Old DSM patches

[Jan Schoenig]

I am trying to re-use my old NAS 212j, running on DSM 4.0-2219 currently.
In order to get to the latest DSM - Synology is telling me in the Download Center that I have to rund several patches first.
But unfortunately none of these is provided.
Does one out of this forum have old patches:
4.3-3827
5.0-4528
5.2-5967
6.0.3-8754
Thanks Jan

 

[plang.pl]

I only know this link https://archive.org/details/synology_dsm_5.2