9. Upgrade Pig

On all the Pig clients, execute the following command:
- For RHEL/CentOS:
```
yum upgrade pig          
```
- For SLES:
  Run the following commands:
```
zypper up pig
```
- For Ubuntu:
```
apt-get install pig
            
```
You must replace your configuration after upgrading. Copy /etc/pig/conf from the template to the conf directory in pig hosts.