# okhttp parent-5.4.0

- Product: okhttp (https://whatsnew.fyi/product/okhttp)
- Vendor: lysine-dev
- Date: 2026-06-08
- Original notes: https://github.com/lysine-dev/okhttp/releases/tag/parent-5.4.0
- Permalink: https://whatsnew.fyi/product/okhttp/releases/2026-06-08-parent-5.4.0
- Labels: Machine-generated from commit messages — the vendor published no release notes

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** — Call.addEventListener for monitoring HTTP call events.
- **added** — OkHttpClient overrides in Interceptor.
- **fixed** — Handle UnreadableResponseBody in HttpLoggingInterceptor.
- **fixed** — Various test flakes in TrailersTest, platformTrustedCertificates, FakeDns, and RouteFailureTest.
- **fixed** — CacheTest and ServerTruncatesRequestTest failures on Windows.
- **fixed** — Configuration cache issues and build compatibility.
- **changed** — Split RecordingEventListener into two components.
- **removed** — Relay deleted.
- **changed** — Adopt full modern Gradle build with decoupled convention plugins and Gradle Configuration Cache enabled.