diff --git a/.github/workflows/basemap-data-hires.yml b/.github/workflows/basemap-data-hires.yml
index c735d703b..4631254e5 100644
--- a/.github/workflows/basemap-data-hires.yml
+++ b/.github/workflows/basemap-data-hires.yml
@@ -9,6 +9,19 @@ on:
 
 jobs:
 
+  checkout:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Upload checkout
+        uses: actions/upload-artifact@v1
+        with:
+          name: checkout
+          path: .
+
   build:
     strategy:
       matrix:
@@ -17,12 +30,16 @@ jobs:
             "2.7",
           ]
       max-parallel: 1
+    needs: checkout
     runs-on: ubuntu-latest
     container: "pylegacy/python:${{ matrix.python-version }}-debian-4"
     steps:
       -
-        name: Checkout
-        uses: actions/checkout@v1
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
       -
         name: Build wheel
         run: |
@@ -51,15 +68,18 @@ jobs:
             "3.8",
             "3.9",
           ]
-      max-parallel: 6
+      max-parallel: 3
       fail-fast: false
     needs: build
     runs-on: ubuntu-latest
     container: "pylegacy/python:${{ matrix.python-version }}-debian-5"
     steps:
       -
-        name: Checkout
-        uses: actions/checkout@v1
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
       -
         name: Download build artifacts
         uses: actions/download-artifact@v1
@@ -89,9 +109,6 @@ jobs:
     container: "pylegacy/python:${{ matrix.python-version }}-debian-5"
     environment: PyPI
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Download build artifacts
         uses: actions/download-artifact@v1
diff --git a/.github/workflows/basemap-data.yml b/.github/workflows/basemap-data.yml
index f48c524a3..21058b1c1 100644
--- a/.github/workflows/basemap-data.yml
+++ b/.github/workflows/basemap-data.yml
@@ -9,6 +9,19 @@ on:
 
 jobs:
 
+  checkout:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Upload checkout
+        uses: actions/upload-artifact@v1
+        with:
+          name: checkout
+          path: .
+
   build:
     strategy:
       matrix:
@@ -17,12 +30,16 @@ jobs:
             "2.7",
           ]
       max-parallel: 1
+    needs: checkout
     runs-on: ubuntu-latest
     container: "pylegacy/python:${{ matrix.python-version }}-debian-4"
     steps:
       -
-        name: Checkout
-        uses: actions/checkout@v1
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
       -
         name: Build wheel
         run: |
@@ -51,15 +68,18 @@ jobs:
             "3.8",
             "3.9",
           ]
-      max-parallel: 6
+      max-parallel: 3
       fail-fast: false
     needs: build
     runs-on: ubuntu-latest
     container: "pylegacy/python:${{ matrix.python-version }}-debian-5"
     steps:
       -
-        name: Checkout
-        uses: actions/checkout@v1
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
       -
         name: Download build artifacts
         uses: actions/download-artifact@v1
@@ -89,9 +109,6 @@ jobs:
     container: "pylegacy/python:${{ matrix.python-version }}-debian-5"
     environment: PyPI
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Download build artifacts
         uses: actions/download-artifact@v1
diff --git a/.github/workflows/basemap-for-manylinux.yml b/.github/workflows/basemap-for-manylinux.yml
index 1adaee914..95539d45b 100644
--- a/.github/workflows/basemap-for-manylinux.yml
+++ b/.github/workflows/basemap-for-manylinux.yml
@@ -9,6 +9,19 @@ on:
 
 jobs:
 
+  checkout:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Upload checkout
+        uses: actions/upload-artifact@v1
+        with:
+          name: checkout
+          path: .
+
   build-geos:
     strategy:
       matrix:
@@ -19,12 +32,16 @@ jobs:
           ]
       max-parallel: 2
       fail-fast: false
+    needs: checkout
     runs-on: ubuntu-latest
     container: "pylegacy/${{ matrix.arch }}-python:3.6-debian-4"
     steps:
       -
-        name: Checkout
-        uses: actions/checkout@v1
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
       -
         name: Install CMake 3.6.2
         run: |
@@ -74,15 +91,18 @@ jobs:
             "3.8",
             "3.9",
           ]
-      max-parallel: 6
+      max-parallel: 3
       fail-fast: false
     needs: build-geos
     runs-on: ubuntu-latest
     container: "pylegacy/${{ matrix.arch }}-python:${{ matrix.python-version }}-debian-4"
     steps:
       -
-        name: Checkout
-        uses: actions/checkout@v1
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
       -
         name: Download GEOS artifacts
         uses: actions/download-artifact@v1
@@ -149,15 +169,12 @@ jobs:
             "3.8",
             "3.9",
           ]
-      max-parallel: 6
+      max-parallel: 3
       fail-fast: false
     needs: build
     runs-on: ubuntu-latest
     container: "pylegacy/${{ matrix.arch }}-python:3.6-debian-5"
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Download GEOS artifacts
         uses: actions/download-artifact@v1
@@ -214,6 +231,81 @@ jobs:
           name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
           path: ${{ env.PKGDIR }}/dist
 
