From 677b1ed4935424e303b8369fdbdde79c20857c00 Mon Sep 17 00:00:00 2001
From: markdodgson <mdodgson@sonatype.com>
Date: Fri, 27 Jun 2025 17:58:29 +0100
Subject: [PATCH 1/2] Implementation of RFC9457

---
 packages/yarnpkg-core/sources/httpUtils.ts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/packages/yarnpkg-core/sources/httpUtils.ts b/packages/yarnpkg-core/sources/httpUtils.ts
index c83815ac3f2..452ce6d09fd 100644
--- a/packages/yarnpkg-core/sources/httpUtils.ts
+++ b/packages/yarnpkg-core/sources/httpUtils.ts
@@ -58,6 +58,13 @@ async function prettyNetworkError(response: Promise<Response>, {configuration, c
       message += `(can be increased via ${formatUtils.pretty(configuration, `httpTimeout`, formatUtils.Type.SETTING)})`;
 
     const networkError = new ReportError(MessageName.NETWORK_ERROR, message, report => {
+      if (err.response?.headers[`content-type`]?.includes(`application/problem+json`) && err.response?.body) {
+        report.reportError(MessageName.NETWORK_ERROR, `  ${formatUtils.prettyField(configuration, {
+          label: `RFC9457`,
+          value: formatUtils.tuple(formatUtils.Type.INSPECT, err.response.body.toString()),
+        })}`);
+      }
+
       if (err.response) {
         report.reportError(MessageName.NETWORK_ERROR, `  ${formatUtils.prettyField(configuration, {
           label: `Response Code`,

From e1d8d32b9caf3d3c9c4c2f2606e4b3800f664f23 Mon Sep 17 00:00:00 2001
From: markdodgson <mdodgson@sonatype.com>
Date: Sat, 28 Jun 2025 09:47:18 +0100
Subject: [PATCH 2/2] version check

---
 .yarn/versions/6ff06c58.yml | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 .yarn/versions/6ff06c58.yml

diff --git a/.yarn/versions/6ff06c58.yml b/.yarn/versions/6ff06c58.yml
new file mode 100644
index 00000000000..a84d0d30a4e
--- /dev/null
+++ b/.yarn/versions/6ff06c58.yml
@@ -0,0 +1,35 @@
+releases:
+  "@yarnpkg/core": patch
+
+declined:
+  - "@yarnpkg/plugin-compat"
+  - "@yarnpkg/plugin-constraints"
+  - "@yarnpkg/plugin-dlx"
+  - "@yarnpkg/plugin-essentials"
+  - "@yarnpkg/plugin-exec"
+  - "@yarnpkg/plugin-file"
+  - "@yarnpkg/plugin-git"
+  - "@yarnpkg/plugin-github"
+  - "@yarnpkg/plugin-http"
+  - "@yarnpkg/plugin-init"
+  - "@yarnpkg/plugin-interactive-tools"
+  - "@yarnpkg/plugin-jsr"
+  - "@yarnpkg/plugin-link"
+  - "@yarnpkg/plugin-nm"
+  - "@yarnpkg/plugin-npm"
+  - "@yarnpkg/plugin-npm-cli"
+  - "@yarnpkg/plugin-pack"
+  - "@yarnpkg/plugin-patch"
+  - "@yarnpkg/plugin-pnp"
+  - "@yarnpkg/plugin-pnpm"
+  - "@yarnpkg/plugin-stage"
+  - "@yarnpkg/plugin-typescript"
+  - "@yarnpkg/plugin-version"
+  - "@yarnpkg/plugin-workspace-tools"
+  - "@yarnpkg/builder"
+  - "@yarnpkg/cli"
+  - "@yarnpkg/doctor"
+  - "@yarnpkg/extensions"
+  - "@yarnpkg/nm"
+  - "@yarnpkg/pnpify"
+  - "@yarnpkg/sdks"