> For AI agents: the complete documentation index is available at https://open-spaced-repetition.github.io/ts-fsrs/llms.txt, the full documentation bundle is available at https://open-spaced-repetition.github.io/ts-fsrs/llms-full.txt.

# ts-fsrs 5.3.0

Published: 2026-03-19 11:10:25 UTC

<div class="release-update-links">

[npmx](https://npmx.dev/package/ts-fsrs/v/5.3.0) · [GitHub Release](https://github.com/open-spaced-repetition/ts-fsrs/releases/tag/v5.3.0)

</div>

[All updates](https://open-spaced-repetition.github.io/ts-fsrs/updates/index.md)

### Minor Changes

- [#266](https://github.com/open-spaced-repetition/ts-fsrs/pull/266) [`17fb34d`](https://github.com/open-spaced-repetition/ts-fsrs/commit/17fb34d849c66f2035c5a239e2dfd64ed40055c9) Thanks [@ishiko732](https://github.com/ishiko732)! - Non-decreasing SInc(Hard) in same-day reviews — sync with fsrs-rs#376 changes

### Patch Changes

- [#314](https://github.com/open-spaced-repetition/ts-fsrs/pull/314) [`87f94f2`](https://github.com/open-spaced-repetition/ts-fsrs/commit/87f94f277f7030a449490cef943e1aebe1585b64) Thanks [@user1823](https://github.com/user1823)! - Performance improvements

> Older entries below were imported from GitHub Releases and preserve the original release-note wording where practical.