Fully updated systems. A small query please.

I noticed that with kernel linux-next-5.11.0-1 the buildinfo says
"intel-ucode-20201118-1-x86_64" but the output in the journal is:-
"journalctl -b | grep microcode
Feb 24 14:08:58 Airtop3 kernel: microcode: microcode updated early to revision 0xde, date = 2020-05-24
Feb 24 14:08:58 Airtop3 kernel: microcode: sig=0x906ed, pf=0x2, revision=0xde
Feb 24 14:08:58 Airtop3 kernel: microcode: Microcode Update Driver: v2.2."
Updated to kernel linux-next-5.11.1-1 from build repo and the buildinfo says
"intel-ucode-20210216-1-x86_64" but the journal output remains at:-
journalctl -b | grep microcode
Feb 24 14:08:58 Airtop3 kernel: microcode: microcode updated early to revision 0xde, date = 2020-05-24
Feb 24 14:08:58 Airtop3 kernel: microcode: sig=0x906ed, pf=0x2, revision=0xde
Feb 24 14:08:58 Airtop3 kernel: microcode: Microcode Update Driver: v2.2.

Both ucodes have been updated.
intel-ucode-20201118-1
intel-ucode-20210216-1

On my other PC using linux-next-5.11.0-1 the output is :-

Airtop1 kernel: microcode: microcode updated early to revision 0x22, date = 2019-11-12

OK Demm, many thanks. I thought that was likely the reason but was not certain.