This relates to recent changes proposed to naming conventions, generally that with the upcoming merge we label the layers after their purpose as opposed to series.
Categories:
Ethereum 1.x Ring → Execution Layer
(this topic is general and often involves execution layer research, perhaps it could be described w/ WG or Research?)
Tags:
eth2 → consensus-layer
eth1.x → execution-layer
eth1-eth2-merger → the-merge OR the-merge-2021