Warn when using Next 16 (#998)

vicb · web-flow · commit f69787ce4c5a · 2025-11-20T08:01:54.000+01:00
diff --git a/.changeset/nine-rice-return.md b/.changeset/nine-rice-return.md
@@ -0,0 +1,5 @@
+---
+"@opennextjs/cloudflare": patch
+---
+
+Warn when using Next 16
diff --git a/packages/cloudflare/src/cli/build/build.ts b/packages/cloudflare/src/cli/build/build.ts
@@ -101,4 +101,7 @@ function ensureNextjsVersionSupported(options: buildHelper.BuildOptions) {
 		logger.error("Next.js version unsupported, please upgrade to version 14.2 or greater.");
 		process.exit(1);
 	}
+	if (buildHelper.compareSemver(options.nextVersion, ">=", "16")) {
+		logger.warn("Next.js 16 is not fully supported yet! Some features may not work as expected.");
+	}
 }

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +"@opennextjs/cloudflare": patch
 +---
++
 +Warn when using Next 16
Original file line number	Diff line number	Diff line change
`@@ -101,4 +101,7 @@ function ensureNextjsVersionSupported(options: buildHelper.BuildOptions) {`
`101`	`101`	`logger.error("Next.js version unsupported, please upgrade to version 14.2 or greater.");`
`102`	`102`	`process.exit(1);`
`103`	`103`	`}`
	`104`	`+ if (buildHelper.compareSemver(options.nextVersion, ">=", "16")) {`
	`105`	`+ logger.warn("Next.js 16 is not fully supported yet! Some features may not work as expected.");`
	`106`	`+ }`
`104`	`107`	`}`