More like the former. There was indeed a deliberate omission in the past standard called Han unification [1], but it's now pretty much toned down thanks to the

More like the former. There was indeed a deliberate omission in the past standard called Han unification [1], but it's now pretty much toned down thanks to the expansion of Unicode codepoint space in 2.0, following subsequent disunification processes and the eventual introduction of Ideographic Variation Database [2] to handle remaining cases. [1] https://en.wikipedia.org/wiki/Han_unification https://en.wikipedia.org/wiki/Han_unification [2] https://unicode.org/ivd/ https://unicode.org/ivd/