I'm having trouble with the latest Bitcoin Core 26.0 on my Windows. It's saying something about unsupported stuff and peer corruption. Can someone help me out with a fix to get it running smoothly again?
"Again"? Was it working before?
What was the last version that you've used?
You need to provide more information than just giving vague descriptions of the issue.
For starters, write the actual errors that Bitcoin Core shown.
You may also provide the last logs from "debug.log" file so me and other members could analyze the possible cause of the errors.
Just start from the last "2024-month-day Time Bitcoin Core version v26.0.0 (release build)" line to the last line and paste it between [code][/code] tags.
For now, based from those words, I suspect that the former is about the pop-up saying legacy wallets being deprecated in future versions which isn't an issue for now.
The latter may be a corruption of your "peers.dat" file which can be safely deleted while Bitcoin Core is closed.
It's based from nothing but your "peers corruption" description, so getting the log is still recommended if it didn't work.
Both "debug.log" and "peers.dat" are both in your bitcoin data directory.
Default location in: en.bitcoin.it/wiki/Data_directory#Default_Location; otherwise, in the custom datadir that you've set.
Peers corruption probably refers to peers.dat file got corrupted. In such case, deleting that file (which located on where Bitcoin Core store blockchain data) should fix the problem, where Bitcoin Core will generate new ones. Other than that, please provide more information.