diff --git a/content/nginx/admin-guide/load-balancer/dynamic-configuration-api.md b/content/nginx/admin-guide/load-balancer/dynamic-configuration-api.md
index e14033e59..869d21caa 100644
--- a/content/nginx/admin-guide/load-balancer/dynamic-configuration-api.md
+++ b/content/nginx/admin-guide/load-balancer/dynamic-configuration-api.md
@@ -65,7 +65,7 @@ Prior to using the dynamic configuration feature, make sure that you have the fo
     http {
         # ...
         upstream appservers {
-            zone appservers 64k;
+            zone appservers 2048k;
 
             server appserv1.example.com      weight=5;
             server appserv2.example.com:8080 fail_timeout=5s;
@@ -100,7 +100,7 @@ http {
     # ...
     # Configuration of the server group
     upstream appservers {
-        zone appservers 64k;
+        zone appservers 2048k;
 
         server appserv1.example.com      weight=5;
         server appserv2.example.com:8080 fail_timeout=5s;
@@ -195,7 +195,7 @@ To make the changes persist across configuration reloads, move the list of upstr
 http {
     # ...
     upstream appservers {
-        zone appservers 64k;
+        zone appservers 2048k;
         state /var/lib/nginx/state/appservers.conf;
 
         # All servers are defined in the state file
diff --git a/content/nginx/admin-guide/load-balancer/http-health-check.md b/content/nginx/admin-guide/load-balancer/http-health-check.md
index ac5bea3d3..4caf41142 100644
--- a/content/nginx/admin-guide/load-balancer/http-health-check.md
+++ b/content/nginx/admin-guide/load-balancer/http-health-check.md
@@ -97,7 +97,7 @@ To enable active health checks:
    ```nginx
    http {
        upstream backend {
-           zone backend 64k;
+           zone backend 2048k;
            server backend1.example.com;
            server backend2.example.com;
            server backend3.example.com;
@@ -216,7 +216,7 @@ Mandatory health checks can be marked as persistent, so that the previous state
 
 ```nginx
 upstream my_upstream {
-    zone   my_upstream 64k;
+    zone   my_upstream 2048k;
     server backend1.example.com slow_start=30s;
 }
 
diff --git a/content/nginx/releases.md b/content/nginx/releases.md
index f63e2a909..8f60f04a6 100644
--- a/content/nginx/releases.md
+++ b/content/nginx/releases.md
@@ -58,7 +58,7 @@ NGINX Plus PLS.37.0.0.1 LTS is the first LTS release.
 - [NGINX control REST API]({{< ref "/nginx/admin-guide/basic-functionality/runtime-control.md#control-api" >}}) that provides an HTTP interface for controlling an NGINX Plus instance in addition to signal-based control.
 - JSON-formatted error logs: the [`json`](https://nginx.org/en/docs/ngx_core_module.html#error_log_json) parameter of the [`error_log`](https://nginx.org/en/docs/ngx_core_module.html#error_log) directive.
 - Customer error log variables: the [`error_log_tag`](https://nginx.org/en/docs/http/ngx_http_core_module.html#error_log_tag) directive.
-- Enhanced upstream latency metrics with latency histograms: the `response_time_hist` data for each [HTTP upstream](https://nginx.org/en/docs/http/ngx_http_api_module.html#def_nginx_http_upstream).
+- Enhanced upstream latency metrics with latency histograms: the `response_time_hist` data for each [HTTP upstream](https://nginx.org/en/docs/http/ngx_http_api_module.html#def_nginx_http_upstream). As these metrics require additional memory, ensure that [upstream shared memory zones](https://nginx.org/en/docs/http/ngx_http_upstream_module.html#zone) are at least `2048k`.
 - Basic authentication for [HTTP CONNECT forward proxy](https://nginx.org/en/docs/http/ngx_http_tunnel_module.html).
 - Encrypted Client Hello (ECH) support: the [`ssl_ech_file`](https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_ech_file) directive.
 - Multipath TCP support: the [`multipath`](https://nginx.org/en/docs/http/ngx_http_core_module.html#multipath) parameter of the [`listen`](https://nginx.org/en/docs/http/ngx_http_core_module.html#listen) directive.