Limit anthropic provider to anthropic SDK below 1.0.0

providers/anthropic/README.rst

@@ -52,13 +52,13 @@ The package supports the following python versions: 3.10,3.11,3.12,3.13,3.14
 Requirements
 ------------
 
-==========================================  ==================
+==========================================  ====================
 PIP package                                 Version required
-==========================================  ==================
+==========================================  ====================
 ``apache-airflow``                          ``>=3.0.0``
 ``apache-airflow-providers-common-compat``  ``>=1.12.0``
-``anthropic``                               ``>=0.121.0``
-==========================================  ==================
+``anthropic``                               ``>=0.121.0,<1.0.0``
+==========================================  ====================
 
 Optional dependencies
 ----------------------

providers/anthropic/docs/index.rst

@@ -133,13 +133,13 @@ Requirements
 
 The minimum Apache Airflow version supported by this provider distribution is ``3.0.0``.
 
-==========================================  ==================
+==========================================  ====================
 PIP package                                 Version required
-==========================================  ==================
+==========================================  ====================
 ``apache-airflow``                          ``>=3.0.0``
 ``apache-airflow-providers-common-compat``  ``>=1.12.0``
-``anthropic``                               ``>=0.121.0``
-==========================================  ==================
+``anthropic``                               ``>=0.121.0,<1.0.0``
+==========================================  ====================
 
 Optional dependencies
 ---------------------
@@ -152,13 +152,13 @@ Install them when installing from PyPI. For example:
     pip install apache-airflow-providers-anthropic[bedrock]
 
 
-===========  ===============================
+===========  ======================================
 Extra        Dependencies
-===========  ===============================
-``bedrock``  ``anthropic[bedrock]>=0.121.0``
-``vertex``   ``anthropic[vertex]>=0.121.0``
-``aws``      ``anthropic[aws]>=0.121.0``
-===========  ===============================
+===========  ======================================
+``bedrock``  ``anthropic[bedrock]>=0.121.0,<1.0.0``
+``vertex``   ``anthropic[vertex]>=0.121.0,<1.0.0``
+``aws``      ``anthropic[aws]>=0.121.0,<1.0.0``
+===========  ======================================
 
 Downloading official packages
 -----------------------------

providers/anthropic/pyproject.toml

@@ -66,15 +66,19 @@ dependencies = [
     # reason happens to work further back -- older clients mis-build the discriminated
     # union into the wrong variant class while preserving ``.type`` -- but only with
     # response validation left non-strict, so it is not something to depend on.
-    "anthropic>=0.121.0",
+    # anthropic 1.0.0 replaces httpx with httpx2 and is a major release the provider
+    # has not been validated against. Remove the <1.0.0 cap (here and in the extras
+    # below) after migrating to the 1.x SDK;
+    # tracked at https://github.com/apache/airflow/issues/72071
+    "anthropic>=0.121.0,<1.0.0",
 ]
 
 # The optional dependencies should be modified in place in the generated file
 # Any change in the dependencies is preserved when the file is regenerated
 [project.optional-dependencies]
-"bedrock" = ["anthropic[bedrock]>=0.121.0"]
-"vertex" = ["anthropic[vertex]>=0.121.0"]
-"aws" = ["anthropic[aws]>=0.121.0"]
+"bedrock" = ["anthropic[bedrock]>=0.121.0,<1.0.0"]
+"vertex" = ["anthropic[vertex]>=0.121.0,<1.0.0"]
+"aws" = ["anthropic[aws]>=0.121.0,<1.0.0"]
 
 [dependency-groups]
 dev = [