v0.22.1

Consensus & Network

• Remove the defunct dnsseed.electroncash.de DNS seed.

Mining

• Include the Upgrade9 (CashTokens) script flags when building block templates. Templates were previously validated with the bare StandardVerifyFlags, so on token-active networks valid CashToken transactions already in the mempool were dropped from the template, producing empty or near-empty blocks; the flags are now computed the same way the mempool and consensus block validation do.

Other

• Modernize sync/atomic usage with the typed atomic APIs and adopt WaitGroup.Go.