📊 TIOBE Index: Python Dominates 23.37%, Rust Gains Security Focus

Dillip Chowdary

Tech Entrepreneur & Innovator

November 14, 2025 | 8 min read

                    
                        Today's Top Highlights
                    
                    Python leads TIOBE Programming Community Index with 23.37% rating, up 7 percentage points year-over-year
Rust becomes top secure programming language, adopted by Microsoft, Google, AWS for memory safety
TypeScript remains #1 on GitHub with 2.6 million contributors, surpassing JavaScript
NSA and CISA push memory-safe languages (Rust, Go, Swift) for critical infrastructure cybersecurity
DevSecOps integrates security tools (SonarQube, Snyk, Checkmarx) into CI/CD pipelines
JavaScript frameworks: Next.js 15 and SvelteKit dominate server-side rendering trends

                

TIOBE Index November 2025: Python Achieves 23.37% Market Dominance

The TIOBE Programming Community Index for November 2025 shows Python maintaining its dominant position with an unprecedented 23.37% rating, representing a massive 7 percentage point gain compared to November 2024 (16.12%). This marks Python's highest market share since TIOBE began tracking programming language popularity in 2001, consolidating its status as the world's most popular programming language.

23.37%

Python Market Share

+7pp

Year-over-Year Growth

TIOBE Ranking

Top 10 TIOBE Languages (November 2025): The ranking shows Python (#1, 23.37%), C++ (#2, 10.03%), Java (#3, 9.45%), C (#4, 8.89%), C# (#5, 6.73%), JavaScript (#6, 3.79%), Go (#7, 2.27%), Rust (#8, 1.98%), Swift (#9, 1.54%), and TypeScript (#10, 1.42%). Notable trends include Rust climbing to #8 (up from #17 in 2024) driven by security-focused adoption, and TypeScript entering the top 10 for the first time.

Python's Dominance Drivers: Python's explosive growth is fueled by AI/ML workloads (TensorFlow, PyTorch, scikit-learn), data science and analytics (pandas, NumPy), web development frameworks (Django, FastAPI), and automation/scripting use cases. The language benefits from an unmatched ecosystem of 400,000+ packages on PyPI, extensive corporate backing (Google, Meta, Microsoft), and universal adoption in education from K-12 to university computer science programs.

Rust Becomes Top Secure Programming Language: Microsoft, Google, AWS Adoption

Rust has emerged as the industry-leading secure programming language, with major technology companies including Microsoft, Google, Amazon Web Services, Meta, and Mozilla adopting it for memory-safe systems programming. Rust's ownership model and borrow checker eliminate entire classes of vulnerabilities including buffer overflows, use-after-free bugs, and data races - security flaws responsible for 70% of critical vulnerabilities in C/C++ codebases.

Enterprise Rust Adoption Examples: Microsoft is rewriting core Windows components in Rust, with portions of the Windows kernel, DirectX runtime, and Azure cloud services transitioning from C/C++. Google mandated Rust for new Android system components in 2024, reporting a 65% reduction in memory safety vulnerabilities in Rust code versus C++ equivalents. AWS uses Rust extensively in Firecracker (serverless compute), Bottlerocket (container OS), and S3 storage infrastructure, achieving 40% better performance than equivalent C++ implementations.

Why Rust for Security-Critical Code: Rust's compile-time guarantees prevent memory safety bugs without requiring garbage collection, making it ideal for operating systems, embedded systems, browsers, and cryptographic libraries. The Rust compiler's strict ownership rules enforce memory safety at compile time, eliminating runtime overhead while preventing vulnerabilities. Major projects using Rust include Firefox components (Mozilla), parts of the Linux kernel (since Linux 6.1), Cloudflare's network services, and Discord's messaging infrastructure.

🦀 Getting Started with Rust:

Official Rust Book - Comprehensive learning resource
Cargo Documentation - Rust package manager and build tool
Crates.io - 150,000+ community packages
Rustlings - Small exercises for learning Rust

NSA and CISA Push Memory-Safe Languages for Cybersecurity Infrastructure

The National Security Agency (NSA) and Cybersecurity and Infrastructure Security Agency (CISA) have jointly published updated guidance urging software developers and critical infrastructure operators to adopt memory-safe programming languages including Rust, Go, Swift, and Java for new projects and security-critical components. The November 2025 guidance replaces previous recommendations from 2022, reflecting the agencies' increased emphasis on proactive cybersecurity measures.

Memory Safety Statistics: According to the NSA/CISA joint report, memory safety vulnerabilities account for approximately 70% of all critical security flaws in widely-used software written in C and C++. These include buffer overflows, use-after-free bugs, double-free errors, and null pointer dereferences. High-profile incidents like the Heartbleed OpenSSL bug (2014), Windows Print Spooler vulnerabilities (2021), and recent Linux kernel exploits all stem from memory unsafety in C/C++ code.

