update-packages

name	update-packages
description	Updates pinned package dependencies for Dart and Flutter project templates. Use when adding/removing packages from the allowlist or updating dependency versions across Flutter channels (main/beta/stable).

Update Packages

[!IMPORTANT] Sequential Execution Required: All steps must be executed strictly one after another in sequence in a single execution context. Do NOT use parallel subagents or run commands concurrently across channels, as switching Flutter SDK channels modifies shared local SDK state.

Step 1: Update allowlist (if needed)

If adding or removing packages, edit lib/src/project_templates.dart first. This file contains the allowlist of supported packages. Skip this step if only updating versions.

Step 2: Update dependencies for each channel

Run the following sequentially for each channel (stable, beta, main):

flutter channel <CHANNEL>
flutter upgrade
dart tool/grind.dart update-pub-dependencies

Step 3: Switch back to stable

flutter channel stable

Step 4: Verify changes

Check git status and git diff to confirm the expected changes to tool/dependencies/pub_dependencies_stable.json, pub_dependencies_beta.json, and pub_dependencies_main.json.