This release contains following features and improvements.
- New features
- support only_if #84
- support directory for command type #82
- simplify some keys of pipeline.yml #81
- cooperation with GitHub API #70
- support environment variables #67
- Bug fixes
- hide environment variable variables in log message #85
- fix runtime error when running walter without service block #80
- Misc Updates
- avoid Permission denied (publickey) on wercker #93
- fix typos #68 #74
