# Prefect 3.8.4.dev3 — 3.8.4.dev3: Nightly Development Release

- Product: Prefect (https://whatsnew.fyi/product/prefect)
- Vendor: Prefect
- Date: 2026-08-19
- Version: 3.8.4.dev3
- Original notes: https://github.com/PrefectHQ/prefect/releases/tag/3.8.4.dev3
- Permalink: https://whatsnew.fyi/product/prefect/releases/3.8.4.dev3
- Labels: Pre-release

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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- **added** — Add time selection to the interval schedule anchor date
- **fixed** — Honor a prefetch_seconds of 0 in BaseWorker

<!-- Release notes generated using configuration in .github/release.yml at main -->

##### What's Changed
###### Enhancements ➕➕
* Add time selection to the interval schedule anchor date by @devin-ai-integration[bot] in https://github.com/PrefectHQ/prefect/pull/22872
###### Development & Tidiness 🧹
* Fix flaky e2e test: scope deployment name assertion to breadcrumb in runs tab test by @devin-ai-integration[bot] in https://github.com/PrefectHQ/prefect/pull/22878
###### Uncategorized
* chore(deps): Update github/codeql-action action to v4.37.6 by @prefect-renovate[bot] in https://github.com/PrefectHQ/prefect/pull/22850
* docs: drop Args entries for parameters that do not exist by @muhzuhaib in https://github.com/PrefectHQ/prefect/pull/22843
* Honor a prefetch_seconds of 0 in BaseWorker by @ckarnell in https://github.com/PrefectHQ/prefect/pull/22836
* chore(deps): Update npm dependencies by @prefect-renovate[bot] in https://github.com/PrefectHQ/prefect/pull/22851

##### New Contributors
* @muhzuhaib made their first contribution in https://github.com/PrefectHQ/prefect/pull/22843

**Full Changelog**: https://github.com/PrefectHQ/prefect/compare/3.8.4.dev2...3.8.4.dev3