matplotlib · timhoffm · Jul 6, 2020 · Jun 17, 2020 · Jun 17, 2020 · Jun 18, 2020
diff --git a/.appveyor.yml b/.appveyor.yml
@@ -23,13 +23,14 @@ environment:
     # In theory we could use a single CONDA_INSTALL_LOCN because we construct
     # the envs anyway. But using one for the right python version hopefully
     # making things faster due to package caching.
-    - PYTHON_VERSION: "3.6"
-      CONDA_INSTALL_LOCN: "C:\\Miniconda36-x64"
+    - PYTHON_VERSION: "3.7"
+      CONDA_INSTALL_LOCN: "C:\\Miniconda37-x64"
       TEST_ALL: "no"
       EXTRAREQS: "-r requirements/testing/travis_extra.txt"
-    - PYTHON_VERSION: "3.7"
+    - PYTHON_VERSION: "3.8"
       CONDA_INSTALL_LOCN: "C:\\Miniconda37-x64"
-      CONDA_INSTALL_LOCN: "C:\\Miniconda37-x64"
+      CONDA_INSTALL_LOCN: "C:\\Miniconda38-x64"
-      CONDA_INSTALL_LOCN: "C:\\Miniconda37-x64"
+      CONDA_INSTALL_LOCN: "C:\\Miniconda38-x64"
       TEST_ALL: "no"
+      EXTRAREQS: "-r requirements/testing/travis_extra.txt"
 
 # We always use a 64-bit machine, but can build x86 distributions
 # with the PYTHON_ARCH variable
@@ -55,19 +56,15 @@ install:
   # For building, use a new environment
   - conda create -q -n test-environment python=%PYTHON_VERSION% tk
   - activate test-environment
+  # pull pywin32 from conda because on py38 there is something wrong with finding
+  # the dlls when insalled from pip
+  - conda install -c conda-forge pywin32
   - echo %PYTHON_VERSION% %TARGET_ARCH%
   # Install dependencies from PyPI.
   - python -mpip install --upgrade -r requirements/testing/travis_all.txt %EXTRAREQS% %PINNEDVERS%
   # Install optional dependencies from PyPI.
   # Sphinx is needed to run sphinxext tests
   - python -mpip install --upgrade sphinx
-
-  # Apply patch to `subprocess` on Python versions > 2 and < 3.6.3
-  # https://github.com/matplotlib/matplotlib/issues/9176
-  - python -c "import sys; sys.exit(not (3,) < sys.version_info < (3,6,3))" && (
-    curl -sL https://github.com/python/cpython/pull/1224.patch |
-    patch -fsup 1 -d %CONDA_PREFIX% ) || cmd /c "exit /b 0"
-
   # Show the installed packages + versions
   - conda list
 

diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -110,17 +110,17 @@ commands:
 #
 
 jobs:
-  docs-python36:
+  docs-python37:
     docker:
-      - image: circleci/python:3.6
+      - image: circleci/python:3.7
     steps:
       - checkout
 
       - apt-install
       - fonts-install
       - pip-install
-      - deps-install:
-          numpy_version: "==1.13.0"
+
+      - deps-install
       - mpl-install
 
       - doc-build
@@ -130,17 +130,18 @@ jobs:
       - store_artifacts:
           path: doc/build/html
 
-  docs-python37:
+  docs-python38-min:
     docker:
-      - image: circleci/python:3.7
+      - image: circleci/python:3.8
     steps:
       - checkout
 
       - apt-install
       - fonts-install
       - pip-install
 
-      - deps-install
+      - deps-install:
+          numpy_version: "==1.16.0"
       - mpl-install
 
       - doc-build
@@ -185,6 +186,6 @@ workflows:
   version: 2
   build:
     jobs:
-      - docs-python36
       - docs-python37
       - docs-python38
+      - docs-python38-min
diff --git a/.travis.yml b/.travis.yml
@@ -73,9 +73,9 @@ env:
 
 matrix:
   include:
-    - python: 3.6
+    - python: 3.7
       env:
-        - PINNEDVERS='-c requirements/testing/travis36minver.txt'
+        - PINNEDVERS='-c requirements/testing/minver.txt'
         - DELETE_FONT_CACHE=1
     - python: 3.7
       env:

diff --git a/INSTALL.rst b/INSTALL.rst
@@ -143,14 +143,14 @@ Matplotlib will automatically install dependencies when you install with
 
 Matplotlib requires the following dependencies:
 
-* `Python <https://www.python.org/downloads/>`_ (>= 3.6)
-* `NumPy <https://numpy.org>`_ (>= 1.15)
+* `Python <https://www.python.org/downloads/>`_ (>= 3.7)
+* `NumPy <https://numpy.org>`_ (>= 1.16)
 * `setuptools <https://setuptools.readthedocs.io/en/latest/>`_
 * `cycler <https://matplotlib.org/cycler/>`_ (>= 0.10.0)
-* `dateutil <https://pypi.org/project/python-dateutil>`_ (>= 2.1)
-* `kiwisolver <https://github.com/nucleic/kiwi>`_ (>= 1.0.0)
+* `dateutil <https://pypi.org/project/python-dateutil>`_ (>= 2.7)
+* `kiwisolver <https://github.com/nucleic/kiwi>`_ (>= 1.0.1)
 * `Pillow <https://pillow.readthedocs.io/en/latest/>`_ (>= 6.2)
-* `pyparsing <https://pypi.org/project/pyparsing/>`_ (>=2.0.3)
+* `pyparsing <https://pypi.org/project/pyparsing/>`_ (>=2.2.1)
 