+  test:
+    strategy:
+      matrix:
+        arch:
+          [
+            "x64",
+            "x86",
+          ]
+        python-version:
+          [
+            "2.7",
+            "3.5",
+            "3.6",
+            "3.7",
+            "3.8",
+            "3.9",
+          ]
+      max-parallel: 3
+      fail-fast: false
+    needs: repair
+    runs-on: ubuntu-latest
+    container: "pylegacy/${{ matrix.arch }}-python:${{ matrix.python-version }}-debian-5"
+    steps:
+      -
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
+      -
+        name: Download build artifacts
+        uses: actions/download-artifact@v1
+        with:
+          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
+          path: ${{ env.PKGDIR }}/dist
+      -
+        name: Install GCC toolchain
+        run: |
+          apt-get update
+          apt-get install -y gcc g++ make
+      -
+        name: Install matplotlib dependencies
+        run: |
+          apt-get update
+          apt-get install -y libfreetype6-dev libpng12-dev
+        if: matrix.arch == 'x86' && matrix.python-version == '3.5'
+      -
+        name: Install pyproj manually
+        run: |
+          apt-get update
+          apt-get install -y proj-bin libproj-dev
+          python -m pip install cython
+          pkgname=pyproj
+          pkgvers=${{ env.pyproj-version }}
+          pkgcode=${pkgname}-${pkgvers}
+          python -m pip download "pyproj == ${pkgvers}"
+          tar -xf ${pkgcode}.tar.gz
+          rm -rf ${pkgcode}.tar.gz
+          cd ${pkgcode}
+          rm _proj.c
+          python -m pip install .
+          cd ..
+          rm -rf ${pkgcode}
+        if: matrix.python-version == '3.9'
+        env:
+          pyproj-version: 1.9.6
+      -
+        name: Install package
+        run: |
+          pip install --prefer-binary ${{ env.PKGDIR }}/dist/*-manylinux1*.whl
+      -
+        name: Test package
+        run: |
+          python -c "from mpl_toolkits.basemap import Basemap"
+
   upload:
     strategy:
       matrix:
@@ -233,14 +325,11 @@ jobs:
           ]
       max-parallel: 1
     if: startsWith(github.event.ref, 'refs/tags/v')
-    needs: repair
+    needs: test
     runs-on: ubuntu-latest
     container: "pylegacy/${{ matrix.arch }}-python:${{ matrix.python-version }}-debian-5"
     environment: PyPI
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Download build artifacts
         uses: actions/download-artifact@v1
diff --git a/.github/workflows/basemap-for-windows.yml b/.github/workflows/basemap-for-windows.yml
index 353a74112..dfcb6d5ee 100644
--- a/.github/workflows/basemap-for-windows.yml
+++ b/.github/workflows/basemap-for-windows.yml
@@ -9,6 +9,19 @@ on:
 
 jobs:
 
+  checkout:
+    runs-on: windows-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Upload checkout
+        uses: actions/upload-artifact@v1
+        with:
+          name: checkout
+          path: .
+
   build-geos:
     strategy:
       matrix:
@@ -27,11 +40,15 @@ jobs:
             cmake-version: "3.13.2"
       max-parallel: 4
       fail-fast: false
+    needs: checkout
     runs-on: windows-latest
     steps:
       -
-        name: Checkout
-        uses: actions/checkout@v1
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
       -
         name: Set Python
         uses: actions/setup-python@v2
@@ -80,14 +97,17 @@ jobs:
             "3.8",
             "3.9",
           ]
-      max-parallel: 6
+      max-parallel: 3
       fail-fast: false
     needs: build-geos
     runs-on: windows-latest
     steps:
       -
-        name: Checkout
-        uses: actions/checkout@v1
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
       -
         name: Set Python
         uses: actions/setup-python@v2
@@ -155,6 +175,55 @@ jobs:
           name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
           path: ${{ env.PKGDIR }}/dist
 
