the id change was actualy much needed for the modding community. As there was only 65 536 possible IDs which in some modpacks was not enough especially accounting microblocks. And also you had massive ID conflicts that you had to manually set in configs every time. Because there was no separation of ids per mod.

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chadgpt3 22 days ago | parent [-]

In 1.7 there was automatic ID allocation. The limit could have been expanded to 4 bytes.

	▲	Filligree 21 days ago \| parent [-]
		Having run multiple 1.7 servers, the automatic ID allocation only sort of worked. It was by far the biggest headache.