How to upgrade to the latest Bitcoin Core version

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Mattias Geniar, May 02, 2019

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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.



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