Rewrite asdf in Golang The rewrite in Go was spread across 88 pull requests that are all included in this release. The primary goal of the rewrite was to create a codebase that was faster, simpler and easier to maintain. The rewrite tries to maintain feature parity with the previous version. However, a number of breaking changes were introduced. Some of these were due to the change of language, a few out of a desire to simplify the code, and some to improve the user experience. For the full list of breaking changes and the upgrade guide visit the Upgrading to 0.16.0 page on the asdf website. It is highly recommended that you read this guide before upgrading.