Recommended Memory-Safe Languages: The guidance identifies Rust, Go, Swift, Java, C#, and modern managed languages as preferred alternatives for new development. Each language offers different trade-offs: Rust provides C/C++ level performance without garbage collection, Go offers simplicity and fast compilation for networked services, Swift excels in Apple ecosystem development, and Java/C# provide mature enterprise ecosystems with automatic memory management.

⚠️ Migration Strategy for Legacy C/C++ Code:

Prioritize rewriting security-critical modules first (auth, crypto, parsing)
Use Rust/C++ interop for incremental migration strategies
Employ automated tools: C2Rust transpiler, static analyzers
Maintain comprehensive test suites during language transitions
Budget 2-3x development time for initial Rust rewrites vs C++ maintenance

TypeScript Remains #1 on GitHub with 2.6 Million Contributors

TypeScript continues to dominate GitHub as the most actively contributed programming language with 2.6 million contributors in 2025, surpassing JavaScript (2.3M), Python (2.1M), Java (1.8M), and Go (1.2M). This metric from GitHub's Octoverse report measures unique developers making commits to public repositories, reflecting real-world development activity rather than theoretical popularity.

TypeScript vs Python Ecosystem Comparison: While Python leads in total market share (23.37% TIOBE), TypeScript dominates web development with 87% of new JavaScript projects adopting TypeScript in 2025 (up from 78% in 2024). TypeScript's static typing prevents runtime errors caught by the compiler, improving code quality in large-scale applications. The language powers frameworks including Angular, Next.js, NestJS, Remix, and is the default for new React projects via Create React App.

GitHub Language Statistics (2025): TypeScript repositories grew 43% year-over-year, with 12.5 million public repositories using TypeScript as the primary language. Python has 18.2 million repositories (growth: 31%), JavaScript 22.1 million (growth: 12%), and Rust 1.8 million (growth: 89% - fastest growing). The data indicates TypeScript's strength in collaborative open-source development, while Python excels in education, data science, and scripting use cases.

DevSecOps Integration: Automated Security Tools in CI/CD Pipelines

DevSecOps adoption accelerated in 2025 with 73% of enterprises integrating automated security scanning directly into CI/CD pipelines, up from 54% in 2024 according to GitLab's DevSecOps survey. Leading tools include SonarQube for code quality and security analysis, Snyk for dependency vulnerability scanning, and Checkmarx for static application security testing (SAST).

Popular DevSecOps Tools by Category:
SAST (Static Analysis): SonarQube (3M+ deployments), Checkmarx, Veracode, Semgrep
DAST (Dynamic Analysis): OWASP ZAP, Burp Suite, Acunetix
SCA (Dependency Scanning): Snyk (5M+ developers), Dependabot, WhiteSource
Container Security: Aqua Security, Sysdig, Trivy
Secrets Detection: GitGuardian, TruffleHog, GitHub Secret Scanning

Implementation Best Practices: Effective DevSecOps pipelines run security scans on every pull request, block merges for critical/high severity vulnerabilities, and generate automated remediation guidance. Organizations report 60% faster security issue resolution when scanning occurs during development versus production. GitHub Advanced Security, GitLab Ultimate, and Azure DevOps include integrated security scanning capabilities as part of their enterprise offerings.

JavaScript Framework Wars: Next.js 15 and SvelteKit Dominate SSR Trends

Next.js 15, released in October 2025, continues to dominate the React server-side rendering (SSR) ecosystem with 1.2 million weekly npm downloads and adoption by Vercel, Netflix, Twitch, and GitHub for production applications. The framework's App Router architecture with React Server Components provides zero-bundle-size server logic, streaming SSR, and automatic code splitting.

Next.js 15 Key Features: The release introduces Turbopack as the default bundler (replacing Webpack), providing 5x faster local development startup and 700% faster code updates with Hot Module Replacement. Partial Prerendering (PPR) allows mixing static and dynamic content in the same page, reducing time-to-first-byte (TTFB) by 40%. Server Actions enable type-safe form mutations without API routes, simplifying full-stack React development.

Alternative Framework Landscape: SvelteKit (Svelte's SSR framework) reached 1.0 stability in 2024 and now powers 180,000+ applications with its compiler-based approach eliminating virtual DOM overhead. Remix, acquired by Shopify, focuses on web standards and progressive enhancement with 85,000+ weekly downloads. Astro leads the content-focused SSR space with partial hydration and multi-framework support (React, Vue, Svelte in one project).

📊 Framework Selection Guide 2025:

Next.js 15: Best for React apps needing SSR, edge runtime, Vercel deployment
SvelteKit: Smaller bundle sizes, compiler-based, ideal for performance-critical apps
Remix: Progressive enhancement, Shopify integrations, standards-based routing
Astro: Content sites (blogs, docs), multi-framework support, partial hydration
Nuxt.js: Vue.js ecosystem, full-stack TypeScript, auto-imports

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