updated changelog

rs/nns/governance/unreleased_changelog.md

@@ -13,7 +13,7 @@ on the process that this file is part of, see
 
 Two new fields are added to the request, and one to the response.
 
-The request now supports `page_size` and `page_number`.  If `page_size` is greater than 
+The request now supports `page_size` and `page_number`.  If `page_size` is greater than
 `MAX_LIST_NEURONS_RESULTS` (currently 500), the API will treat it as `MAX_LIST_NEURONS_RESULTS`, and
 continue procesisng the request.  If `page_number` is None, the API will treat it as Some(0)
 
@@ -22,7 +22,7 @@ additional requests need to be made.
 
 This will only affect neuron holders with more than 500 neurons, which is a small minority.
 
-This allows neuron holders with many neurons to list all of their neurons, whereas before, 
+This allows neuron holders with many neurons to list all of their neurons, whereas before,
 responses could be too large to be sent by the protocol.
 
 ### Periodic Confirmation
@@ -78,6 +78,10 @@ No neurons are actually migrated yet.
   was default to true before, and now it's default to true. More details can be found at:
   https://forum.dfinity.org/t/listneurons-api-change-empty-neurons/40311
 
+* `add_node` will now also automatically replace a node if it is being redeployed and has
+  been active as an API boundary node before. It will fail if the redeployed node does not
+  meet the requirements for an API boundary node (i.e., is configured with a domain name).
+
 ## Deprecated
 
 ## Removed