From 1765668b7d495ef8a581f697bf9e4b7460455f13 Mon Sep 17 00:00:00 2001
From: Mike Molisani <37375674+mgmolisani@users.noreply.github.com>
Date: Mon, 11 Nov 2024 12:23:32 -0500
Subject: [PATCH] Nullish check devtools.enabled (#12093)

Co-authored-by: Jerel Miller <jerelmiller@gmail.com>
---
 .changeset/angry-sheep-smile.md | 5 +++++
 .size-limits.json               | 4 ++--
 src/core/ApolloClient.ts        | 2 +-
 3 files changed, 8 insertions(+), 3 deletions(-)
 create mode 100644 .changeset/angry-sheep-smile.md

diff --git a/.changeset/angry-sheep-smile.md b/.changeset/angry-sheep-smile.md
new file mode 100644
index 00000000000..d1db8592e77
--- /dev/null
+++ b/.changeset/angry-sheep-smile.md
@@ -0,0 +1,5 @@
+---
+"@apollo/client": patch
+---
+
+Fixed a bug when evaluating the devtools flag with the new syntax `devtools.enabled` that could result to `true` when explicitly set to `false`.
diff --git a/.size-limits.json b/.size-limits.json
index a87db882cdf..c3a79848a2b 100644
--- a/.size-limits.json
+++ b/.size-limits.json
@@ -1,4 +1,4 @@
 {
-  "dist/apollo-client.min.cjs": 40266,
-  "import { ApolloClient, InMemoryCache, HttpLink } from \"dist/index.js\" (production)": 33060
+  "dist/apollo-client.min.cjs": 40269,
+  "import { ApolloClient, InMemoryCache, HttpLink } from \"dist/index.js\" (production)": 33061
 }
diff --git a/src/core/ApolloClient.ts b/src/core/ApolloClient.ts
index 7dce981b88d..6ae37a8acd9 100644
--- a/src/core/ApolloClient.ts
+++ b/src/core/ApolloClient.ts
@@ -254,7 +254,7 @@ export class ApolloClient<TCacheShape> implements DataProxy {
     this.typeDefs = typeDefs;
     this.devtoolsConfig = {
       ...devtools,
-      enabled: devtools?.enabled || connectToDevTools,
+      enabled: devtools?.enabled ?? connectToDevTools,
     };
 
     if (this.devtoolsConfig.enabled === undefined) {