What Versions of Next.js, React, and TypeScript Are Used in DeskcommCRM

DeskcommCRM runs on Next.js 16.3.4, React 19.2.8, and TypeScript 6 with strict mode enabled according to the repository's package.json and AGENTS.md files.

DeskcommCRM is a modern customer relationship management application built on the latest major releases of the React ecosystem. The project explicitly declares these core dependencies in its root configuration files to ensure consistent development environments across all contributors.

Next.js Version Configuration

DeskcommCRM uses Next.js 16.3.4, declared with a caret (^) prefix to allow compatible minor and patch updates within the major 16 series.

Where the Next.js Version Is Defined

In the root package.json file at line 79, the dependency appears as:

{
  "dependencies": {
    "next": "^16.3.4"
  }
}

The caret range permits automatic updates to any 16.x.x release while preventing breaking changes from a potential Next.js 17 upgrade. This configuration is reinforced by the next.config.js file, which implements Next.js 16-specific optimizations such as swcMinify: true.

React Version Configuration

The project runs on React 19.2.8, including both the core React library and ReactDOM.

React Dependency Declaration

Lines 84-85 of package.json specify the React versions:

{
  "dependencies": {
    "react": "^19.2.8",
    "react-dom": "^19.2.8"
  }
}

The corresponding TypeScript type definitions are maintained as devDependencies:

• @types/react: ^19.2.18
• @types/react-dom: ^19.2.5

This alignment ensures type safety matches the runtime behavior of React 19 features.

TypeScript Version and Strict Mode

DeskcommCRM targets TypeScript 6 with strict mode enabled across the entire codebase.

Documentation in AGENTS.md

According to the architecture documentation in AGENTS.md, the project explicitly adopts "TypeScript 6 estrito" (strict), establishing a high bar for type safety and preventing implicit any types throughout the application.

tsconfig.json Compiler Settings

The tsconfig.json file enforces these strict requirements with the following configuration:

{
  "compilerOptions": {
    "target": "ES2022",
    "module": "ESNext",
    "strict": true,
    "noImplicitAny": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true
  },
  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx"],
  "exclude": ["node_modules"]
}

The strict: true flag activates all strict type-checking options, including noImplicitAny, strictNullChecks, and strictFunctionTypes, which is consistent with the TypeScript 6 strict mode mandate documented in the project's standards.

Verifying Versions Locally

To confirm these versions in your local development environment, run the following commands in the project root:

# Check Next.js version

npm list next

# Check React version  

npm list react react-dom

# Check TypeScript version

npx tsc --version

These commands will report the installed versions that match the caret ranges defined in package.json.

Summary

• Next.js 16.3.4: Declared at line 79 of package.json with ^16.3.4, allowing minor updates within version 16.
• React 19.2.8: Specified at lines 84-85 of package.json for both react and react-dom packages.
• TypeScript 6: Documented in AGENTS.md as the strict TypeScript target, enforced via tsconfig.json with strict: true and noImplicitAny: true.
• Configuration Files: Key files include package.json for dependency declarations, AGENTS.md for architectural standards, tsconfig.json for compiler rules, and next.config.js for Next.js-specific settings.

Frequently Asked Questions

How do I check which versions of Next.js, React, and TypeScript are installed in DeskcommCRM?

Run npm list next react react-dom to see the current installed versions, or check the dependencies section in package.json at lines 79 and 84-85. For TypeScript, run npx tsc --version or review the AGENTS.md file which documents the TypeScript 6 requirement.

Can I upgrade to a newer major version of Next.js or React?

The current package.json uses caret (^) prefixes that automatically accept minor and patch updates within the same major version. Upgrading to Next.js 17 or React 20 would require manually editing the version constraints in package.json and verifying compatibility with the TypeScript 6 strict configuration.

Where is the TypeScript strict mode configured?

The strict mode is enabled in tsconfig.json via the "strict": true compiler option. This setting is documented in AGENTS.md as part of the project's commitment to TypeScript 6 strict standards, ensuring consistent type safety across all contributions.

What does the caret (^) symbol mean in the version numbers?

The caret allows updates that do not modify the left-most non-zero digit. For ^16.3.4, this permits updates to any 16.x.x version but not 17.0.0. This ensures DeskcommCRM receives security patches and features within Next.js 16 and React 19 while preventing automatic major version migrations that could introduce breaking changes.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}