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website: add upgrading note for Near param in PQ's

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Ryan Uber 2016-07-01 12:26:14 -07:00
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website/source/docs/upgrade-specific.html.markdown
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@ -14,6 +14,21 @@ 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
standard upgrade flow.
## Consul 0.7
Consul version 0.7 adds a feature which allows prepared queries to store a
["Near" parameter](/docs/agent/http/query.html#near) in the query definition
itself. This feature enables using the distance sorting features of prepared
queries without explicitly providing the node to sort near in requests, but
requires the agent servicing a request to send additional information about
itself to the Consul servers when executing the prepared query. Agents prior
to 0.7.0 do not send this information, which means they are unable to properly
execute prepared queries configured with a `Near` parameter. Similarly, any
server nodes prior to version 0.7.0 are unable to store the `Near` parameter,
making them unable to properly serve requests for prepared queries using the
feature. It is recommended that all agents be running version 0.7.0 prior to
using this feature.
## Consul 0.6.4
Consul 0.6.4 made some substantial changes to how ACLs work with prepared