Bump minimum required Bitcoin Core version from 0.18 to 22.0

[kristapsk]

There have been multiple vulnerabilities disclosed for older versions, we should not recommend people using them.

• Disclosure of memory DoS due to malicious P2P message - https://bitcoincore.org/en/2024/07/03/disclose-inv-buffer-blowup/
• Disclosure of CPU DoS due to malicious P2P message - https://bitcoincore.org/en/2024/07/03/disclose-getdata-cpu/
• Disclosure of crash due to malicious BIP72 URI - https://bitcoincore.org/en/2024/07/03/disclose-bip70-crash/
• Disclosure of netsplit due to malicious P2P messages by first 200 peers - https://bitcoincore.org/en/2024/07/03/disclose-timestamp-overflow/
• Disclosure of CPU/memory DoS due to many malicious peers - https://bitcoincore.org/en/2024/07/03/disclose-unbounded-banlist/
• Disclosure of censoring unconfirmed transactions to a specific victim - https://bitcoincore.org/en/2024/07/03/disclose_already_asked_for/
• Security advisories for bugs fixed as of Bitcoin Core v22.0 bitcoin-core/bitcoincore.org#1049

[kristapsk]

For reviewers - please check that I haven't missed any mentions of older Bitcoin Core versions somewhere.

[MarnixCroes]

cACK

here is a mention too

joinmarket-clientserver/docs/TESTING.md

Line 3 in 30874b7

Work in your `jmvenv` virtual environment as for all Joinmarket work. Make sure to have [bitcoind](https://bitcoin.org/en/full-node) 0.18 or newer installed. Also need miniircd installed to the root (i.e. in your `joinmarket-clientserver` directory):

[MarnixCroes]

why v20 and not 21?
there are also three disclosure for v20 version(s)

[kristapsk]

why v20 and not 21? there are also three disclosure for v20 version(s)

Ohh, right! Looked at https://bitcoincore.org recent posts, but they announced so many at the same time as separate posts that to see v20, one must open https://bitcoincore.org/en/blog/ with more history.

[kristapsk]

why v20 and not 21? there are also three disclosure for v20 version(s)

Ohh, right! Looked at https://bitcoincore.org recent posts, but they announced so many at the same time as separate posts that to see v20, one must open https://bitcoincore.org/en/blog/ with more history.

Updated from v20 to v21.

[MarnixCroes]

lgtm 902289c

[MarnixCroes]

new ones got disclosed, for <v22.
bitcoin-core/bitcoincore.org#1049

and iirc the next one will be disclosed in september and then another later this year.

I think bumping the min version still makes sense, just to keep in mind that it will need to be bumped more regularly

[kristapsk]

new ones got disclosed, for <v22. bitcoin-core/bitcoincore.org#1049

and iirc the next one will be disclosed in september and then another later this year.

I think bumping the min version still makes sense, just to keep in mind that it will need to be bumped more regularly

Thanks for notifying, updated to v22.

[kristapsk]

This had been open for long enough time, there were no objections, merging.