diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 23e4853217..d474a18b94 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -92,10 +92,10 @@ jobs:
             conda-version: 25.11.0
             test-type: parallel
           # maximum Python/conda combo
-          - python-version: '3.13'
+          - python-version: '3.14'
             conda-version: canary
             test-type: serial
-          - python-version: '3.13'
+          - python-version: '3.14'
             conda-version: canary
             test-type: parallel
     env:
@@ -217,7 +217,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.13']
+        python-version: ['3.14']
 
     steps:
       - name: Checkout Source
@@ -281,15 +281,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # test lower version (w/ stable conda) and upper version (w/ canary conda)
-        python-version: ['3.10']
-        conda-version: [release]
-        test-type: [serial, parallel]
         include:
-          - python-version: '3.13'
+          # test lower version (w/ stable conda)
+          - python-version: '3.10'
+            conda-version: release
+            test-type: serial
+          - python-version: '3.10'
+            conda-version: release
+            test-type: parallel
+          # upper version (w/ canary conda)
+          - python-version: '3.14'
             conda-version: canary
             test-type: serial
-          - python-version: '3.13'
+          - python-version: '3.14'
             conda-version: canary
             test-type: parallel
     env:
@@ -379,10 +383,7 @@ jobs:
     needs: changes
     if: github.event_name == 'schedule' || needs.changes.outputs.code == 'true'
 
-    # we still need intel macs so we are stuck on intel runners
-    # the issue is that there are recipes that depend on packages
-    # that do not exist for osx-arm64 - see #5388
-    runs-on: macos-15-intel
+    runs-on: ${{ matrix.runs-on }}
     defaults:
       run:
         # https://github.com/conda-incubator/setup-miniconda#use-a-default-shell
@@ -390,17 +391,25 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # test lower version (w/ stable conda) and upper version (w/ canary conda)
-        python-version: ['3.10']
-        conda-version: [release]
-        test-type: [serial, parallel]
         include:
-          - python-version: '3.13'
+          # test lower version (w/ osx-64 & stable conda)
+          - python-version: '3.10'
+            conda-version: release
+            test-type: serial
+            runs-on: macos-15-intel  # osx-64
+          - python-version: '3.10'
+            conda-version: release
+            test-type: parallel
+            runs-on: macos-15-intel  # osx-64
+          # upper version (w/ osx-arm64 & canary conda)
+          - python-version: '3.14'
             conda-version: canary
             test-type: serial
-          - python-version: '3.13'
+            runs-on: macos-latest  # osx-arm64
+          - python-version: '3.14'
             conda-version: canary
             test-type: parallel
+            runs-on: macos-latest  # osx-arm64
     env:
       # Use conda-forge for release tests since conda 25.11+ is not in defaults for osx-64
       CONDA_CHANNEL_LABEL: ${{ matrix.conda-version == 'canary' && 'conda-canary/label/dev' || 'conda-forge' }}
@@ -431,21 +440,25 @@ jobs:
 
