API-README update
diff --git a/API-README b/API-README
index 407321f..b5ec453 100644
--- a/API-README
+++ b/API-README
@@ -386,7 +386,17 @@ miner.php - an example web page to access the API
Feature Changelog for external applications using the API:
-API V1.21
+API V1.22
+
+Enforced output limitation:
+ all extra records beyond the output limit of the API (~64k) are ignored
+ and chopped off at the record boundary before the limit is reached
+ however, JSON brackets will be correctly closed and the JSON id will be
+ set to 0 (instead of 1) if any data was truncated
+
+----------
+
+API V1.21 (cgminer v2.10.0)
Added API commands:
'usbstats'