4.0.0 Release

• BREAKING CHANGE: By default use Python 3.9.0 for base image
• Add new py39 flavour
• Update pip to 20.2.4
• Update poetry to 1.1.4
• Update pre-commit to 2.8.2
• Update tox to 3.20.1
• Update virtualenv to 20.1.0

3.5.0 Release

• Update py38 image to 3.8.5
• Update poetry to 1.0.10
• Update tox to 3.18.0

3.4.0 Release

• Update py38 image to 3.8.4
• Update py37 image to 3.7.8
• Update py36 image to 3.6.11
• Update pre-commit to 2.6.0
• Update tox to 3.17.0
• Update virtualenv to 20.0.27

3.3.0 Release

• Update py38 image to 3.8.3
• Update py37 image to 3.7.7
• Update pip to 20.1.1
• Update pre-commit to 2.4.0
• Update tox to 3.15.1
• Update virtualenv to 20.0.21
• Add g++ 8.3.0
• Add gettext 0.19.8.1
• Add rsync 3.1.3

3.2.0 Release

• Update py38 image to use Python 3.8.2
• Update poetry to 1.0.5
• Update pip to 20.0.2
• Update pre-commit to 2.1.1
• Update tox to 3.14.5
• Update virtualenv to 20.0.7

3.1.0 Release

• Update py38 image to 3.8.1
• Update py37 image to 3.7.6
• Update py36 image to 3.6.10
• Update poetry to 1.0.2
• Update pre-commit to 1.21.0
• Update tox to 3.14.3
• Update virtualenv to 16.7.9

3.0.0 Release

• Update poetry to 1.0.0
• Update tox to 3.14.2
• Final 3.0.0 release, which highlights:
  • py38 as default image
  • Drop py35 image
  • Use slim-buster images for py36, py37 & py38
  • Install poetry 1.0.0

3.0.0b2 Release

• Update poetry to 1.0.0b8
• Update virtualenv to 16.7.8

3.0.0b1 Release

• Update poetry to 1.0.0b5
• Update tox to 3.14.1

3.0.0b0 Release

• Introduce py38 base image and make it default
• As there is no slim-stretch flavor for py38 use slim-buster instead
• Upgrade to poetry==1.0.0b4 as it only version to work on py38