Speedle releases
Use the GitHub Releases page for published versions and release notes. v1.6.0 is the version pinned by the current embedded Go walkthrough. Use an explicit released version for reproducible module dependencies; the embedded guide explains the setup.
Historical Oracle Speedle release
Version 0.1.0 was the original open-source release, including policy management, authorization decisions, the command-line tool and integration samples. The historical 0.2.0 planning note is not the current Speedle release roadmap.