+  test:
+    strategy:
+      matrix:
+        arch:
+          [
+            "x64",
+            "x86",
+          ]
+        python-version:
+          [
+            "2.7",
+            "3.5",
+            "3.6",
+            "3.7",
+            "3.8",
+            "3.9",
+          ]
+      max-parallel: 3
+      fail-fast: false
+    needs: build
+    runs-on: windows-latest
+    steps:
+      -
+        name: Download checkout
+        uses: actions/download-artifact@v1
+        with:
+          name: checkout
+          path: .
+      -
+        name: Set Python
+        uses: actions/setup-python@v2
+        with:
+          architecture: ${{ matrix.arch }}
+          python-version: ${{ matrix.python-version }}
+      -
+        name: Download build artifacts
+        uses: actions/download-artifact@v1
+        with:
+          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
+          path: ${{ env.PKGDIR }}/dist
+      -
+        name: Install package
+        run: |
+          pip install --prefer-binary (Get-Item ${{ env.PKGDIR }}/dist/*-win*.whl)
+      -
+        name: Test package
+        run: |
+          python -c "from mpl_toolkits.basemap import Basemap"
+
   upload:
     strategy:
       matrix:
@@ -174,13 +243,10 @@ jobs:
           ]
       max-parallel: 1
     if: startsWith(github.event.ref, 'refs/tags/v')
-    needs: build
+    needs: test
     runs-on: windows-latest
     environment: PyPI
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Set Python
         uses: actions/setup-python@v2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a1a546c5e..d6e889670 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,38 @@ is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and the
 project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html)
 since version 1.3.0.
 
-## [Unreleased]
+## [1.3.0] - 2020-12-28
+
+### Added
+- Precompiled binary wheels available in PyPI.
+- Complete workflow to build the project wheels for Windows and GNU/Linux
+  using GitHub Actions.
+
+### Changed
+- Reorganise the package structure. In summary, the former `basemap` package
+  is split in three:
+  - `basemap` itself contains the Python modules.
+  - `basemap-data` contains the mandatory data assets required by `basemap`
+    to provide minimal functionality.
+  - `basemap-data-hires` contains the high-resolution data assets.
+- Upgrade default GEOS library dependency to 3.5.1.
+- Update and clarify licenses. In summary:
+  - `basemap`: MIT license.
+    - GEOS bundled dynamic library is under the LGPL-2.1-only license.
+  - `basemap-data`: LGPL-3.0-or-later.
+    - The EPSG file and the JPG images are also under the MIT license.
+  - `basemap-data-hires`: LGPL-3.0-or-later.
+
+### Fixed
+- Fix `Basemap.pcolormesh` for `"ortho"` projection (PR [#476]).
+- Fix `Basemap.arcgisimage` for cylindrical coordinates (PR [#505]).
+- Force `setup.py` to cythonize `_geoslib.pyx` at compile time (issues [#518]
+  and [#521]).
+
+### Removed
+- Bundled GEOS source code. The same source code can be downloaded using the
+  `GeosLibrary` class in `utils`.
+- Precompiled `_geoslib.c` file.
 
 ## [1.2.2] - 2020-08-04
 
@@ -791,8 +822,19 @@ since version 1.3.0.
 - Fix glitches in drawing of parallels and meridians.
 
 
+[#521]:
+https://github.com/matplotlib/basemap/issues/521
+[#518]:
+https://github.com/matplotlib/basemap/issues/518
+[#505]:
+https://github.com/matplotlib/basemap/pull/505
+[#476]:
+https://github.com/matplotlib/basemap/pull/476
+
 [Unreleased]:
-https://github.com/matplotlib/basemap/compare/v1.2.2rel...develop
+https://github.com/matplotlib/basemap/compare/v1.3.0...develop
+[1.3.0]:
+https://github.com/matplotlib/basemap/compare/v1.2.2rel...v1.3.0
 [1.2.2]:
 https://github.com/matplotlib/basemap/compare/v1.2.1rel...v1.2.2rel
 [1.2.1]:
diff --git a/README.md b/README.md
index 7acc0fb3c..ec1f650c2 100644
--- a/README.md
+++ b/README.md
@@ -11,24 +11,20 @@ using matplotlib.
 Basic requirements are the following:
 
 * Python 2.6 (or higher)
-* matplotlib
-* numpy
+* [matplotlib](https://github.com/matplotlib/matplotlib)
+* [numpy](https://github.com/numpy/numpy)
 * [pyproj](https://github.com/pyproj4/pyproj)
 * [pyshp](https://github.com/GeospatialPython/pyshp)
-* GEOS library (Geometry Engine, Open Source) version 3.1.1 or higher.
-* On Linux, if your Python was installed via a package management
-  system, make sure the corresponding `python-dev` package is also
-  installed. Otherwise, you may not have the Python header (`Python.h`),
-  which is required to build Python C extensions.
+* [six](https://github.com/benjaminp/six)
 
 Optional requirements include:
 
 * [OWSLib](https://github.com/geopython/OWSLib). It is needed for the
-  `BaseMap.wmsimage` function.
+  `Basemap.wmsimage` function.
 
