What does this error message imply?
You tried to create a BDB pockets, which is the previous sort of pockets which is deprecated.
For context, Bitcoin Core helps two varieties of wallets:
- The previous sort (“BDB” wallets, named after the database format they use)
- The brand new sort (“descriptor” wallets, or “sqlite” wallets)
BDB wallets have been the one supported sort till Bitcoin Core 0.20.0. Since 0.21.0, descriptor wallets have been steadily launched as a brand new, extra trendy pockets format. The plan is that in some future model, maybe 29.0 or 30.0, it will not be attainable to make use of BDB wallets anymore, which is why since 26.0 the warning you are seeing is current.
If and when this removing of BDB assist occurs, conversion instruments will probably be supplied to transform BDB wallets to descriptor wallets, so no funds will probably be misplaced or something like that. Nevertheless, since some folks nonetheless use (very) previous variations of Bitcoin Core, after such a conversion, they could be unable to make use of the pockets in previous variations anymore, and so they may have new backups, which is why customers should be informed that it is occurring in any respect. Moreover, the instructions that work on these wallets differs a bit, which implies guides, and even different software program on high, could not work on descriptor wallets till it’s up to date to assist these.
You most likely simply need to create a descriptor pockets (the sixth argument is modified from false to `true):
bitcoin-cli createwallet identify false false password false true true
What’s a BDB pockets?
A pockets.dat file that makes use of the Berkeley DataBase format, and with a contents structured in a approach that (very) previous Bitcoin Core variations can learn.
What does it imply that its creation is “deprecated?”
It implies that creating such BDB pockets recordsdata remains to be attainable within the model you might have, nevertheless it probably will not be attainable anymore in some future model (which isn’t but launched). Since you might have enterprise practices that depend on utilizing BDB pockets recordsdata, it’s important that you just’re being made conscious of the truth that you are doing one thing that may cease working sooner or later.
In the event you actually need to create BDB pockets recordsdata nonetheless, you will want to run bitcoind with the -deprecatedrpc=create_bdb command-line possibility, to inform it you are conscious you are utilizing a function that’s scheduled for removing.
What is that this future launch?
Perhaps 29.0, or 30.0. It would not exist but.
Is the bitcoin core as downloaded a non-updated factor?
Bitcoin Core (intentionally) has no auto-update function. It’s going to replace everytime you select to put in a brand new model. You can select to maintain working the present one eternally, and BDB will maintain working then. Nevertheless, that additionally means you will not get bugfixes, new options that get added, or protocol enhancements that occur.
Or is it simply referring to a future replace that may happen as soon as sufficient nodes conform to it?
Different nodes have completely nothing to do with this. Bitcoin Core updates each time you replace it. There are protocol options that rely on a number of nodes talking the brand new model, however the pockets file format is a purely native choice that does not have an effect on different nodes.
As soon as a pockets is created, the place is its data saved on my laptop?
In a file within the information listing in your node, sometimes with a reputation “pockets.dat”, however it may be named something. Make backups of it.
Is it absolutely useful from the daemon?
Sure.
