# Starlette 1.5.0 — Version 1.5.0

- Product: Starlette (https://whatsnew.fyi/product/starlette)
- Vendor: Encode
- Date: 2026-08-08
- Version: 1.5.0
- Original notes: https://github.com/Kludex/starlette/releases/tag/1.5.0
- Permalink: https://whatsnew.fyi/product/starlette/releases/1.5.0

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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- **added** — Add exclude_content_types parameter to GZipMiddleware
- **changed** — Flush GZip output for each streamed chunk
- **changed** — Skip compression of partial responses in GZipMiddleware
- **changed** — Expand default excluded content types in GZipMiddleware

This release is all about giving `GZipMiddleware` some love. 🗜️

##### What's Changed

* Add `exclude_content_types` parameter to `GZipMiddleware` by @Kludex in https://github.com/encode/starlette/pull/3418
* Flush GZip output for each streamed chunk by @Kludex in https://github.com/encode/starlette/pull/3419
* Skip compression of partial responses in `GZipMiddleware` by @Kludex in https://github.com/encode/starlette/pull/3420
* Expand default excluded content types in `GZipMiddleware` by @Kludex in https://github.com/encode/starlette/pull/3421

**Full Changelog**: https://github.com/encode/starlette/compare/1.4.1...1.5.0