David A. Harding on Nostr: There's a history of discussion and implementation here: ...

There's a history of discussion and implementation here: https://bitcoinops.org/en/topics/anchor-outputs/

The summaries aren't detailed, especially not about motivation, but they do point to some conversations that may have been important at the time but would be a bit hard to find now (e.g., they used the old "simplified commitments" name).

See also: https://bitcoinops.org/en/topics/cpfp-carve-out/