<blockquote>
  <p>Can I still use that version, or do I have to upgrade to the latest Bitcoin Core?</p>
</blockquote>

<p>You can still use that version. I would upgrade to the latest stable version, though.</p>

<blockquote>
  <p>Besides backing up my wallet, should I do anything in preparation before I reconnect the old computer to the Internet, or before upgrading software?</p>
</blockquote>

<p>No, you're good.</p>

CC BY-SA 3.0
2017-03-09T09:58:21.973Z
"I would upgrade to the latest stable version, though." → Since you'll have to catch up on two years worth of transactions which happened in a much larger volume, you'll be much faster with all the code improvements and optimizations added in the newer versions of Bitcoin Core.
Murch
CC BY-SA 3.0
2017-03-09T02:45:11.797Z
2017-03-09T02:45:11.797Z
Nick ODell
<p>I used to mine bitcoins and stopped about two years ago. At that time I was using Bitcoin-QT 0.8.5 Beta. The computer has been powered off since then, and my wallet.dat is still on that computer.</p>

<p>Can I still use that version, or do I have to upgrade to the latest Bitcoin Core? Besides backing up my wallet, should I do anything in preparation before I reconnect the old computer to the Internet, or before upgrading software? It says the wallet is out of sync and the block is 95 weeks behind.</p>

<p>Any guidance will be appreciated.</p>

<p>Thanks.</p>

<bitcoin-core>
Bitcoin-qt 0.8.5 upgrade
ziae
# Bitcoin-qt 0.8.5 upgrade

(Asked by: username_0 on 2017-03-09)

I used to mine bitcoins and stopped about two years ago. At that time I was using Bitcoin-QT 0.8.5 Beta. The computer has been powered off since then, and my wallet.dat is still on that computer.

Can I still use that version, or do I have to upgrade to the latest Bitcoin Core? Besides backing up my wallet, should I do anything in preparation before I reconnect the old computer to the Internet, or before upgrading software? It says the wallet is out of sync and the block is 95 weeks behind.

Any guidance will be appreciated.

Thanks.

**Tags:** bitcoin-core


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## 1 answers

### Answer by username_1 on 2017-03-09. Score: 3 | Accepted answer

> Can I still use that version, or do I have to upgrade to the latest Bitcoin Core?

You can still use that version. I would upgrade to the latest stable version, though.

> Besides backing up my wallet, should I do anything in preparation before I reconnect the old computer to the Internet, or before upgrading software?

No, you're good.

> **Comments:**
> **username_2**: "I would upgrade to the latest stable version, though." → Since you'll have to catch up on two years worth of transactions which happened in a much larger volume, you'll be much faster with all the code improvements and optimizations added in the newer versions of Bitcoin Core.  

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