data is read from IANA and automatically updated, which may change the time zone information your application uses. (6.188.0) — [release notes](https://github.com/vvo/tzdb/releases/tag/v6.199.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.198.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.197.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.196.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.195.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.194.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.193.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.192.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.190.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.189.0), [release notes](https://github.com/vvo/tzdb/releases/tag/v6.188.0)

### Fixes and other changes

- Keeps zones apart for a year after they change their rules. (6.201.1) — [release notes](https://github.com/vvo/tzdb/releases/tag/v6.201.1)