# date-fns v4.4.0

- Product: date-fns (https://whatsnew.fyi/product/date-fns)
- Vendor: date-fns
- Date: 2026-05-29
- Version: v4.4.0
- Original notes: https://github.com/date-fns/date-fns/releases/tag/v4.4.0
- Permalink: https://whatsnew.fyi/product/date-fns/releases/v4.4.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **deprecated** — The date-fns CDN scripts are now deprecated and will be removed in the next major release
- **removed** — Removed CDN source maps to reduce the package size
- **added** — Introduced new package @date-fns/cdn for CDN usage

This release revisits the approach to CDN usage and introduces a new package, `@date-fns/cdn` and deprecates the `date-fns` CDN scripts. It allowed reducing the zipped package size from `5.83 MB` down to `3.96 MB` without introducing any breaking changes.

In `v5.0.0-alpha.0` where CDN scripts are completely removed from `date-fns` the change is more significant and brings the zipped package size down to `2.89 MB`.

It is just the first step in optimizing the package size. Expect further size reduction in the future v4 and v5 versions.

###### Changed

- **DEPRECATED**: The `date-fns` CDN scripts are now deprecated and will be removed in the next major release. Please switch to the new `@date-fns/cdn` package for CDN usage.

- Removed CDN source maps to reduce the package size. If you rely on them, please switch to the new `@date-fns/cdn` package that still includes them.