       - name: SDK Download
         run: |
-          echo "MACOSX_SDK_DIR=${HOME}/macosx_sdks" >> "$GITHUB_ENV"
-          export MACOSX_SDK_DIR=${HOME}/macosx_sdks
-          echo "MACOSX_SDK_VERSION=10.15" >> "$GITHUB_ENV"
-          export MACOSX_SDK_VERSION=10.15
-          echo "MACOSX_SDK_ROOT=${MACOSX_SDK_DIR}/MacOSX${MACOSX_SDK_VERSION}.sdk" >> "$GITHUB_ENV"
-          export MACOSX_SDK_ROOT=${MACOSX_SDK_DIR}/MacOSX${MACOSX_SDK_VERSION}.sdk
-
-          if [ ! -d ${MACOSX_SDK_DIR} ]; then mkdir ${MACOSX_SDK_DIR}; fi
-          if [ ! -d ${MACOSX_SDK_ROOT} ]; then
-            url="https://github.com/phracker/MacOSX-SDKs/releases/download/11.3/MacOSX${MACOSX_SDK_VERSION}.sdk.tar.xz"
-            curl -L --output MacOSX${MACOSX_SDK_VERSION}.sdk.tar.xz "${url}"
-            sdk_sha256=ac75d9e0eb619881f5aa6240689fce862dcb8e123f710032b7409ff5f4c3d18b
-            echo "${sdk_sha256} *MacOSX${MACOSX_SDK_VERSION}.sdk.tar.xz" | shasum -a 256 -c
-            tar -xf MacOSX${MACOSX_SDK_VERSION}.sdk.tar.xz -C "${MACOSX_SDK_DIR}"
+          if [ "${{ matrix.runs-on }}" = "macos-latest" ]; then
+            MACOSX_SDK_ROOT="$(xcrun --sdk macosx --show-sdk-path)"
+          else
+            MACOSX_SDK_VERSION=10.15
+            MACOSX_SDK_SHA256=ac75d9e0eb619881f5aa6240689fce862dcb8e123f710032b7409ff5f4c3d18b
+
+            MACOSX_SDK_DIR="${HOME}/macosx_sdks"
+            if [ ! -d "${MACOSX_SDK_DIR}" ]; then mkdir "${MACOSX_SDK_DIR}"; fi
+
+            MACOSX_SDK_ROOT="${MACOSX_SDK_DIR}/MacOSX${MACOSX_SDK_VERSION}.sdk"
+            if [ ! -d "${MACOSX_SDK_ROOT}" ]; then
+              url="https://github.com/phracker/MacOSX-SDKs/releases/download/11.3/MacOSX${MACOSX_SDK_VERSION}.sdk.tar.xz"
+              curl -L --output "MacOSX${MACOSX_SDK_VERSION}.sdk.tar.xz" "${url}"
+
+              echo "${MACOSX_SDK_SHA256} *MacOSX${MACOSX_SDK_VERSION}.sdk.tar.xz" | shasum -a 256 -c
+              tar -xf "MacOSX${MACOSX_SDK_VERSION}.sdk.tar.xz" -C "${MACOSX_SDK_DIR}"
+            fi
           fi
+          echo "MACOSX_SDK_ROOT=${MACOSX_SDK_ROOT}" >> "$GITHUB_ENV"
 
       - name: Conda Install
         run: >
diff --git a/conda_build/skeletons/cpan.py b/conda_build/skeletons/cpan.py
index 4727f4fcf5..58c806493b 100644
--- a/conda_build/skeletons/cpan.py
+++ b/conda_build/skeletons/cpan.py
@@ -6,7 +6,6 @@
 
 from __future__ import annotations
 
-import codecs
 import gzip
 import hashlib
 import json
@@ -264,7 +263,8 @@ def get_cpan_api_url(url, colons):
                 output = output.decode("utf-8-sig")
             rel_dict = json.loads(output)
         except OSError:
-            rel_dict = json.loads(codecs.open(json_path, encoding="utf-8").read())
+            with open(json_path, encoding="utf-8") as fp:
+                rel_dict = json.load(fp)
         except CondaHTTPError:
             rel_dict = None
     return rel_dict
diff --git a/news/5941-python-314.md b/news/5941-python-314.md
new file mode 100644
index 0000000000..b80cc15a98
--- /dev/null
+++ b/news/5941-python-314.md
@@ -0,0 +1,19 @@
+### Enhancements
+
+* <news item>
+
+### Bug fixes
+
+* <news item>
+
+### Deprecations
+
+* <news item>
+
+### Docs
+
+* <news item>
+
+### Other
+
+* Add Python 3.13 to test matrix. (#5941)
diff --git a/recipe/conda_build_config.yaml b/recipe/conda_build_config.yaml
index 2aac1238b2..a7ee12f40c 100644
--- a/recipe/conda_build_config.yaml
+++ b/recipe/conda_build_config.yaml
@@ -3,3 +3,4 @@ python:
   - '3.11'
   - '3.12'
   - '3.13'
+  - '3.14'
diff --git a/tests/cli/test_main_build.py b/tests/cli/test_main_build.py
index 8977126662..fd59448374 100644
--- a/tests/cli/test_main_build.py
+++ b/tests/cli/test_main_build.py
@@ -8,6 +8,7 @@
 from typing import TYPE_CHECKING
 
 import pytest
+from conda.base.context import context
 from conda.exceptions import PackagesNotFoundError
 
 from conda_build import api
@@ -42,6 +43,10 @@ def test_build_empty_sections(conda_build_test_recipe_envvar: str):
 
