Roderick(hru...@gmail.com) on 2019.12.21 19:50:03 +0000: > > On Thu, 19 Dec 2019, Theo de Raadt wrote: > > > for 6.5 onwards, all you had to was type > > > > sysmerge > > sysupgrade > > I read somewhere that something like this was coming for 6.6, but > I remember that I followed the instructions for upgrading from 6.5 > to 6.6, and this was to be done manually, I had to delete acording > to the instructions some files. > > Since upgrading twice a year is something like a must for OpenBSD, > this new feature is more than welcome, although manual upgrading > was never something difficult. Thanks.
You should still read the upgrade guide and indeed you will have to remove some things yourself, in addition to telling you about config and command option changes. For 65 -> 66 there were instructions to remove some old (perl) manpages and old X drivers as well some include files. Nothing really problematic, the worst thing that can happen is that you read an outdated manpage or some 3rd party software will have problems because of an outdated .h file.
