yum update for postgresql rpms

RHEL 7.9

PostgreSQL 12 (12.5.1 to 12.6.1)

I am updating RPMs for postgres and was interested to know whether this is indeed expected behavior for the rpm update:

When the "yum update" is executed, postgresql rpms are updated.  It looks at that point, postgresql (postmaster) processes automatically restart.  In the procedure I was building, I figured I'd need to stop/start postgres (systemctl stop postgresql-12, systemctl start postgresql-12), but that doesn't look to be necessary.

I don't recall this automatic postmaster restart occurring a few weeks ago when I went from 12.4.1 to 12.5.1 - perhaps it did, but I just stopped/re-started postgres unnecessarily.

Thanks,

Scott

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