[CONTROLLER-1985] Remove support for datastore versions before Sodium SR1 Created: 02/Jul/21  Updated: 02/Jul/21  Resolved: 02/Jul/21

Status: Resolved
Project: controller
Component/s: clustering
Affects Version/s: None
Fix Version/s: 4.0.0

Type: Task Priority: Medium
Reporter: Robert Varga Assignee: Robert Varga
Resolution: Done Votes: 0
Labels: pt
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified


 Description   

Our general compatibility contract works out to requiring adjacent version to upgrade, yet we have kept historical versions around for multiple years – i.e. we have not removed compatibility since June 2016, when we pruned version earlier than Boron.

We currently support:

  • Boron since January 2016
  • Fluorine since June 2018
  • Neon SR2 since June 2019
  • Sodium SR1 since September 2019
  • Phosphorus since July 2021

Of these, only Sodium SR1+ can support our current data mapping natively, as older software did not have yang.common.Uint8 and friends.

Remove support for talking to anything older than Sodium SR1, which retains a ~2year backwards compatibility window.
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