diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 575b5dc0..a805242a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,7 +49,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+                python-version: ['3.10', '3.11', '3.12', '3.13']
 
         steps:
             - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 14f6f65e..3fd6d30d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,17 @@
+# 7.0.0 - 2025-11-11
+
+NB Python 3.9 is no longer supported
+
+- chore(llma): update LLM provider SDKs to latest major versions
+  - openai: 1.102.0 → 2.7.1
+  - anthropic: 0.64.0 → 0.72.0
+  - google-genai: 1.32.0 → 1.49.0
+  - langchain-core: 0.3.75 → 1.0.3
+  - langchain-openai: 0.3.32 → 1.0.2
+  - langchain-anthropic: 0.3.19 → 1.0.1
+  - langchain-community: 0.3.29 → 0.4.1
+  - langgraph: 0.6.6 → 1.0.2
+
 # 6.9.3 - 2025-11-10
 
 - feat(ph-ai): PostHog properties dict in GenerationMetadata
diff --git a/README.md b/README.md
index ffdb6af3..36fa6969 100644
--- a/README.md
+++ b/README.md
@@ -30,8 +30,8 @@ We recommend using [uv](https://docs.astral.sh/uv/). It's super fast.
 ## PostHog recommends `uv` so...
 
 ```bash
-uv python install 3.9.19
-uv python pin 3.9.19
+uv python install 3.12
+uv python pin 3.12
 uv venv
 source env/bin/activate
 uv sync --extra dev --extra test
diff --git a/posthog/ai/langchain/callbacks.py b/posthog/ai/langchain/callbacks.py
index 9a2d16d9..68840a63 100644
--- a/posthog/ai/langchain/callbacks.py
+++ b/posthog/ai/langchain/callbacks.py
@@ -1,8 +1,8 @@
 try:
-    import langchain  # noqa: F401
+    import langchain_core  # noqa: F401
 except ImportError:
     raise ModuleNotFoundError(
-        "Please install LangChain to use this feature: 'pip install langchain'"
+        "Please install LangChain to use this feature: 'pip install langchain-core'"
     )
 
 import json
diff --git a/posthog/test/ai/langchain/__init__.py b/posthog/test/ai/langchain/__init__.py
index 00f6a7cf..a7a40c96 100644
--- a/posthog/test/ai/langchain/__init__.py
+++ b/posthog/test/ai/langchain/__init__.py
@@ -1,5 +1,5 @@
 import pytest
 
-pytest.importorskip("langchain")
+pytest.importorskip("langchain_core")
 pytest.importorskip("langchain_community")
 pytest.importorskip("langgraph")
diff --git a/posthog/test/ai/langchain/test_callbacks.py b/posthog/test/ai/langchain/test_callbacks.py
index 632f8441..b9538532 100644
--- a/posthog/test/ai/langchain/test_callbacks.py
+++ b/posthog/test/ai/langchain/test_callbacks.py
@@ -1125,9 +1125,9 @@ def test_anthropic_chain(mock_client):
     )
     chain = prompt | ChatAnthropic(
         api_key=ANTHROPIC_API_KEY,
-        model="claude-3-opus-20240229",
+        model="claude-sonnet-4-5-20250929",
         temperature=0,
-        max_tokens=1,
+        max_tokens=1024,
     )
     callbacks = CallbackHandler(
         mock_client,
@@ -1150,12 +1150,12 @@ def test_anthropic_chain(mock_client):
     assert gen_args["event"] == "$ai_generation"
     assert gen_props["$ai_trace_id"] == "test-trace-id"
     assert gen_props["$ai_provider"] == "anthropic"
-    assert gen_props["$ai_model"] == "claude-3-opus-20240229"
+    assert gen_props["$ai_model"] == "claude-sonnet-4-5-20250929"
     assert gen_props["foo"] == "bar"
 
     assert gen_props["$ai_model_parameters"] == {
         "temperature": 0.0,
-        "max_tokens": 1,
+        "max_tokens": 1024,
         "streaming": False,
     }
     assert gen_props["$ai_input"] == [
@@ -1171,7 +1171,7 @@ def test_anthropic_chain(mock_client):
         <= approximate_latency
     )
     assert gen_props["$ai_input_tokens"] == 17
-    assert gen_props["$ai_output_tokens"] == 1
+    assert gen_props["$ai_output_tokens"] == 4
 
     assert trace_args["event"] == "$ai_trace"
     assert trace_props["$ai_input_state"] == {}
@@ -1188,9 +1188,9 @@ async def test_async_anthropic_streaming(mock_client):
     )
     chain = prompt | ChatAnthropic(
         api_key=ANTHROPIC_API_KEY,
-        model="claude-3-opus-20240229",
+        model="claude-sonnet-4-5-20250929",
         temperature=0,
-        max_tokens=1,
+        max_tokens=1024,
         streaming=True,
         stream_usage=True,
     )
diff --git a/posthog/version.py b/posthog/version.py
index b5fdd4f3..b2db8f69 100644
--- a/posthog/version.py
+++ b/posthog/version.py
@@ -1,4 +1,4 @@
-VERSION = "6.9.3"
+VERSION = "7.0.0"
 
 if __name__ == "__main__":
     print(VERSION, end="")  # noqa: T201
diff --git a/pyproject.toml b/pyproject.toml
index 01bb8eb9..5c05af92 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,14 +10,13 @@ authors = [{ name = "PostHog", email = "hey@posthog.com" }]
 maintainers = [{ name = "PostHog", email = "hey@posthog.com" }]
 license = { text = "MIT" }
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
     "Operating System :: OS Independent",
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -66,13 +65,13 @@ test = [
     "pytest-timeout",
     "pytest-asyncio",
     "django",
-    "openai",
-    "anthropic",
-    "langgraph>=0.4.8",
-    "langchain-core>=0.3.65",
-    "langchain-community>=0.3.25",
-    "langchain-openai>=0.3.22",
-    "langchain-anthropic>=0.3.15",
+    "openai>=2.0",
+    "anthropic>=0.72",
+    "langgraph>=1.0",
+    "langchain-core>=1.0",
+    "langchain-community>=0.4",
+    "langchain-openai>=1.0",
+    "langchain-anthropic>=1.0",
     "google-genai",
     "pydantic",
     "parameterized>=0.8.1",
diff --git a/setup.py b/setup.py
index b24452de..ee62a9e3 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 PostHog is developer-friendly, self-hosted product analytics.
 posthog-python is the python package.
 
-This package requires Python 3.9 or higher.
+This package requires Python 3.10 or higher.
 """
 
 # Minimal setup.py for backward compatibility
diff --git a/setup_analytics.py b/setup_analytics.py
index 51ccdfb7..f4854180 100644
--- a/setup_analytics.py
+++ b/setup_analytics.py
@@ -47,7 +47,7 @@
 PostHog is developer-friendly, self-hosted product analytics.
 posthog-python is the python package.
 
-This package requires Python 3.9 or higher.
+This package requires Python 3.10 or higher.
 """
 
 # Minimal setup.py for backward compatibility