All passports

Under application form, there's one requirement under other documents.
All previous passports, travel documents or national IDs that you have used to travel to or remain in the UK.

Current passport issued 8 years ago.
Does this requirement apply to just the 5 year period which application based on? In that case just the current passport as everything during this 5 years are all on it?

Been in the uk on other visa category over 10 years ago, or do I need to include that now expired passport? I don't have that with me.

A bit confused, much appreciated if someone can explain this.
Reading some older topics, I can see some people only scan current passport stamped pages since the entry date of the 5 year their application based on.

You just need to provide any passport you used during your ILR qualifying period, so for you it is the last 5 years