I have a old bitcoin core wallet 0.12.0 ... I tried to transfer bitcoin from this to a new Coinbase wallet 2 days ago... Nothing has shown up in Coinbase wallet and the status of the transation in bitcoincore shows sent - but with a ! and status 0/unconfirmed.... is this transaction ever going to work or is there a way to cancel? I dont seem to be able to do anything with it now... so am concerned about how I can I get bitcoin from this old wallet?

It also has years worth of syncing to do to catch up

  • You must wait untill the blockchain to catch up for your old wallet to send the transaction.
    – ecavero
    Mar 2 '20 at 14:44

Export your private key(s) from 0.12.0 and import into a more recent version of the wallet, send from the newer version.

  • That won't solve anything, as he'd still need to synchronize the new wallet. Mar 3 '20 at 22:36
  • there are types of wallets other than full nodes that allow importing private keys. syncing a new full node is an option, but not the only option.
    – j4ys0n
    Mar 4 '20 at 23:31
  • Of course, but "a more recent version of the wallet" in this case refers to Bitcoin Core, no? You could alternatively suggest importing into different wallet software, but that's a lot more complicated Mar 4 '20 at 23:34
  • it's definitely not more complicated. check this out. bitcoinelectrum.com/importing-your-private-keys-into-electrum
    – j4ys0n
    Mar 4 '20 at 23:49
  • That's still a lot more steps than just upgrading your Bitcoin Core version! Anyway, it seems strange that I'm arguing about what your answer means. I clearly misinterpreted it; you didn't mean upgrading Bitcoin Core, but transitioning to software with a different model entirely. Mar 4 '20 at 23:52

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