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Changes to the economic rules are never minor things, and are subject to community and stakeholder approval. In this particular case, these are some of the most significant changes ever made, with the possible exception of HF16. The creation of an entirely separate reward pool for comments and increasing the delay for the first payout by about 7x (sometimes a bit less if payouts are extended due to late voting) are especially significant. I agree there are other minor changes and bug fixes included which no one would see any reason to not approve. The exact same situation presented in HF14, and in that case it was decided instead to delay and revise the release link