-* [Pillow](https://python-pillow.github.io/). It is needed for Basemap
-  warpimage, bluemarble, shadedrelief, and etopo methods. PIL should
-  work on Python 2.x. Pillow is a maintained fork of PIL.
+* [Pillow](https://github.com/python-pillow/Pillow). It is needed for
+  the methods `Basemap.bluemarble`, `Basemap.etopo`,
+  `Basemap.shadedrelief` and `Basemap.warpimage`.
 
 ## Installation
 
@@ -39,7 +35,8 @@ python -m pip install basemap-data
 python -m pip install basemap-data-hires
 ```
 
-Precompiled binaries for GNU/Linux are also available in PyPI:
+Precompiled `basemap` binary wheels for Windows and GNU/Linux are also
+available in PyPI (architectures x86 and x64, Python 2.7 and 3.5+):
 ```sh
 python -m pip install basemap
 ```
@@ -47,37 +44,41 @@ python -m pip install basemap
 Otherwise, you will need to install `basemap` from source as follows:
 
 1. Install pre-requisite Python modules:
-   - `cython`.
-   - `numpy`.
+   - [cython](https://github.com/cython/cython)
+   - [numpy](https://github.com/numpy/numpy)
 
 2. Download the `basemap` source code and move to the `packages/basemap`
    folder:
    ```sh
-   git clone https://github.com/matplotlib/basemap.git
+   git clone --depth 1 https://github.com/matplotlib/basemap.git
    cd basemap/packages/basemap
    ```
 
-3. Build the GEOS library. You may use the helper provided in `utils`, i.e.
+3. Build the [GEOS](https://github.com/libgeos/geos) library. You may
+   use the helper provided in `utils`, i.e.
    ```sh
    export GEOS_DIR=<your desired location>
-   python -c "import utils; utils.GeosLibrary('3.6.5').build(installdir='${GEOS_DIR}')"
+   python -c "import utils; utils.GeosLibrary('3.5.1').build(installdir='${GEOS_DIR}')"
    ```
-   or you can link directly to the system library if it is already installed.
-   `GEOS_DIR` must point to the GEOS installation prefix; e.g. if `libgeos_c.so`
-   is located in `/usr/lib` and `geos_c.h` is located in `/usr/include`, then
-   you must set `GEOS_DIR` to `/usr`.
+   or you can link directly to the system library if it is already
+   installed. `GEOS_DIR` must point to the GEOS installation prefix;
+   e.g. if `libgeos_c.so` is located in `/usr/lib` and `geos_c.h` is
+   located in `/usr/include`, then you must set `GEOS_DIR` to `/usr`.
 
-4. Build the basemap wheel from the `packages/basemap` folder and install it:
+4. Build and install the `basemap` binary wheel:
    ```sh
-   python setup.py bdist_wheel
-   python -m pip install dist/*.whl
+   python -m pip install .
    ```
+   On Linux, if your Python was installed through a package management
+   system, make sure that you have the Python header `Python.h` required
+   to build Cython extensions (e.g. on Debian-like systems, you should
+   have the package `python-dev` installed).
 
-5. Check that the package installed correctly by executing in the terminal:
+5. Check that the package installed correctly by executing:
    ```sh
    python -c "from mpl_toolkits.basemap import Basemap"
    ```
-   You can also test the `basemap` examples available in the `examples` folder.
+   You can also test the examples available in the `examples` folder.
 
 ## License
 
@@ -89,8 +90,8 @@ The source code and data assets are under the following licenses:
   * The EPSG file and the JPG images are also under the [MIT] license.
 * `basemap-data-hires`: [LGPL-3.0-or-later].
 
-For a full description, please visit the README and LICENSE files of
-each package in the corresponding package folders.
+For a full description, please visit the `README` and `LICENSE` files of
+each package.
 
 [MIT]:
 https://spdx.org/licenses/MIT.html
