The Ubuntu Xenial 16.04 build environment has been updated!
- git now uses wire protocol version 2 to do its network operations, like
git fetchorgit clone - docker pulls from the GCE image cache where possible
- PHP version aliases are now recognized
Aside from the highlights above, pre-installed languages and tools have also been updated. Here's the full list: https://docs.travis-ci.com/user/build-environment-updates/2019-04-11/
To use Xenial in your builds, make sure to specify dist: xenial in your .travis.yml file.
If you have any feedback, please, let us know in the community forum: Xenial. Thank you!