.NET 10 and the State of .NET Development in 2026

.NET 10 is the Long Term Support (LTS) release in November 2025.

Benefits of Microsoft .NET 10

Easy Migration to .NET 10

Every .NET upgrade since .NET 5 went surprisingly smoothly. .NET's performance work is genuine engineering, not just marketing. Developers praise .NET's consistent year-on-year performance improvements in GC, JIT, and libraries. Upgrading between .NET versions is typically smooth with few breaking changes.

Upgrading reduces CPU and RAM usage by 10-15%, and after upgrades many are able to downsize cloud servers to smaller instances.

• One company with approximately 20,000 .NET servers sees consistent CPU savings on each upgrade.
• Another company reports 4x speed-up for an audio/text analysis app going from .NET 8 to .NET 10 due to GC and runtime improvements.
• One more company reports upgrading from .NET 7 and switching to cheaper, smaller VM instances due to less memory usage or reducing their cloud node count, saving on infrastructure costs.

.NET 10 High-Performance Capabilities

Modern C# (.NET) runs on a managed runtime (the CLR). It carries runtime safety features (garbage collection, runtime type safety checks) that C++ does not have. It may be slightly heavier, but your insurance premiums (risk of bugs and security exploits) are much lower.

C# performance relative to C++ sometimes nearly matches it, and for typical business applications (web APIs and enterprise software), C# is fast enough that the performance difference rarely matters compared to its productivity benefits.

C# gives us a unique advantage: it behaves like a standard language such as Java by default, with memory safety, garbage collection, and type safety, but allows senior engineers to tune it to run with the speed of C++.

Out of the box, it is efficient, but it requires skilled architects to avoid memory pitfalls (boxing). You have the option to optimize some aspects (using tools like Span and SIMD) to reduce cloud costs and latency. This is manual work, not automatic, but it can save you from rewriting parts of the system in C++ or Rust.

Native AOT vs JIT

In modern .NET, Native AOT is a huge plus for cost (cloud bills). However, JIT (standard .NET) is still about 10 to 15% faster than Native AOT for long-running, high-load applications. 

For AWS Lambda or Azure Functions, AOT is often the clear winner. In serverless, if your app takes 500 milliseconds to start (JIT) versus 30 milliseconds (AOT), AOT is 15 times faster where it counts. The fact that JIT would be 10% faster after running for an hour is irrelevant because the serverless function dies after a few seconds. Many .NET libraries rely on reflection (inspecting code at runtime). AOT strips out the metadata needed for this to save space.

If your team relies on old internal libraries or specific third-party tools (like older versions of Entity Framework or Newtonsoft.Json), they likely will not work with AOT without significant code changes.

.NET for Enterprise Applications

.NET is very popular in Europe, especially in Sweden, Denmark, and Germany, where it plays the same role as Java in the United States. It is used in London by banks and large enterprise technology divisions.

Despite US startups tend more toward JavaScript, Go, and Python, some major tech hubs in non-coastal US regions such as Dallas (home to Texas Instruments, AT&T, and id Software, plus major hubs for Bank of America and defense contractors like Lockheed Martin) have many enterprise .NET/C# jobs.   

However, .NET Framework is still prevalent in some conservative companies. Many of them continue to use outdated .NET stacks such as .NET Framework 2.0 through 4.8. This creates a perception that .NET equals stagnation even though the modern cross-platform .NET is completely different.

.NET Development Team for Startups

.NET can deliver strong productivity (the tools are already there and they work) and fast release cycles for startups. Some of them run entirely on C# and .NET on Azure and AWS, using a mix of PaaS services and virtual machines running Windows and Linux.

However, most startups avoid .NET due to outdated associations with Microsoft licensing and enterprise heaviness.

Startups avoid C# because they fear hidden costs. Many developers believe that writing C# requires purchasing Visual Studio Professional/Enterprise (which costs thousands of dollars per year) and SQL Server (which can cost thousands per core). 

Any perception that .NET is tied to paid Microsoft tools is outdated. 

The modern .NET stack is largely free. Most modern C# developers on Mac/Linux use VS Code with C# Dev Kit (free) or JetBrains Rider (a complete cross-platform IDE, affordable and popular). Editors like Cursor also support .NET development. The expensive Visual Studio IDE is no longer a requirement. .NET works perfectly with free, open-source databases like PostgreSQL or MySQL. It has not been tied to SQL Server for many years.

Startups prefer Linux because it is cheaper, lighter, and the standard for cloud hosting (AWS/Azure/Google Cloud). They assume choosing .NET forces them into managing expensive Windows Servers. 

For decades, Microsoft was famously hostile toward open source (former CEO Steve Ballmer once called Linux “a cancer”). The original .NET Framework (versions 1.0 through 4.8) was proprietary and Windows-only. To run a .NET website, you had to buy a Windows Server license and use IIS (Internet Information Services). Many developers who haven't used .NET since 2015 still assume this is the case. They believe choosing .NET locks them into the expensive Microsoft commercial stack. 

C#/.NET has no required Microsoft licensing cost for development or deployment. 

Modern .NET is cloud-native. It runs natively on Linux. Microsoft's documentation often prioritizes Linux instructions for containerization (Docker/Kubernetes). Many performance benchmarks show .NET running faster on Linux than on Windows.  Developers can build .NET apps natively on MacBooks. Razor Pages, ASP.NET Core, and .NET SDK tools are fully cross-platform.

Many developers run .NET code on Linux using WSL2 or Docker containers, and deploy .NET applications exclusively on Linux with no issues. .NET apps can be containerized using Linux images easily, and native AOT apps can run on machines without the .NET runtime installed.

Some .NET teams operate with zero Windows machines, even in enterprise settings.

Under CEO Satya Nadella they created .NET Core (now simply called .NET), which was a complete rewrite of the platform. Modern .NET is open-source. The source code for the compiler (Roslyn), the runtime, and the base libraries is available on GitHub. It uses the MIT License, which is one of the most permissive licenses in existence. It is not "pseudo-open" or “shared source”. It is a genuine FOSS, overseen by the independent .NET Foundation.

Startups choose Go or Python because they perceive them as "grab and go" languages - you install them and start typing. Startups fear that if they pick C#, they will accidentally inherit the bureaucratic, over-engineered culture of a bank, rather than the agility of a tech startup.  Lack of a “cool factor” also affects .NET popularity among developers who want startup-style work.

.NET opinions are often outdated by a decade or more. Stigma associated with Microsoft's past blinds many cloud-native, performance-focused developers to the modern state of the technology.

Is .NET Outdated Technology?

No. Negative traits attributed to enterprise culture are sometimes connected to .NET itself. However, they are unrelated to .NET.

.NET is chosen by enterprises because it fits IT teams that use Windows, Office, and Active Directory. Enterprises selecting Microsoft stacks often prioritize stability, vendor support, certifications, and predictability. Enterprise .NET culture generally values consistency, compliance, and predictability over innovation.

Many Microsoft shops have heavy bureaucracy, slow processes, excessive management layers, and rigid rules. Enterprise dev environments often include locked down machines, Visual Studio only, strict patterns and architectures, pre-approved libraries only, and multi level approval processes. 

Developers in these environments have little power and must stay in their lane. Broken parts often remain unfixed. Optimization initiatives are discouraged and inefficiencies persist. Tasks in such companies may require extensive efforts to be approved. Even trivial changes can take months or even years.

Enterprise .NET roles rarely focus on building novel technology. They maintain critical internal systems and treat development as a cost center rather than an innovation center.

Enterprise roles often offer better work life balance, stability, and predictable processes. Some devs prefer slower paced .NET shops for lifestyle reasons. 

Challenge of Hiring Best .NET Developers

Hiring for .NET is harder than for other stacks. Applicants often do not meet standards of companies. They understand little beyond the syntax and do not know why StringBuilder is needed or what a database index is. Additionally, many roles need specialists in cloud, databases, and event systems, where experience matters. However, experienced .NET developers seeking for jobs are rare.

While .NET roles attract a large volume of candidates, there are many average developers with mediocre skill levels. In contrast, Python vacancies receive fewer total applicants, but those who apply have higher technical competence and better average skill sets. It is easier to find a .NET developer, but faster to hire a good Python developer.

Some enterprise .NET devs produce over-abstracted, verbose, or copy-pasted enterprise-style code. Code quality in many .NET shops is  poor, over-engineered, or bureaucratically constrained. Experienced engineers need to delete large amounts of poorly written .NET code written by prior teams.

Instead of writing code that directly solves a problem (like "save user to database"), the developer creates a complex web of interfaces, abstract classes, factories, and services. To understand how one feature works, a developer must jump through ten different files, none of which seem to contain the actual logic.

"Enterprise-style" implies that the code was written to look "professional" and "scalable" (like a massive banking system), even if the application is small and simple.

When a development team is forced to follow a checklist regardless of context ("Every class must have an interface," "Every function must have a standard comment header," "We must use this specific design pattern everywhere"), developers stop thinking in terms of the best solution and simply fill in the blanks to satisfy the bureaucracy of the code review process.

Instead of creating a shared function for a common task, developers copy the code block from an old feature and paste it into a new one. If a bug is found in that logic, it must be fixed in twenty different places.

When code is over-engineered (too complex), it becomes a liability. It is hard to read, hard to test, and hard to change. Experienced engineers realize that the complex architecture is actually doing nothing useful. By deleting the extra layers, interfaces, and wrappers, they replace 1000 lines of confusing code with 100 lines of code that does the exact same thing.

Many .NET shops  use "heavyweight" architectures (DDD, Clean Architecture, CQRS)  for "lightweight" problems. These patterns are good for modeling complex business rules (like for a stock trading engine) and require writing huge amounts of scaffolding code. When applied to simple applications, they increase development time and complexity by 10x without adding any value. Inexperienced enterprise developers use them because they are "trendy" or "enterprise-standard", not because the specific project actually needs them.

Microsoft completely reinvented .NET recently (moving from .NET Framework to .NET). The new version is modern and fast. Many companies refuse to upgrade and adopt new .NET features. They are stuck on technology from 2010 (like WebForms or WCF). New developers joining these teams in large enterprise .NET shops are forced to learn obsolete technologies using tutorials that are 10-15 years old. They are learning how Microsoft used to do things, not how things are done today.

If a developer spends years maintaining a legacy "Enterprise" application, they only use C# features from a decade ago. They never learn modern C# features. These developers may have 10 years of experience, but in reality, they have "1 year of experience repeated 10 times". They fall behind the rest of the industry, making it difficult for them to get hired at modern technology companies later.