As more distributed computing systems are geographically decentralized, projects may be required to switch from SemVer (Semantic Versioning) for their versioning to CalVer (Calender Versioning) for their versioning. Here's an ongoing discussion by the Hyperledger TSC (Technical Steering Committee), we intend to follow the proposal page 
A coda. I find that there is hidden knowledge in versioning for example.
- Any version less than v1.0.0 is allowed to break comparability or is that v0.1.0. - Node is accepted unstable on odd versions, LTS versions are stable on even numbered versions (where is this written in slate).
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Milestones simpler... github