diff --git a/.github/workflows/publish_wheels.yml b/.github/workflows/publish_wheels.yml
index f2476a0..ed9a3ac 100644
--- a/.github/workflows/publish_wheels.yml
+++ b/.github/workflows/publish_wheels.yml
@@ -67,13 +67,16 @@ jobs:
 
       - name: Build wheels
         env:
-          CIBW_BUILD: "cp311-* cp312-* cp313-*"
+          CIBW_BUILD: "cp311-* cp312-* cp313-* cp314-*"
           CIBW_BUILD_VERBOSITY: "1"
           CIBW_SKIP: "*-musllinux_*"
           CIBW_ARCHS_LINUX: "x86_64"
           CIBW_ARCHS_MACOS: ${{ matrix.os == 'macos-15-intel' && 'x86_64' || matrix.os == 'macos-14' && 'arm64' || 'x86_64 arm64' }}
           CIBW_ARCHS_WINDOWS: "AMD64"
           CIBW_BEFORE_ALL_LINUX: "yum -y install gcc-gfortran"
+          CIBW_TEST_REQUIRES: "pytest"
+          CIBW_TEST_COMMAND: "pytest {project}/source/bind/python/tests -m smoke"
+          CIBW_TEST_ENVIRONMENT: "CEA_DATA_DIR={project}/data"
           CIBW_ENVIRONMENT_MACOS: ${{ matrix.os == 'macos-14' && 'FC=gfortran-14 MACOSX_DEPLOYMENT_TARGET=14.0' || 'FC=gfortran-14 MACOSX_DEPLOYMENT_TARGET=15.0' }}
           CIBW_ENVIRONMENT_WINDOWS: "FC=ifx CC=icx CXX=icx"
           CMAKE_ARGS: "-DCEA_BUILD_TESTING=OFF"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a4d7440..f3153a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@ All notable user-visible changes to this project are documented here.
 
 ## [Unreleased]
 
+### Changed
+
+### Fixed
+
+### Added
+
+## [3.1.1] - 2026-03-18
+
 ### Changed
 - Python `Mixture` input validation now accepts `str` and `cea.Reactant` entries (including mixed lists) and no longer accepts raw `bytes` species names (`#53`).
 - Added SI-focused custom-reactant handling at the Python API layer: `Reactant.temperature` is specified in K and `Reactant.enthalpy` in J/kg (converted internally for core input) (`#53`).
@@ -21,9 +29,7 @@ All notable user-visible changes to this project are documented here.
 
 ### Added
 - Added C and Python support for custom reactant data (including species not present in `thermo.lib`) in parity with the main interface workflow used by RP-1311 Example 5 (`#53`).
-- Added new C-API constructors for generating product mixtures from input-reactant payloads:
-  - `cea_mixture_create_products_from_input_reactants` (`#53`).
-  - `cea_mixture_create_products_from_input_reactants_w_ions` (`#53`).
+- Added new C-API constructors for generating product mixtures from input-reactant payloads: `cea_mixture_create_products_from_input_reactants` and `cea_mixture_create_products_from_input_reactants_w_ions` (`#53`).
 - Added a shared bindc parser path for `cea_reactant_input -> ReactantInput` conversion to reduce duplicated C-binding logic (`#53`).
 - Added Python `cea.Reactant` and mixed-input `Mixture(...)` support in the Cython binding (`#53`).
 - Added shock regression coverage for transport output population across equilibrium/frozen branches and for singular-recovery reflected-shock cases.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 570bb1e..e736458 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
 set(CMAKE_DISABLE_SOURCE_CHANGES ON)
 set(CMAKE_DISABLE_IN_SOURCE_BUILD ON)
 project(CEA
-    VERSION 3.1.0
+    VERSION 3.1.1
     LANGUAGES Fortran
 )
 
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 25e6237..1d60b15 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -22,7 +22,7 @@
 copyright = ''
 author = 'Mark Leader'
 version = '3.1'
-release = '3.1.0'
+release = '3.1.1'
 
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
diff --git a/source/bind/python/cea/__init__.py b/source/bind/python/cea/__init__.py
index 7cee8fc..aca8492 100644
--- a/source/bind/python/cea/__init__.py
+++ b/source/bind/python/cea/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "3.1.0"
+__version__ = "3.1.1"
 
 # initialize libcea, loading in the default data files
 from cea.lib.libcea import init as libcea_init