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-rw-r--r--doc/release-notes.md4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/release-notes.md b/doc/release-notes.md
index 0f248494c7..a0ab9b82b5 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -105,6 +105,10 @@ Low-level changes
RPC
---
+- The RPC server can process a limited number of simultaneous RPC requests.
+ Previously, if this limit was exceeded, `bitcoind` would respond with
+ [status code 500 (`HTTP_INTERNAL_SERVER_ERROR`)](https://en.wikipedia.org/wiki/List_of_HTTP_status_codes#5xx_server_errors).
+ Now it returns status code 503 (`HTTP_SERVICE_UNAVAILABLE`). (#18335)
Tests
-----