From c00e498a4e5c0fcd71c2f20bcb420c80d696a0bf Mon Sep 17 00:00:00 2001
From: Konrad Baumgart <konrad.baumgart@erli.pl>
Date: Sun, 19 Jan 2025 22:07:11 +0100
Subject: [PATCH 1/2] docs about global dispatcher and errors (#3987)

Signed-off-by: Konrad Baumgart <zuo.zp8@gmail.com>
---
 README.md               | 3 ++-
 docs/docs/api/Errors.md | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index b47a5fe367c..8fa1c94d697 100644
--- a/README.md
+++ b/README.md
@@ -337,7 +337,8 @@ See [Dispatcher.upgrade](./docs/docs/api/Dispatcher.md#dispatcherupgradeoptions-
 
 * dispatcher `Dispatcher`
 
-Sets the global dispatcher used by Common API Methods.
+Sets the global dispatcher used by Common API Methods. Global dispatcher is shared among compatible undici modules,
+including undici that is bundled internally with node.js.
 
 ### `undici.getGlobalDispatcher()`
 
diff --git a/docs/docs/api/Errors.md b/docs/docs/api/Errors.md
index c32868912a6..771e716671a 100644
--- a/docs/docs/api/Errors.md
+++ b/docs/docs/api/Errors.md
@@ -28,6 +28,9 @@ import { errors } from 'undici'
 | `ResponseExceededMaxSizeError`       | `UND_ERR_RES_EXCEEDED_MAX_SIZE`       | response body exceed the max size allowed                                 |
 | `SecureProxyConnectionError`         | `UND_ERR_PRX_TLS`                     | tls connection to a proxy failed                                          |
 
+Be aware that some errors are created by dispatcher. If you plan to check `instanceof errors.UndiciError` then don't use the default global dispatcher,
+as it may come from another `undici` module and have its own errors classes.
+
 ### `SocketError`
 
 The `SocketError` has a `.socket` property which holds socket metadata:

From 5e387328e5d8f97468bfd493828a9324289ac95b Mon Sep 17 00:00:00 2001
From: Matteo Collina <matteo.collina@gmail.com>
Date: Thu, 23 Jan 2025 08:51:10 -0800
Subject: [PATCH 2/2] Update docs/docs/api/Errors.md

Co-authored-by: Carlos Fuentes <me@metcoder.dev>
---
 docs/docs/api/Errors.md | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/docs/docs/api/Errors.md b/docs/docs/api/Errors.md
index 771e716671a..dfba3b39ce0 100644
--- a/docs/docs/api/Errors.md
+++ b/docs/docs/api/Errors.md
@@ -28,9 +28,7 @@ import { errors } from 'undici'
 | `ResponseExceededMaxSizeError`       | `UND_ERR_RES_EXCEEDED_MAX_SIZE`       | response body exceed the max size allowed                                 |
 | `SecureProxyConnectionError`         | `UND_ERR_PRX_TLS`                     | tls connection to a proxy failed                                          |
 
-Be aware that some errors are created by dispatcher. If you plan to check `instanceof errors.UndiciError` then don't use the default global dispatcher,
-as it may come from another `undici` module and have its own errors classes.
-
+Be aware of the possible difference between the global dispatcher version and the actual undici version you might be using. We recommend to avoid the check `instanceof errors.UndiciError` and seek for the `error.code === '<error_code>'` instead to avoid inconsistencies.
 ### `SocketError`
 
 The `SocketError` has a `.socket` property which holds socket metadata: