I'm pleased to announce the release of Vagrant 1.9.6. This release contains a number of improvements and bug fixes. The docker provisioner contains a new `post_install_provisioner` option to support customizing docker after it has been installed but prior to Vagrant running the provisioning action. Hyper-V box installation has been fixed and the more configuration options have been added to the SSH communicator.
The installer packages received updates in this release as well. The Ruby version has been updated to 2.3.4 and all builtin executables have been updated to more recent versions. The Windows packages now include executables Vagrant expects like rsync and SSH removing the requirement of installing extra packages.
The full list of updates can be found in the CHANGELOG: