040000 tree c23892352179dd86b2be813cb943175468565fa7	0.5.2
040000 tree abfa685d7a2ed16cb88badad66fd644c22a2ff82	0.5.3
040000 tree fb57c06f52acdcd8343f2c60e96537e9fe12f77f	0.5.4
040000 tree 458b9660dda4a6285465e9d35433808aa9d4865f	0.6.0