 Optionally, you can also install a number of packages to enable better user
 interface toolkits. See :ref:`what-is-a-backend` for more details on the

diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -5,27 +5,18 @@
 
 strategy:
   matrix:
-    Linux_py36:
-      vmImage: 'ubuntu-16.04'
-      python.version: '3.6'
     Linux_py37:
       vmImage: 'ubuntu-16.04'
       python.version: '3.7'
     Linux_py38:
       vmImage: 'ubuntu-16.04'
       python.version: '3.8'
-    macOS_py36:
-      vmImage: 'macOS-10.14'
-      python.version: '3.6'
     macOS_py37:
       vmImage: 'macOS-10.15'
       python.version: '3.7'
     macOS_py38:
       vmImage: 'macOS-latest'
       python.version: '3.8'
-    Windows_py36:
-      vmImage: 'vs2017-win2016'
-      python.version: '3.6'
     Windows_py37:
       vmImage: 'vs2017-win2016'
       python.version: '3.7'

diff --git a/doc/api/next_api_changes/deprecations/17662-TAC.rst b/doc/api/next_api_changes/deprecations/17662-TAC.rst
@@ -0,0 +1,22 @@
+Increase minimum supported versions of Python and dependencies
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+
+For Maptlotlib 3.4 the :ref:`minimum supported versions
+<install_requirements>` are being bumped
+
++------------+-----------------+---------------+
+| Dependency |  min in mpl3.3  | min in mpl3.4 |
++============+=================+===============+
+|   Python   |       3.6       |      3.7      |
++------------+-----------------+---------------+
+|  dateutil  |       2.1       |     2.2.1     |
++------------+-----------------+---------------+
+|   numpy    |      1.15       |     1.16      |
++------------+-----------------+---------------+
+| pyparsing  |      2.0.3      |     2.2.1     |
++------------+-----------------+---------------+
+
+
+This consistent with our :ref:`min_deps_policy` and `NEP29
+<https://numpy.org/neps/nep-0029-deprecation_policy.html>`__
diff --git a/doc/devel/coding_guide.rst b/doc/devel/coding_guide.rst
@@ -255,7 +255,7 @@ The current active branches are
 
 *master*
   The current development version. Future minor releases (*v3.N.0*) will be
-  branched from this. Supports Python 3.6+.
+  branched from this. Supports Python 3.7+.
 
 *v3.N.x*
   Maintenance branch for Matplotlib 3.N. Future patch releases will be

diff --git a/doc/devel/min_dep_policy.rst b/doc/devel/min_dep_policy.rst
@@ -83,7 +83,8 @@ specification of the dependencies.
 ==========  ========  ======
 Matplotlib  Python    NumPy
 ==========  ========  ======
-3.3         3.6       1.15.0
+3.4         3.7       1.16.0
+`3.3`_      3.6       1.15.0
 `3.2`_      3.6       1.11.0
 `3.1`_      3.6       1.11.0
 `3.0`_      3.5       1.10.0
@@ -98,6 +99,7 @@ Matplotlib  Python    NumPy
 1.0         2.4       1.1
 ==========  ========  ======
 
+.. _`3.3`: https://matplotlib.org/3.3.0/users/installing.html#dependencies
 .. _`3.2`: https://matplotlib.org/3.2.0/users/installing.html#dependencies
 .. _`3.1`: https://matplotlib.org/3.1.0/users/installing.html#dependencies
 .. _`3.0`: https://matplotlib.org/3.0.0/users/installing.html#dependencies

diff --git a/doc/devel/testing.rst b/doc/devel/testing.rst
@@ -243,7 +243,7 @@ You can also run tox on a subset of environments:
 
 .. code-block:: bash
 
-    $ tox -e py36,py37
+    $ tox -e py37,py38
 
 Tox processes everything serially so it can take a long time to test
 several environments. To speed it up, you might try using a new,

diff --git a/doc/faq/installing_faq.rst b/doc/faq/installing_faq.rst
@@ -105,7 +105,7 @@ the form of wheels.
 pip is installed by default with python.org and Homebrew Python, but needs to
 be manually installed on Macports with ::
 
-   sudo port install py36-pip
+   sudo port install py38-pip
 
 Once pip is installed, you can install Matplotlib and all its dependencies with
 from the Terminal.app command line::

diff --git a/requirements/testing/minver.txt b/requirements/testing/minver.txt
@@ -0,0 +1,7 @@
+# Extra pip requirements for the minimum-version travis run
+
+cycler==0.10
+python-dateutil==2.7
+numpy==1.16.0
+pyparsing==2.2.1
+kiwisolver==1.0.1
diff --git a/requirements/testing/travis36minver.txt b/requirements/testing/travis36minver.txt
diff --git a/setup.py b/setup.py
@@ -8,7 +8,7 @@
 # and/or pip.
 import sys
 
-min_version = (3, 6)
+min_version = (3, 7)
 
 if sys.version_info < min_version:
     error = """
@@ -280,10 +280,10 @@ def build_extensions(self):
     install_requires=[
         "cycler>=0.10",
         "kiwisolver>=1.0.1",
-        "numpy>=1.15",
+        "numpy>=1.16",
         "pillow>=6.2.0",
-        "pyparsing>=2.0.3,!=2.0.4,!=2.1.2,!=2.1.6",
-        "python-dateutil>=2.1",
+        "pyparsing>=2.2.1",
+        "python-dateutil>=2.7",
     ],
 
     cmdclass=cmdclass,

diff --git a/tox.ini b/tox.ini
@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py36, py37, py38
+envlist = py37, py38
 
 [testenv]
 changedir = /tmp