versions:
  - number: "0.1"
    date: 2015-09-01
    description: creation based on IBM FSI spec contib
  - number: "0.2"
    date: 2015-09-02
    description: comment correction as per review
  - number: "0.3"
    date: 2016-05-05
    description: public review draft
  - number: "0.4"
    date: 2016-08-16
    description: correction chapter 1 added definition & chapter 4 typo
  - number: "1.0.0"
    date: 2016-12-12
    description: workgroup specification
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