The difference is that in 13.0.0 it would connect to your "explorer" - which you anyway set to something private (not mempool.space), but now it would fallback to 2 hardcoded urls, one of them cloudflare.

optimism

Good catch! Actually, this feature got added in 

: Ah, now I see, it’s the fix that added that.

bitcoin

privacy

lightning

Zeus v13.0.1: "offline detection"

Good catch! Actually, this feature got added in [version 13.0.0](https://stacker.news/items/1479215). And in 13.0.1, they added a fix!

`cc`: @evankaloudis 

`edit`: Ah, now I see, it’s the fix that added that.