Downgrade the Scalyr Agent

This article pertains to the Linux, Windows, Docker, and Kubernetes agents.  

How do I downgrade the Scalyr Agent? 

1. Stop the agent 

scalyr-agent-2 stop

2. Identify your system and modify the version number in the URL/Tag and download
i.e. /scalyr-agent-2-2.1.14-1.noarch.rpm 

• For systems that use yum (except CentOS 5 or RHEL5), download the RPM from:
  https://www.scalyr.com/scalyr-repo/stable/latest/scalyr-agent-2-2.1.14-1.noarch.rpm
• For systems that use apt-get, download the Debian package from:
  https://www.scalyr.com/scalyr-repo/stable/latest/scalyr-agent-2_2.1.14_all.deb
• For older distributions such as CentOS 5 or Redhat Enteprise Linux 5, download this RPM:
  https://www.scalyr.com/scalyr-repo/stable/latest/scalyr-agent-2-2.1.14-1.alt.noarch.rpm
• For systems that do not use yum or apt-get, you may download a tarball from here:
  https://www.scalyr.com/scalyr-repo/stable/latest/scalyr-agent-2.1.14.tar.gz
• For Windows system, you can download an installer from
  https://www.scalyr.com/scalyr-repo/stable/latest/ScalyrAgentInstaller-2.1.14.msi
• For Kubernetes systems
  https://raw.githubusercontent.com/scalyr/scalyr-agent-2/v2.1.14/k8s/no-kustomize/scalyr-agent-2.yaml
• For Docker systems using the JSON File logging driver
  docker pull scalyr/scalyr-agent-docker-json:2.1.14
• For Docker systems using the syslog logging driver
  docker pull scalyr/scalyr-agent-docker-syslog:2.1.14

3. Copy your agent.json, agent.d directory, and checkpoint files to be safe (Linux/Windows) 

Checkpoints
/var/lib/scalyr-agent-2/*checkpoints.json
C:\Program Files (x86)\Scalyr\data\*checkpoints.json

Config
/etc/scalyr-agent-2/**
C:\Program Files (x86)\scalyr\config\**

4. Uninstall
5. Reinstall install according to the respective documentation
Linux, Windows, Docker (Json/Syslog), Kubernetes
6. Replace the config and checkpoint (if they were not retained in the downgrade)