diff --git a/README.md b/README.md
index 5ad20735..9bcc8e86 100644
--- a/README.md
+++ b/README.md
@@ -1034,7 +1034,7 @@ See the relevant API: [pgp.end], [Database.$pool]
 
 ### update
 
-Version 10.11.0 of the library started supporting new connection option `allowExitOnIdle`, to let process exit when pool is idle.
+Version 10.11.0 added support for connection option `allowExitOnIdle`, to let process exit when pool is idle.
 
 # History
 
diff --git a/lib/formatting.js b/lib/formatting.js
index 61f30cbd..7d93e424 100644
--- a/lib/formatting.js
+++ b/lib/formatting.js
@@ -718,7 +718,8 @@ const $as = {
     /**
      * @method formatting.json
      * @description
-     * Converts any value into JSON, and returns it as a valid string, with single-quote symbols fixed, unless flag `raw` is set.
+     * Converts any value into JSON (includes `BigInt` support), and returns it as a valid string,
+     * with single-quote symbols fixed, unless flag `raw` is set.
      *
      * When formatting a query, a variable makes use of this method via modifier `:json`. See method {@link formatting.format format}.
      *