versions:
  - number: "2.6"
    date: 2018-01-15
    description: conversion from framemaker
  - number: "2.7"
    date: 2018-04-09
    description: minor editing for first draft
  - number: "2.8"
    date: 2018-07-02
    description: more editing
  - number: "2.9"
    date: 2018-07-26
    description: public review draft
  - number: "3.0"
    date: 2019-01-18
    description: workgroup note
    download: https://files.openpower.foundation/s/DwnMymtj9BRQQ2y