Bitcoin Core Official Release Important Security Notice: Versions 30 and 30.1 have been found to have a serious vulnerability when handling migration of legacy BDB format wallets. Although this situation is extremely rare, in the worst-case scenario, it could lead to wallet files in the node being incorrectly deleted. Without backups, this means funds could be permanently unrecoverable.



Good news is, this vulnerability only affects the process of migrating legacy wallets. If you normally use Bitcoin Core or your wallet is already in the new format, there is no need to worry. Existing wallets will not be affected.

The official team has confirmed that this issue will be fixed in version 30.2. Before the new version is released, it is strongly recommended that all users suspend any wallet migration operations. If you do need to migrate your wallet, the safest approach is to wait for the 30.2 update.
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ProofOfNothingvip
· 01-07 07:50
That's why I never upgrade casually; let's talk about it later.
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SignatureLiquidatorvip
· 01-07 07:42
Luckily, I didn't rush to upgrade. This round is okay.
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ProbablyNothingvip
· 01-07 07:37
Don't touch versions 30 and 30.1 anymore, wait for 30.2, bro.
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consensus_whisperervip
· 01-07 07:35
Another wallet deletion drama, luckily I have long since made backups a habit.
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LightningLadyvip
· 01-07 07:30
Damn, another bug? Every upgrade makes me nervous. --- Luckily, I didn't touch the wallet. I really can't handle this kind of thing. --- Wait, should I check my backups... --- Version 30.2, come out quickly, stop messing around, I can't take it. --- Rare as hell, there's never a dull moment in the crypto world. --- Fortunately, there's no old wallet migration needed, or I would have been scared to death. --- Backups are really a lifesaver, everyone. --- What are these people testing for? --- Upgrading and losing all the funds, that's really something.
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