@@ -101,7 +102,7 @@ https://spdx.org/licenses/LGPL-3.0-or-later.html
 
 ## Documentation
 
-See http://matplotlib.github.io/basemap/
+See https://matplotlib.github.io/basemap/
 
 See scripts in `examples` directory for example usage.
 
diff --git a/packages/basemap/README.md b/packages/basemap/README.md
index 107559e84..a40f86549 100644
--- a/packages/basemap/README.md
+++ b/packages/basemap/README.md
@@ -7,6 +7,19 @@ This package depends on the support package [`basemap-data`] with the
 basic [`basemap`] data assets, and optionally on the support package
 [`basemap-data-hires`] with high-resolution data assets.
 
+## Installation
+
+Precompiled binary wheels for Windows and GNU/Linux are available in
+PyPI (architectures x86 and x64, Python 2.7 and 3.5+) and can be
+installed with [`pip`]:
+```sh
+python -m pip install basemap
+```
+
+If you need to install from source, please visit the
+[GitHub repository](https://github.com/matplotlib/basemap) for a
+step-by-step description.
+
 ## License
 
 The library is licensed under the terms of the [MIT] license (see
@@ -23,6 +36,8 @@ https://matplotlib.org/basemap/
 https://pypi.org/project/basemap-data
 [`basemap-data-hires`]:
 https://pypi.org/project/basemap-data-hires
+[`pip`]:
+https://pip.pypa.io/
 
 [LGPLv2.1]:
 https://spdx.org/licenses/LGPL-2.1-only.html
@@ -30,6 +45,6 @@ https://spdx.org/licenses/LGPL-2.1-only.html
 https://spdx.org/licenses/MIT.html
 
 [`LICENSE`]:
-https://github.com/matplotlib/basemap/blob/develop/packages/basemap/LICENSE
+https://github.com/matplotlib/basemap/blob/v1.3.0/packages/basemap/LICENSE
 [`LICENSE.geos`]:
-https://github.com/matplotlib/basemap/blob/develop/packages/basemap/LICENSE.geos
+https://github.com/matplotlib/basemap/blob/v1.3.0/packages/basemap/LICENSE.geos
diff --git a/packages/basemap/requirements.txt b/packages/basemap/requirements.txt
index 527fac6ca..3ba8edd6d 100644
--- a/packages/basemap/requirements.txt
+++ b/packages/basemap/requirements.txt
@@ -1,4 +1,4 @@
-basemap_data > 1.2, < 2.0
+basemap_data >= 1.3, < 1.4
 
 six >= 1.10, < 1.16
 
diff --git a/packages/basemap/setup.py b/packages/basemap/setup.py
index ba77a07d8..03d36c27f 100644
--- a/packages/basemap/setup.py
+++ b/packages/basemap/setup.py
@@ -166,13 +166,11 @@ def _default_to_zip(self):
         item.replace(marker, "") for item in install_requires
         if item.endswith(marker) or "python_version" not in item]
 
-# To create the source .tar.gz file:  python setup.py sdist
-# To create the universal wheel file: python setup.py bdist_wheel --universal
 setup(**{
     "name":
         "basemap",
     "version":
-        "1.3.0rc1",
+        "1.3.0",
     "license":
         "MIT",
     "description":
diff --git a/packages/basemap/src/mpl_toolkits/basemap/__init__.py b/packages/basemap/src/mpl_toolkits/basemap/__init__.py
index ae97b80e6..ccf8e0b41 100644
--- a/packages/basemap/src/mpl_toolkits/basemap/__init__.py
+++ b/packages/basemap/src/mpl_toolkits/basemap/__init__.py
@@ -64,7 +64,7 @@
     from mpl_toolkits import basemap_data
     basemap_datadir = os.path.abspath(list(basemap_data.__path__)[0])
 
-__version__ = '1.3.0rc1'
+__version__ = '1.3.0'
 
 # module variable that sets the default value for the 'latlon' kwarg.
 # can be set to True by user so plotting functions can take lons,lats
diff --git a/packages/basemap/src/mpl_toolkits/basemap/proj.py b/packages/basemap/src/mpl_toolkits/basemap/proj.py
index 856f86769..f6c2d1f19 100644
--- a/packages/basemap/src/mpl_toolkits/basemap/proj.py
+++ b/packages/basemap/src/mpl_toolkits/basemap/proj.py
@@ -10,7 +10,7 @@
     # as textwrap.dedent.
