The reverts will continue until morale improves

PostgreSQL 19 experienced an unusually high number of feature reverts during its beta period—approximately 8 to 10 significant features—which the author attributes to a combination of factors including raised quality standards from improved LLM-assisted code review, features that proved too ambitious to complete on time, and senior developers being diverted to security issue fixes during the Vulnpocalypse period. The author notes that while some code quality issues contributed to the reverts, many edge cases that would have previously surfaced over years were caught faster by modern tools, creating a backlog of fixes that couldn't be completed before the deadline.