chore(main): release arize-phoenix-client 3.4.0

.release-please-manifest.json

@@ -1 +1 @@
-{".":"20.4.0","packages/phoenix-evals":"3.5.1","packages/phoenix-otel":"0.17.1","packages/phoenix-client":"3.3.0","packages/phoenix-sqlean":"0.1.1"}
+{".":"20.4.0","packages/phoenix-evals":"3.5.1","packages/phoenix-otel":"0.17.1","packages/phoenix-client":"3.4.0","packages/phoenix-sqlean":"0.1.1"}

packages/phoenix-client/CHANGELOG.md

@@ -1,5 +1,37 @@
 # Changelog
 
+## [3.4.0](https://github.com/Arize-ai/phoenix/compare/arize-phoenix-client-v3.3.0...arize-phoenix-client-v3.4.0) (2026-08-29)
+
+
+### ⚠ BREAKING CHANGES
+
+* **server:** GET /v1/model_providers no longer returns custom providers or a `next_cursor`, and built-in entries expose `provider` rather than `kind` + `provider_key`. Custom providers move to GET /v1/custom_model_providers. The endpoint is unreleased, so no published client is affected.
+
+### Features
+
+* **client:** add prompt deletion ([#15736](https://github.com/Arize-ai/phoenix/issues/15736)) ([5610755](https://github.com/Arize-ai/phoenix/commit/5610755353a1c05a90868232de22995942653085))
+* **client:** record Harbor jobs in Phoenix ([#15547](https://github.com/Arize-ai/phoenix/issues/15547)) ([f7c6cb3](https://github.com/Arize-ai/phoenix/commit/f7c6cb3bee3b3d4447ac649aa54022ce2d157a70))
+* **client:** record Harbor rewards as Phoenix evaluations ([#15600](https://github.com/Arize-ai/phoenix/issues/15600)) ([822d7cb](https://github.com/Arize-ai/phoenix/commit/822d7cbb6ee605e4aaf663410f801f6949e15298))
+* **prompts:** add REST prompt version creation ([#13846](https://github.com/Arize-ai/phoenix/issues/13846)) ([dbf15e9](https://github.com/Arize-ai/phoenix/commit/dbf15e93922bb62c99cce56e6bfe94e8e5590701))
+* **server:** add GET /model_providers REST endpoint ([#15561](https://github.com/Arize-ai/phoenix/issues/15561)) ([59c247a](https://github.com/Arize-ai/phoenix/commit/59c247a19f868f157da511b1feca0338adef28e3))
+* **server:** add PATCH /projects/{project_identifier}/retention ([#15410](https://github.com/Arize-ai/phoenix/issues/15410)) ([8ffd938](https://github.com/Arize-ai/phoenix/commit/8ffd9389946a3a7a54f476f17fc3b20efa3260d3))
+
+
+### Bug Fixes
+
+* **atif:** link system subagents to emitted parent spans ([#15585](https://github.com/Arize-ai/phoenix/issues/15585)) ([22ee343](https://github.com/Arize-ai/phoenix/commit/22ee34342f2264c1f9fa5053464dfdc36843d9e4))
+* upgrade to anthropic SDK v1 ([#15588](https://github.com/Arize-ai/phoenix/issues/15588)) ([b28cf94](https://github.com/Arize-ai/phoenix/commit/b28cf94fcd37afeacfd059b4a01e7ad38327e483))
+
+
+### Performance Improvements
+
+* **agents:** make the system prompt static and move UI state onto the turn ([#15541](https://github.com/Arize-ai/phoenix/issues/15541)) ([31fafc5](https://github.com/Arize-ai/phoenix/commit/31fafc5fee359b038fcd75c515584a40fcfa2ea8))
+
+
+### Miscellaneous Chores
+
+* release arize-phoenix-client 3.4.0 ([f8561dc](https://github.com/Arize-ai/phoenix/commit/f8561dc165fb83acd58abd33642d1e12e1b71ef2))
+
 ## [3.3.0](https://github.com/Arize-ai/phoenix/compare/arize-phoenix-client-v3.2.0...arize-phoenix-client-v3.3.0) (2026-08-22)
 
 

packages/phoenix-client/pyproject.toml

@@ -21,7 +21,7 @@ classifiers = [
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
 ]
-version = "3.3.0"
+version = "3.4.0"
 dependencies = [
   "httpx",
   "tqdm",