diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index abbee2a6..ea2923d0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.11", "3.12", "3.13", "3.14", "3.15"]
 
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -188,7 +188,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.11", "3.12", "3.13", "3.14", "3.15"]
 
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
diff --git a/.github/workflows/manual-publish.yml b/.github/workflows/manual-publish.yml
index 50769fcb..99af06e5 100644
--- a/.github/workflows/manual-publish.yml
+++ b/.github/workflows/manual-publish.yml
@@ -21,7 +21,7 @@ jobs:
       - name: Set up uv
         uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
         with:
-          python-version: "3.10"
+          python-version: "3.11"
 
       - uses: launchdarkly/gh-actions/actions/release-secrets@release-secrets-v1
         name: "Get PyPI token"
diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index cbb1027d..8e095283 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -25,7 +25,7 @@ jobs:
         if: ${{ steps.release.outputs.releases_created == 'true' }}
         uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
         with:
-          python-version: "3.10"
+          python-version: "3.11"
 
       - uses: launchdarkly/gh-actions/actions/release-secrets@release-secrets-v1
         if: ${{ steps.release.outputs.releases_created == 'true' }}
diff --git a/README.md b/README.md
index 952e0ece..0e6994d6 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 
 ## Supported Python versions
 
-This version of the LaunchDarkly SDK is compatible with Python 3.10+.
+This version of the LaunchDarkly SDK is compatible with Python 3.11+.
 
 ## Getting started
 
diff --git a/pyproject.toml b/pyproject.toml
index 08580dec..e1c7a982 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,17 +7,17 @@ authors = [
 ]
 license = "Apache-2.0"
 readme = "README.md"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 classifiers = [
     "Intended Audience :: Developers",
     "License :: OSI Approved :: Apache Software License",
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: 3.15",
     "Topic :: Software Development",
     "Topic :: Software Development :: Libraries",
 ]
@@ -81,7 +81,7 @@ docs = [
 ]
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.11"
 ignore_missing_imports = true
 
 [tool.isort]