How to upgrade to the latest Bitcoin Core version

Mattias Geniar, Thursday, May 2, 2019

This guide assumes you've followed my other guide, where you compile Bitcoin Core from source. These steps will allow you to upgrade a running Bitcoin Core node to the latest version.

Stop current Bitcoin Core node

First, stop the running version of the Bitcoin Core daemon.

$ su - bitcoin
$ bitcoin-cli stop
Bitcoin server stopping

Check to make sure your node is stopped.

$ bitcoin-cli status
error: Could not connect to the server 127.0.0.1:8332

Once that's done, download & compile the new version.

Install the latest version of Bitcoin Core

To do so, you can follow all other steps to self-compile Bitcoin Core.

In those steps, there's a part where you do a git checkout to a specific version. Change that to refer to the latest release. In this example, we'll upgrade to 0.18.0.

$ git clone https://github.com/bitcoin/bitcoin.git
$ cd bitcoin
$ git checkout v0.18.0

And compile Bitcoin Core using the same steps as before.

$ ./autogen.sh
$ ./configure
$ make -j $(nproc)

Once done, you have the latest version of Bitcoin Core.

Start the Bitcoin Core daemon

Start it again as normal;

$ bitcoind --version
Bitcoin Core Daemon version v0.18.0
$ bitcoind -daemon
Bitcoin server starting

Check the logs to make sure everything is OK.

$ tail -f ~/.bitcoin/debug.log
Bitcoin Core version v0.18.0 (release build)
Assuming ancestors of block 0000000000000000000f1c54590ee18d15ec70e68c8cd4cfbadb1b4f11697eee have valid signatures.
Setting nMinimumChainWork=0000000000000000000000000000000000000000051dc8b82f450202ecb3d471
Using the 'sse4(1way),sse41(4way),avx2(8way)' SHA256 implementation
Using RdSeed as additional entropy source
Using RdRand as an additional entropy source
Default data directory /home/bitcoin/.bitcoin
...

And you're now running the latest version.



Hi! My name is Mattias Geniar. I'm a Support Manager at Nucleus Hosting in Belgium, a general web geek & public speaker. Currently working on DNS Spy & Oh Dear!. Follow me on Twitter as @mattiasgeniar.

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