elasticsearch/docs/reference/migration/migrate_8_0/http.asciidoc

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[[breaking_80_http_changes]]
=== HTTP changes
//NOTE: The notable-breaking-changes tagged regions are re-used in the
//Installation and Upgrade Guide
//tag::notable-breaking-changes[]
// end::notable-breaking-changes[]
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==== Removal of old HTTP settings
The `http.tcp_no_delay` setting was deprecated in 7.x and has been removed in 8.0. It has been replaced by
`http.tcp.no_delay`.
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==== Changes to Encoding Plus Signs in URLs
Starting in version 7.4, a `+` in a URL will be encoded as `%2B` by all REST API functionality. Prior versions handled a `+` as a single space.
If your application requires handling `+` as a single space you can return to the old behaviour by setting the system property
`es.rest.url_plus_as_space` to `true`. Note that this behaviour is deprecated and setting this system property to `true` will cease
to be supported in version 8.