Install and enable a later version of curl - Alibaba Cloud Linux

Alibaba Cloud Linux 2 ships with curl 7.29.0 by default. If your workload requires curl 7.61.1, install it from the Alibaba Cloud experimentals repository — a separate software collection that runs alongside the system curl without replacing it.

How it works

Alibaba Cloud Linux 2 does not support in-place curl upgrades to avoid breaking system components that depend on the default version. Instead, curl 7.61.1 is packaged as the httpd24 software collection and installed under /opt/rh/httpd24/, isolated from the system-wide curl binary. You activate it per shell session using a source command.

Prerequisites

Before you begin, ensure that you have:

An Alibaba Cloud Linux 2 instance
sudo privileges on the instance

Install and activate curl 7.61.1

Install the Alibaba Cloud experimentals repository.
```
sudo yum install -y alinux-release-experimentals
```

Install httpd24-curl and its development library.

sudo yum install -y httpd24-curl
sudo yum install -y httpd24-libcurl-devel

Activate curl 7.61.1 in the current shell session.
Note
This command activates curl 7.61.1 only for the current shell session. Opening a new terminal or rebooting the instance reverts to the system default (7.29.0). To activate curl 7.61.1 automatically, add the source command to your shell profile (for example, ~/.bashrc).
```
source /opt/rh/httpd24/enable
```
Verify the installed version.
```
curl --version
```
The output confirms that curl 7.61.1 is active.