 
 @pytest.mark.serial
+@pytest.mark.skipif(
+    context.subdir == "osx-arm64",
+    reason="conda_build_test channel does not support osx-arm64",
+)
 def test_build_add_channel():
     """This recipe requires the conda_build_test_requirement package, which is
     only on the conda_build_test channel. This verifies that the -c argument
@@ -459,6 +464,10 @@ def test_relative_path_test_artifact(
     main_build.execute(args)
 
 
+@pytest.mark.skipif(
+    context.subdir == "osx-arm64",
+    reason="imagesize<1.0 package not available on osx-arm64",
+)
 def test_test_extra_dep(testing_metadata):
     testing_metadata.meta["test"]["imports"] = ["imagesize"]
     api.output_yaml(testing_metadata, "meta.yaml")
diff --git a/tests/cli/test_main_render.py b/tests/cli/test_main_render.py
index 7c5bd1f9ed..1c53283da3 100644
--- a/tests/cli/test_main_render.py
+++ b/tests/cli/test_main_render.py
@@ -7,6 +7,7 @@
 
 import pytest
 import yaml
+from conda.base.context import context
 from conda.exceptions import PackagesNotFoundError
 
 from conda_build import api
@@ -22,6 +23,10 @@
     from conda_build.metadata import MetaData
 
 
+@pytest.mark.skipif(
+    context.subdir == "osx-arm64",
+    reason="conda_build_test channel does not support osx-arm64",
+)
 def test_render_add_channel(tmp_path: Path) -> None:
     """This recipe requires the conda_build_test_requirement package, which is
     only on the conda_build_test channel. This verifies that the -c argument
diff --git a/tests/test_api_build.py b/tests/test_api_build.py
index 662cbfb175..7ef25a1751 100644
--- a/tests/test_api_build.py
+++ b/tests/test_api_build.py
@@ -143,6 +143,17 @@ def test_recipe_builds(
         pytest.xfail("Numpy build doesn't run on Python 3.13 yet.")
     elif recipe.name == "dll_linking_fail":
         pytest.xfail("Recipe being built needs to fail linking tests.")
+    elif (
+        recipe.name
+        in (
+            "r_test_import",
+            "transitive_subpackage",
+            "always_include_files_glob",
+            "osx_rpath",
+        )
+        and context.subdir == "osx-arm64"
+    ):
+        pytest.skip("Recipe uses packages that are not available on osx-arm64")
 
     # These variables are defined solely for testing purposes,
     # so they can be checked within build scripts
@@ -1478,12 +1489,18 @@ def test_failed_recipe_leaves_folders(testing_config):
 
 
 @pytest.mark.sanity
+@pytest.mark.skipif(
+    context.subdir == "osx-arm64", reason="r-base package not available on osx-arm64"
+)
 def test_only_r_env_vars_defined(testing_config):
     recipe = os.path.join(metadata_dir, "_r_env_defined")
     api.build(recipe, config=testing_config)
 
 
 @pytest.mark.sanity
+@pytest.mark.skipif(
+    context.subdir == "osx-arm64", reason="perl package not available on osx-arm64"
+)
 def test_only_perl_env_vars_defined(testing_config):
     recipe = os.path.join(metadata_dir, "_perl_env_defined")
     api.build(recipe, config=testing_config)
@@ -2164,27 +2181,20 @@ def test_api_build_grpc_issue5645(monkeypatch, tmp_path, testing_config):
 
 
 @pytest.mark.skipif(
-    not on_mac, reason="needs to cross-compile from osx-64 to osx-arm64"
+    not on_mac,
+    reason="needs to cross-compile from osx-64 to osx-arm64",
 )
 def test_api_build_pytorch_cpu_issue5644(monkeypatch, tmp_path, testing_config):
     # this test has to cross-compile from osx-64 to osx-arm64
-    try:
-        if "CONDA_SUBDIR" in os.environ:
-            old_subdir = os.environ["CONDA_SUBDIR"]
-            has_old_subdir = True
-        else:
-            has_old_subdir = False
-            old_subdir = None
-        os.environ["CONDA_SUBDIR"] = "osx-64"
-
-        testing_config.channel_urls = ["conda-forge"]
-        monkeypatch.chdir(tmp_path)
-        api.build(str(metadata_path / "_pytorch_cpu"), config=testing_config)
-    finally:
-        if has_old_subdir:
-            os.environ["CONDA_SUBDIR"] = old_subdir
-        else:
-            del os.environ["CONDA_SUBDIR"]
+    # monkeypatch.setenv("CONDA_SUBDIR", "osx-64")
+    monkeypatch.chdir(tmp_path)
+    api.build(
+        str(metadata_path / "_pytorch_cpu"),
+        config=testing_config,
+        channel_urls=["conda-forge"],
+        platform="osx",
+        arch="64",
+    )
 
