Cross Reference: /frameworks/support/preference/api_legacy

`Name`	`Date`	`Size`
Up to higher level directory
`26.0.0.txt`	21-Aug-2018	`25.3K`
`26.1.0.txt`	21-Aug-2018	`25.3K`
`27.0.0.txt`	21-Aug-2018	`25.3K`
`27.1.0.txt`	21-Aug-2018	`31.7K`
`28.0.0-alpha1.txt`	21-Aug-2018	`31.7K`
`current.txt`	21-Aug-2018	`31.7K`