My testnet node is displaying a value in the getblockchaininfo warnings field related to versionbit 28, which I see referenced in various threads going back years.
The angles I'm trying to address are:
If I'm running the most recent version of core, is it still typical to see unknown rules once in a while? Should this situation be considered an unsupported softfork or something different?
Where can I find out how to support newly activated rules i.e. what actions to take?
Is this only some quirk because Bitcoin Classic forked on testnet (see here)?
Here is some info from bitcoin-cli:
--version
Bitcoin Core RPC client version v25.1
Copyright (C) 2009-2023 The Bitcoin Core developers
Please contribute if you find Bitcoin Core useful. Visit
<https://bitcoincore.org/> for further information about the software.
The source code is available from <https://github.com/bitcoin/bitcoin>.
This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or <https://opensource.org/licenses/MIT>
-getinfo
Chain: test
Blocks: 2537535
Headers: 2537535
Verification progress: 100.0000%
Difficulty: 85961336.19616741
Network: in 1, out 11, total 12
Version: 250100
getblockchaininfo
...
"warnings": "Unknown new rules activated (versionbit 28)"