 
 @pytest.mark.skipif(on_win, reason="file permissions not relevant on Windows")
diff --git a/tests/test_api_build_go_package.py b/tests/test_api_build_go_package.py
index 35cc12a965..c56394f764 100644
--- a/tests/test_api_build_go_package.py
+++ b/tests/test_api_build_go_package.py
@@ -1,6 +1,7 @@
 # Copyright (C) 2014 Anaconda, Inc
 # SPDX-License-Identifier: BSD-3-Clause
 import pytest
+from conda.base.context import context
 
 from conda_build.api import build
 
@@ -9,6 +10,9 @@
 
 @pytest.mark.sanity
 @pytest.mark.serial
+@pytest.mark.skipif(
+    context.subdir == "osx-arm64", reason="go package not compiled for osx-arm64"
+)
 def test_recipe_build(testing_config, monkeypatch):
     # These variables are defined solely for testing purposes,
     # so they can be checked within build scripts
diff --git a/tests/test_api_render.py b/tests/test_api_render.py
index d1ab7cc307..b9dd4398a9 100644
--- a/tests/test_api_render.py
+++ b/tests/test_api_render.py
@@ -122,6 +122,10 @@ def test_pin_compatible_semver(testing_config):
     assert "zlib >=1.2.11,<2.0a0" in metadata.get_value("requirements/run")
 
 
+@pytest.mark.skipif(
+    context.subdir == "osx-arm64",
+    reason="python=3.6 package not available on osx-arm64",
+)
 def test_transitive_subpackage_dependency(testing_config):
     recipe_dir = os.path.join(metadata_dir, "transitive_subpackage")
     metadata = api.render(recipe_dir, config=testing_config)[1][0]
@@ -218,10 +222,20 @@ def test_noarch_with_platform_deps(testing_workdir, testing_config):
 def test_noarch_with_no_platform_deps(testing_workdir, testing_config):
     recipe_path = os.path.join(metadata_dir, "_noarch_with_no_platform_deps")
     build_ids = set()
-    for platform in ["osx", "linux", "win"]:
-        metadata = api.render(recipe_path, config=testing_config, platform=platform)[0][
-            0
-        ]
+    for platform, arch in [
+        ("osx", "64"),
+        ("osx", "arm64"),
+        ("linux", "64"),
+        ("linux", "aarch64"),
+        ("win", "64"),
+        ("win", "arm64"),
+    ]:
+        metadata = api.render(
+            recipe_path,
+            config=testing_config,
+            platform=platform,
+            arch=arch,
+        )[0][0]
         build_ids.add(metadata.build_id())
 
     assert len(build_ids) == 1
diff --git a/tests/test_api_skeleton.py b/tests/test_api_skeleton.py
index b30ed3b41a..1e605a75a0 100644
--- a/tests/test_api_skeleton.py
+++ b/tests/test_api_skeleton.py
@@ -10,6 +10,7 @@
 
 import pytest
 import ruamel.yaml
+from conda.base.context import context
 
 from conda_build import api
 from conda_build.skeletons.pypi import (
@@ -406,6 +407,10 @@ def test_pypi_with_version_arg(tmp_path: Path):
 
 
 @pytest.mark.slow
+@pytest.mark.skipif(
+    context.subdir == "osx-arm64",
+    reason="python=3.6 package not available on osx-arm64",
+)
 def test_pypi_with_extra_specs(tmp_path: Path, testing_config):
     # regression test for https://github.com/conda/conda-build/issues/1697
     # For mpi4py:
@@ -429,6 +434,10 @@ def test_pypi_with_extra_specs(tmp_path: Path, testing_config):
 
 
 @pytest.mark.slow
+@pytest.mark.skipif(
+    context.subdir == "osx-arm64",
+    reason="python=3.6 package not available on osx-arm64",
+)
 def test_pypi_with_version_inconsistency(tmp_path: Path, testing_config):
     # regression test for https://github.com/conda/conda-build/issues/189
     # For mpi4py: