From 530fcabfc311f7c3e55b5fa832e1999873a26651 Mon Sep 17 00:00:00 2001
From: Sydney Runkle <54324534+sydney-runkle@users.noreply.github.com>
Date: Fri, 1 May 2026 11:18:52 -0400
Subject: [PATCH] release: alpha bump (a3) for langgraph, checkpoint,
 checkpoint-postgres (#7678)
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## Summary
- Bumps `langgraph` 1.2.0a1 → 1.2.0a3
- Bumps `langgraph-checkpoint` 4.1.0a1 → 4.1.0a3
- Bumps `langgraph-checkpoint-postgres` 3.1.0a1 → 3.1.0a3
- Bumps min `langgraph-checkpoint` constraint in `langgraph` to
`>=4.1.0a3`
- Refreshes uv locks across the workspace

(Note: `a2` was already cut from another branch.)

## Test plan
- [ ] CI passes
---
 libs/checkpoint-postgres/pyproject.toml | 4 ++--
 libs/checkpoint-postgres/uv.lock        | 4 ++--
 libs/checkpoint-sqlite/uv.lock          | 2 +-
 libs/checkpoint/pyproject.toml          | 2 +-
 libs/checkpoint/uv.lock                 | 2 +-
 libs/langgraph/pyproject.toml           | 4 ++--
 libs/langgraph/uv.lock                  | 6 +++---
 libs/prebuilt/uv.lock                   | 6 +++---
 libs/sdk-py/uv.lock                     | 4 ++--
 9 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/libs/checkpoint-postgres/pyproject.toml b/libs/checkpoint-postgres/pyproject.toml
index ef2b7868b..25f201501 100644
--- a/libs/checkpoint-postgres/pyproject.toml
+++ b/libs/checkpoint-postgres/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph-checkpoint-postgres"
-version = "3.1.0a1"
+version = "3.1.0a3"
 description = "Library with a Postgres implementation of LangGraph checkpoint saver."
 authors = []
 requires-python = ">=3.10"
@@ -12,7 +12,7 @@ readme = "README.md"
 license = "MIT"
 license-files = ['LICENSE']
 dependencies = [
-  "langgraph-checkpoint>=4.1.0a1,<5.0.0",
+  "langgraph-checkpoint>=4.1.0a3,<5.0.0",
   "orjson>=3.11.5",
   "psycopg>=3.2.0",
   "psycopg-pool>=3.2.0",
diff --git a/libs/checkpoint-postgres/uv.lock b/libs/checkpoint-postgres/uv.lock
index 61d63a50f..c7d57d159 100644
--- a/libs/checkpoint-postgres/uv.lock
+++ b/libs/checkpoint-postgres/uv.lock
@@ -259,7 +259,7 @@ wheels = [
 
 [[package]]
 name = "langgraph-checkpoint"
-version = "4.1.0a1"
+version = "4.1.0a3"
 source = { editable = "../checkpoint" }
 dependencies = [
     { name = "langchain-core" },
@@ -307,7 +307,7 @@ test = [
 
 [[package]]
 name = "langgraph-checkpoint-postgres"
-version = "3.1.0a1"
+version = "3.1.0a3"
 source = { editable = "." }
 dependencies = [
     { name = "langgraph-checkpoint" },
diff --git a/libs/checkpoint-sqlite/uv.lock b/libs/checkpoint-sqlite/uv.lock
index 22d1931fb..1c8b739db 100644
--- a/libs/checkpoint-sqlite/uv.lock
+++ b/libs/checkpoint-sqlite/uv.lock
@@ -268,7 +268,7 @@ wheels = [
 
 [[package]]
 name = "langgraph-checkpoint"
-version = "4.1.0a1"
+version = "4.1.0a3"
 source = { editable = "../checkpoint" }
 dependencies = [
     { name = "langchain-core" },
diff --git a/libs/checkpoint/pyproject.toml b/libs/checkpoint/pyproject.toml
index 2057681f5..9788ad61a 100644
--- a/libs/checkpoint/pyproject.toml
+++ b/libs/checkpoint/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph-checkpoint"
-version = "4.1.0a1"
+version = "4.1.0a3"
 description = "Library with base interfaces for LangGraph checkpoint savers."
 authors = []
 requires-python = ">=3.10"
diff --git a/libs/checkpoint/uv.lock b/libs/checkpoint/uv.lock
index 8992d34d5..93be00f3b 100644
--- a/libs/checkpoint/uv.lock
+++ b/libs/checkpoint/uv.lock
@@ -286,7 +286,7 @@ wheels = [
 
 [[package]]
 name = "langgraph-checkpoint"
-version = "4.1.0a1"
+version = "4.1.0a3"
 source = { editable = "." }
 dependencies = [
     { name = "langchain-core" },
diff --git a/libs/langgraph/pyproject.toml b/libs/langgraph/pyproject.toml
index 8d23f4418..75577def3 100644
--- a/libs/langgraph/pyproject.toml
+++ b/libs/langgraph/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph"
-version = "1.2.0a1"
+version = "1.2.0a3"
 description = "Building stateful, multi-actor applications with LLMs"
 authors = []
 requires-python = ">=3.10"
@@ -25,7 +25,7 @@ classifiers = [
 ]
 dependencies = [
     "langchain-core>=1.3.2,<2",
-    "langgraph-checkpoint>=4.1.0a1,<5.0.0",
+    "langgraph-checkpoint>=4.1.0a3,<5.0.0",
     "langgraph-sdk>=0.3.0,<0.4.0",
     "langgraph-prebuilt>=1.0.12,<1.1.0",
     "xxhash>=3.5.0",
diff --git a/libs/langgraph/uv.lock b/libs/langgraph/uv.lock
index 054878b42..b462bf208 100644
--- a/libs/langgraph/uv.lock
+++ b/libs/langgraph/uv.lock
@@ -1380,7 +1380,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.2.0a1"
+version = "1.2.0a3"
 source = { editable = "." }
 dependencies = [
     { name = "langchain-core" },
@@ -1561,7 +1561,7 @@ wheels = [
 
 [[package]]
 name = "langgraph-checkpoint"
-version = "4.1.0a1"
+version = "4.1.0a3"
 source = { editable = "../checkpoint" }
 dependencies = [
     { name = "langchain-core" },
@@ -1609,7 +1609,7 @@ test = [
 
 [[package]]
 name = "langgraph-checkpoint-postgres"
-version = "3.1.0a1"
+version = "3.1.0a3"
 source = { editable = "../checkpoint-postgres" }
 dependencies = [
     { name = "langgraph-checkpoint" },
diff --git a/libs/prebuilt/uv.lock b/libs/prebuilt/uv.lock
index 1a6cbd2f5..172fd7c28 100644
--- a/libs/prebuilt/uv.lock
+++ b/libs/prebuilt/uv.lock
@@ -281,7 +281,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.2.0a1"
+version = "1.2.0a3"
 source = { editable = "../langgraph" }
 dependencies = [
     { name = "langchain-core" },
@@ -365,7 +365,7 @@ test = [
 
 [[package]]
 name = "langgraph-checkpoint"
-version = "4.1.0a1"
+version = "4.1.0a3"
 source = { editable = "../checkpoint" }
 dependencies = [
     { name = "langchain-core" },
@@ -413,7 +413,7 @@ test = [
 
 [[package]]
 name = "langgraph-checkpoint-postgres"
-version = "3.1.0a1"
+version = "3.1.0a3"
 source = { editable = "../checkpoint-postgres" }
 dependencies = [
     { name = "langgraph-checkpoint" },
diff --git a/libs/sdk-py/uv.lock b/libs/sdk-py/uv.lock
index 87349cd4e..1e63fe6ac 100644
--- a/libs/sdk-py/uv.lock
+++ b/libs/sdk-py/uv.lock
@@ -298,7 +298,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.2.0a1"
+version = "1.2.0a3"
 source = { editable = "../langgraph" }
 dependencies = [
     { name = "langchain-core" },
@@ -382,7 +382,7 @@ test = [
 
 [[package]]
 name = "langgraph-checkpoint"
-version = "4.1.0a1"
+version = "4.1.0a3"
 source = { editable = "../checkpoint" }
 dependencies = [
     { name = "langchain-core" },