Merge branch 'hotfix/container_id'
*optional hex
Merge branch 'develop'
*change name
fix version
v1.2.0
Merge branch 'master' of github.com:AnotherPiece/beacon-attached
*hotfix)version spec
*hotfix)hex is nil
v1.2.1
Merge branch 'release/v1.2.1' into develop