[ please don't top-quote, it makes the conversation hard to follow ] David Mullineux <dmullx@xxxxxxxxx> writes: > On Wed, 20 Nov 2024, 15:46 Tom Lane, <tgl@xxxxxxxxxxxxx> wrote: >> Yeah. Also, are you building with openssl, or not? > No, not at all! If you're not using openssl, then gen_random_uuid basically devolves to a read of /dev/urandom. Maybe you're using a different kernel than before, and it has different properties around that? regards, tom lane