diff --git a/.travis.yml b/.travis.yml
index aedc92a7..be5e013d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,40 +19,36 @@ env:
   - PYVER=3.6 NPY="numpy==1.14.5"
   - PYVER=3.6 NPY="numpy>=1.15"
 
-  - PYVER=3.7 NPY="numpy==1.14.5"
   - PYVER=3.7 NPY="numpy>=1.15"
 
   - PYVER=3.8 NPY="numpy>=1.15"
 
+  - PYVER=3.9 NPY="numpy>=1.15"
+
 #  - PYVER=pypy2.7 NPY="numpy>=1.15"
 
   - PYVER=pypy3.6 NPY="numpy>=1.15"
 
 install:
   # Install conda
-  - wget -nv http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh
+  - wget -nv https://github.com/conda-forge/miniforge/releases/latest/download/Miniforge3-Linux-x86_64.sh -O miniconda.sh
   - bash miniconda.sh -b -p $HOME/miniconda
-  - export PATH="$HOME/miniconda/bin:$PATH"
-  - hash -r
-  - conda config --add channels conda-forge;
-  # conda install --quiet --yes -c conda-forge/label/mamba-alpha mamba
+  - eval "$($HOME/miniconda/bin/python -m conda shell.bash hook)"
+  - conda install --quiet --yes mamba
   - conda config --set always_yes yes --set changeps1 no
   # Create the conda testing environment
-  # FIXME: Mamba decides to upgrade Python here so pin it again
-  # FIXME: Channel priority is also mixed up
-  # FIXME: Mamba doesn't install pip by default
-  # FIXME: Mamba causes pip install numpy to be extremely slow
+  # pyopenssl is for deployment
   - if [[ "${PYVER}" = pypy* ]]; then
-      conda create --quiet --yes -n testenv ${PYVER};
-    elif [ "${PYVER}" = "2.7" ] || [ "${PYVER}" = "3.6" ] || [ "${PYVER}" = "3.7" || [ "${PYVER}" = "3.8" ]; then
-      conda create --quiet --yes -n testenv python=${PYVER} pip;
+      mamba create --quiet --yes -n testenv ${PYVER};
+    elif [ "${PYVER}" = "2.7" ] || [ "${PYVER}" = "3.6" ] || [ "${PYVER}" = "3.7" || [ "${PYVER}" = "3.8" ] || [ "${PYVER}" = "3.9" ]; then
+      mamba create --quiet --yes -n testenv python=${PYVER} pip pyopenssl;
     else
-      conda create --quiet --yes -n testenv python=${PYVER};
+      mamba create --quiet --yes -n testenv python=${PYVER} pyopenssl;
     fi
-  - source activate testenv
-  - if [ "${PYVER}" = "2.7" ] || [ "${PYVER}" = "3.6" ] || [ "${PYVER}" = "3.7" || [ "${PYVER}" = "3.8" ]; then
-      conda install --quiet --yes python=${PYVER} pip root;
-      source activate testenv;
+  - conda activate testenv
+  - if [ "${PYVER}" = "2.7" ] || [ "${PYVER}" = "3.6" ] || [ "${PYVER}" = "3.7" || [ "${PYVER}" = "3.8" ] || [ "${PYVER}" = "3.9" ]; then
+      mamba install --quiet --yes -n testenv python=${PYVER} pip root;
+      conda activate testenv;
     fi
   - pip install --upgrade setuptools-scm
   - pip install $NPY
@@ -64,10 +60,6 @@ install:
   - pip install cachetools pkgconfig lz4 zstandard xxhash mock requests "pytest>=3.9" pytest-runner
   - if [[ ${PYVER} = "2.7" ]] ; then pip install backports.lzma ; fi
   - pip install pandas
-  # pyopenssl is for deployment
-  - if [[ ${PYVER} != pypy* ]] ; then
-      conda install -c anaconda python=${PYVER} pyopenssl;
-    fi
   - wget -O tests/samples/Event.root http://scikit-hep.org/uproot/examples/Event.root
   - pip install pytest-error-for-skips
 
@@ -78,7 +70,7 @@ addons:
       - libatlas-base-dev
 
 script:
-  if [ "${PYVER}" = "2.7" ] || [ "${PYVER}" = "3.6" ] || [ "${PYVER}" = "3.7" || [ "${PYVER}" = "3.8" ]; then
+  if [ "${PYVER}" = "2.7" ] || [ "${PYVER}" = "3.6" ] || [ "${PYVER}" = "3.7" || [ "${PYVER}" = "3.8" ] || [ "${PYVER}" = "3.9" ]; then
     pytest --error-for-skips -v tests;
   else
     pytest -v tests;
diff --git a/LICENSE b/LICENSE
index 907761fc..6a45ffb6 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2017-2018, Jim Pivarski
+Copyright (c) 2017-2020, Jim Pivarski
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/appveyor.yml b/appveyor.yml
index 6041b2aa..0a20365b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -40,6 +40,21 @@ environment:
       PYTHON_ARCH: "64"
       NUMPY: "numpy>=1.15"
 
+    - PYTHON: "C:\\Python37"
+      PYTHON_VERSION: "3.7.x"
+      PYTHON_ARCH: "32"
+      NUMPY: "numpy>=1.15"
+
+    - PYTHON: "C:\\Python38"
+      PYTHON_VERSION: "3.8.x"
+      PYTHON_ARCH: "32"
+      NUMPY: "numpy>=1.15"
+
+    - PYTHON: "C:\\Python39"
+      PYTHON_VERSION: "3.9.x"
+      PYTHON_ARCH: "32"
+      NUMPY: "numpy>=1.15"
+
 install:
   - "SET PATH=%PYTHON%;%PATH%"
   - "python --version"
diff --git a/setup.py b/setup.py
index 94474ea9..b3c4c180 100755
--- a/setup.py
+++ b/setup.py
@@ -163,6 +163,7 @@ def get_description():
           "Programming Language :: Python :: 3.6",
           "Programming Language :: Python :: 3.7",
           "Programming Language :: Python :: 3.8",
+          "Programming Language :: Python :: 3.9",
           "Topic :: Scientific/Engineering",
           "Topic :: Scientific/Engineering :: Information Analysis",
           "Topic :: Scientific/Engineering :: Mathematics",
diff --git a/uproot/version.py b/uproot/version.py
index 2111047f..17273ffb 100644
--- a/uproot/version.py
+++ b/uproot/version.py
@@ -6,7 +6,7 @@
 
 import re
 
-__version__ = "3.12.1"
+__version__ = "3.13.0"
 version = __version__
 version_info = tuple(re.split(r"[-\.]", __version__))