anchor.diff:  
   === RequestRateLimiter GatewayFilter Factory
   
  -The RequestRateLimiter GatewayFilter Factory is uses a `RateLimiter` implementation to determine if the current request is allowed to proceed. If it is not, a status of `HTTP 429 - Too Many Requests` (by default) is returned.
  +The `RequestRateLimiter` GatewayFilter Factory is uses a `RateLimiter` implementation to determine if the current request is allowed to proceed. If it is not, a status of `HTTP 429 - Too Many Requests` (by default) is returned.
   
   This filter takes an optional `keyResolver` parameter and parameters specific to the rate limiter (see below).
   
  
positive.code: You can find more information on how Hystrix works with Gateway in the <<hystrix, Hystrix GatewayFilter Factory section>>.
  
  === MapRequestHeader GatewayFilter Factory
  The MapRequestHeader GatewayFilter Factory takes 'fromHeader' and 'toHeader' parameters. It creates a new named header (toHeader) and the value is extracted out of an existing named header (fromHeader) from the incoming http request. If the input header does not exist then the filter has no impact. If the new named header already exists then it's values will be augmented with the new values.
  
  .application.yml
  [source,yaml]
  
negative.code: ----
  
  === SetStatus GatewayFilter Factory
  The `SetStatus` GatewayFilter Factory takes a single `status` parameter. It must be a valid Spring `HttpStatus`. It may be the integer value `404` or the string representation of the enumeration `NOT_FOUND`.
  
  .application.yml
  [source,yaml]
  