From 63f4b40a9a97da4b47070467dae4550b73c0d431 Mon Sep 17 00:00:00 2001
From: Alan Agius <17563226+alan-agius4@users.noreply.github.com>
Date: Fri, 29 May 2026 06:16:18 +0000
Subject: [PATCH] fix(@angular/cli): expand package groups for newly added peer
 dependencies in update schematic

Previously, the package group stabilization loop ran completely before the peer dependencies resolution loop. If a peer dependency was newly added during the peer dependencies loop (e.g., @angular/core), its corresponding package group members (e.g., @angular/router) were never expanded, leaving them at outdated versions.

Now, wrap the package group and peer dependencies stabilization logic in a single outer loop so that newly added peer dependencies are also stabilized and their package groups are correctly expanded.
---
 .../cli/src/commands/update/schematic/index.ts   | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/packages/angular/cli/src/commands/update/schematic/index.ts b/packages/angular/cli/src/commands/update/schematic/index.ts
index e110480d09a5..0b2761313899 100644
--- a/packages/angular/cli/src/commands/update/schematic/index.ts
+++ b/packages/angular/cli/src/commands/update/schematic/index.ts
@@ -884,14 +884,16 @@ export default function (options: UpdateSchema): Rule {
     let lastPackagesSize;
     do {
       lastPackagesSize = packages.size;
-      npmPackageJsonMap.forEach((npmPackageJson) => {
-        _addPackageGroup(tree, packages, npmDeps, npmPackageJson, logger);
-      });
-    } while (packages.size > lastPackagesSize);
 
-    // This is done in seperate loop to ensure that package groups are added before peer dependencies.
-    do {
-      lastPackagesSize = packages.size;
+      let lastGroupSize;
+      do {
+        lastGroupSize = packages.size;
+        npmPackageJsonMap.forEach((npmPackageJson) => {
+          _addPackageGroup(tree, packages, npmDeps, npmPackageJson, logger);
+        });
+      } while (packages.size > lastGroupSize);
+
+      // This is done in seperate loop to ensure that package groups are added before peer dependencies.
       npmPackageJsonMap.forEach((npmPackageJson) => {
         _addPeerDependencies(tree, packages, npmDeps, npmPackageJson, npmPackageJsonMap, logger);
       });