After applying patches, kernel version is slower?

Hi all,

I have applied the recent patches for OpenBSD 6.1 in two hosts and I see a strange behavior. In a non-patched OpenBSD 6.1 host, uname -a returns:

OpenBSD tnobsd02.mydom.org 6.1 GENERIC#19 amd64

.. and in an OpenBSD 6.1 host with patches applied:

OpenBSD extobsd01.mydom.org 6.1 GENERIC#4 amd64

Any idea why??

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Greetings,
C. L. Martinez