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Update upgrade-specific.html.md

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James Phillips 2017-07-17 14:11:08 -07:00 committed by GitHub
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@ -14,6 +14,14 @@ details provided for their upgrades as a result of new features or changed
behavior. This page is used to document those details separately from the behavior. This page is used to document those details separately from the
standard upgrade flow. standard upgrade flow.
## Consul 0.9.0
#### Sciript Checks Are Now Opt-In
A new [`enable_script_checks`](/docs/agent/options.html#_enable_script_checks) configuration option was added, and defaults to `false`, meaning that in order to allow an agent to run health checks that execute scripts, this will need to be configured and set to `true`. This provides a safer out-of-the-box configuration for Consul where operators must opt-in to allow script-based health checks.
If your cluster uses script health checks please be sure to set this to `true` as part of upgrading agents. If this is set to `true`, you should also enable [ACLs](https://www.consul.io/docs/guides/acl.html) to provide control over which users are allowed to register health checks that could potentially execute scripts on the agent machines.
## Consul 0.8.0 ## Consul 0.8.0
#### Upgrade Current Cluster Leader Last #### Upgrade Current Cluster Leader Last