diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb6e9f2..6a7f341 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ All notable changes to the OilPriceAPI Python SDK will be documented in this fil
 
 ## [Unreleased]
 
+## [1.15.0] - 2026-09-13
+
 ### Fixed
 
 - **Energy Intelligence collection methods now return the collection they
diff --git a/oilpriceapi/version.py b/oilpriceapi/version.py
index 362ad16..e59b58e 100644
--- a/oilpriceapi/version.py
+++ b/oilpriceapi/version.py
@@ -5,6 +5,6 @@
 Used in __init__.py, client.py, and async_client.py.
 """
 
-__version__ = "1.14.0"
+__version__ = "1.15.0"
 SDK_VERSION = __version__
 SDK_NAME = "oilpriceapi-python"
diff --git a/pyproject.toml b/pyproject.toml
index 5ce2a9c..96dd1d6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "oilpriceapi"
-version = "1.14.0"
+version = "1.15.0"
 description = "Official Python SDK for source-timestamped OilPriceAPI energy data"
 authors = [
     {name = "OilPriceAPI", email = "support@oilpriceapi.com"}