<p>You can set Bitcoin Core to run in testnet4 mode by putting <code>chain=testnet4</code> or <code>testnet4=1</code> in the configuration, or by using equivalent command-line options (<code>-chain=testnet4</code> or <code>-testnet4</code>).</p>
<p>This is contrasted with the options available for testnet3: <code>chain=test</code>, or <code>chain=testnet</code>, or <code>testnet=1</code> (and equivalent command-line options <code>-chain=test</code>, <code>-chain=testnet</code>, or <code>-testnet</code>).</p>

CC BY-SA 4.0
2024-10-10T16:32:40.937Z
Thanks you for the answer
Dmitriy Shalaev
CC BY-SA 4.0
2024-12-12T17:54:48.293Z
I also had to change section header `[test]` to `[testnet4]` in bitcoin.conf to properly enable my `rpcbind` config
Donn Lee
CC BY-SA 4.0
2024-10-09T13:28:52.660Z
2024-10-09T14:04:39.277Z
2024-10-09T14:04:39.277Z
Pieter Wuille
<p><a href="https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-28.0.md#testnet4bip94-support" rel="nofollow noreferrer">https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-28.0.md#testnet4bip94-support</a> released.</p>
<p>Is it possible to enable <strong>testnet4</strong> via <code>bitcoin.conf</code>? How?</p>
<p>Right now in my config - <code>chain=test</code> and its works with <strong>testnet3</strong></p>

<bitcoin-core><bitcoind><testnet><bitcoin.conf>
How can I enable testnet4 in Bitcoin Core 28.0?
Dmitriy Shalaev
# How can I enable testnet4 in Bitcoin Core 28.0?

(Asked by: username_0 on 2024-10-09)

<https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-28.0.md#testnet4bip94-support> released.

Is it possible to enable **testnet4** via `bitcoin.conf`? How?

Right now in my config - `chain=test` and its works with **testnet3**

**Tags:** bitcoin-core, bitcoind, testnet, bitcoin.conf


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## 1 answers

### Answer by username_1 on 2024-10-09. Score: 2 | Accepted answer

You can set Bitcoin Core to run in testnet4 mode by putting `chain=testnet4` or `testnet4=1` in the configuration, or by using equivalent command-line options (`-chain=testnet4` or `-testnet4`).

This is contrasted with the options available for testnet3: `chain=test`, or `chain=testnet`, or `testnet=1` (and equivalent command-line options `-chain=test`, `-chain=testnet`, or `-testnet`).

> **Comments:**
> **username_0**: Thanks you for the answer  
> **username_2**: I also had to change section header `[test]` to `[testnet4]` in bitcoin.conf to properly enable my `rpcbind` config  

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