Upgraded. Same subdomain. Previous links sent in emails don’t work.
Tested this solution by simply changing view to payment, it didn’t work. Same 404 error.
I’m not sure what is happening here, I haven’t used redirects like this to forward requests from v4 to v5, the suggested method is to install on a new domain and using the enable forwarding feature.
Guessing something changed between now and then if the work around worked for that poster. I see now the url structure is completely different.
A new subdomain wasn’t an easy change and I’m not sure why it’s not easier to replace v4 with v5 through an upgrade process. I get it’s a big code change but we invested in the our invoicing url and getting our customers to use that login, it’s also in our branding.