Dry rotted tyres on utility hybrid bike

[Afasoas]

Whilst cleaning and servicing the Gas Pipe Hybrid yesterday, I noted both it's Continental Contact tyres were moderately dry-rotted. Most noticeable on the sidewalls, but the tread looks to be affected also.
I'm thinking I should swap them out as I'm regularly doing moderately hilly rides and occasionally get some speed up on the descents.

Would you?

[L CC]

Yes.
Otherwise you're just waiting for them to go.

[paton]

"Dry rotted..."?

Continental has some advice on storing / looking after tyres.

https://www.continental-tyres.co.uk/b2c/tyre-knowledge/tyre-storage-recommendations/

[Afasoas]

Garage qualifies as dark, dry and well ventilated.

I think these tyres were on the bike when I got it, which could be upwards of 8 years ago.
Not sure when the bike was manufactured. The hubs on the bike date back to 1995 ... I know it's had some parts swapped around so I don't know what is/what isn't original equipment.

So those tyres are somewhere between ~8 and ~29 years old.

I've got some Pirelli Cycl-e Crossterrain XT's on order - meant for e-Bikes but should do the job just fine.