     from matplotlib.cbook import dedent
 
-__version__ = '1.3.0rc1'
+__version__ = '1.3.0'
 _dg2rad = math.radians(1.)
 _rad2dg = math.degrees(1.)
 
diff --git a/packages/basemap_data/README.md b/packages/basemap_data/README.md
index 04fb2a226..ba6800b41 100644
--- a/packages/basemap_data/README.md
+++ b/packages/basemap_data/README.md
@@ -35,7 +35,7 @@ https://pip.pypa.io/
 [GSHHG]:
 https://www.soest.hawaii.edu/pwessel/gshhg
 [GMT]:
-http://gmt.soest.hawaii.edu
+https://www.generic-mapping-tools.org/
 
 [LGPLv3+]:
 https://spdx.org/licenses/LGPL-3.0-or-later.html
@@ -43,10 +43,10 @@ https://spdx.org/licenses/LGPL-3.0-or-later.html
 https://spdx.org/licenses/MIT.html
 
 [`COPYING`]:
-https://github.com/matplotlib/basemap/blob/develop/packages/basemap_data/COPYING
+https://github.com/matplotlib/basemap/blob/v1.3.0/packages/basemap_data/COPYING
 [`COPYING.LESSER`]:
-https://github.com/matplotlib/basemap/blob/develop/packages/basemap_data_hires/COPYING.LESSER
+https://github.com/matplotlib/basemap/blob/v1.3.0/packages/basemap_data/COPYING.LESSER
 [`LICENSE.epsg`]:
-https://github.com/matplotlib/basemap/blob/develop/packages/basemap_data/LICENSE.epsg
+https://github.com/matplotlib/basemap/blob/v1.3.0/packages/basemap_data/LICENSE.epsg
 [`LICENSE.mit`]:
-https://github.com/matplotlib/basemap/blob/develop/packages/basemap_data/LICENSE.mit
+https://github.com/matplotlib/basemap/blob/v1.3.0/packages/basemap_data/LICENSE.mit
diff --git a/packages/basemap_data/setup.py b/packages/basemap_data/setup.py
index 60cf95639..4674b6003 100644
--- a/packages/basemap_data/setup.py
+++ b/packages/basemap_data/setup.py
@@ -83,13 +83,11 @@ def _default_to_zip(self):
 
 data_files = data_dat_files + data_bin_files + data_usc_files + data_other_files
 
-# To create the source .tar.gz file:  python setup.py sdist
-# To create the universal wheel file: python setup.py bdist_wheel --universal
 setup(**{
     "name":
         "basemap_data",
     "version":
-        "1.3.0rc1",
+        "1.3.0",
     "license":
         "GNU Lesser General Public License v3 or later (LGPLv3+)",
     "description":
diff --git a/packages/basemap_data_hires/README.md b/packages/basemap_data_hires/README.md
index 00dcaefb9..9600e0a21 100644
--- a/packages/basemap_data_hires/README.md
+++ b/packages/basemap_data_hires/README.md
@@ -31,11 +31,11 @@ https://pip.pypa.io/
 [GSHHG]:
 https://www.soest.hawaii.edu/pwessel/gshhg
 [GMT]:
-http://gmt.soest.hawaii.edu
+https://www.generic-mapping-tools.org/
 
 [LGPLv3+]:
 https://spdx.org/licenses/LGPL-3.0-or-later.html
 [`COPYING`]:
-https://github.com/matplotlib/basemap/blob/develop/packages/basemap_data_hires/COPYING
+https://github.com/matplotlib/basemap/blob/v1.3.0/packages/basemap_data_hires/COPYING
 [`COPYING.LESSER`]:
-https://github.com/matplotlib/basemap/blob/develop/packages/basemap_data_hires/COPYING.LESSER
+https://github.com/matplotlib/basemap/blob/v1.3.0/packages/basemap_data_hires/COPYING.LESSER
diff --git a/packages/basemap_data_hires/setup.py b/packages/basemap_data_hires/setup.py
index c596d6841..72f035c41 100644
--- a/packages/basemap_data_hires/setup.py
+++ b/packages/basemap_data_hires/setup.py
@@ -61,13 +61,11 @@ def _default_to_zip(self):
     for basename, res in itertools.product(basenames, resolutions[3:])
 ]
 
-# To create the source .tar.gz file:  python setup.py sdist
-# To create the universal wheel file: python setup.py bdist_wheel --universal
 setup(**{
     "name":
         "basemap_data_hires",
     "version":
-        "1.3.0rc1",
+        "1.3.0",
     "license":
         "GNU Lesser General Public License v3 or later (LGPLv3+)",
     "description":