2019 LTS

With the LTS and the TECH stream releases to choose from, you can pick the release that best fits your needs, depending on where you are in your development cycle. For creators who are about to embark on projects that are past the prototyping phase, Unity 2019.4 LTS provides stable, high-quality features that are supported for two years. You can confidently create your projects with that version during development and release.

Unity 2019 LTS stream has the same feature set as the 2019.3 TECH stream release.

If you need scalability for all supported platforms, high performance, and best-in-class visual quality, the Universal Render Pipeline is our recommended production-ready solution. To help you achieve stunning high-fidelity graphics on high-end hardware (PC, consoles, and future hardware), the High Definition Render Pipeline (HDRP) is now out of Preview, which means those of you already working with it will have a consistent upgrade path.

Our default code editor is now Visual Studio 2019, and IDE support has moved to packages. This LTS release also brings huge improvements to profiling, such as Player Deep Profiling and Call Stacks support. In Unity 2019 LTS, the Burst Compiler optimizes your output for the platform you’re compiling for, which can lead to huge performance improvements. Burst Compiler 1.3 offers native debugging and improved scalability and usability. .NET 4.x is now the default scripting runtime. Incremental Garbage Collection minimizes garbage collection spikes. Also, several quality-of-life improvements to scripting workflows reduce iteration times and make you more productive.

Shader Graph is now our production-ready solution for building shaders visually. Visual Effect Graph empowers you to create beautiful VFX in real-time, without coding, and is now compatible with Shader Graph. Unity 2019 also helps artists achieve more, directly within the Unity Editor, with new and improved terrain tools, as well as ProBuilder, our unique hybrid of 3D modeling and level design tools.

We’ve given the Editor UI a new look and feel by updating icons, fonts, and user feedback systems. Unity 2019 LTS increases clarity in the Editor, so creators can focus more on their content. Since Unity 2018 LTS, we’ve also added loads of workflow improvements to make you more productive in the Editor, such as Prefab Asset Editing in Inspector, Quick Search, Presets and Shortcut Manager. Unity 2019 LTS uses Asset Import Pipeline V2 to provide you with asset-dependency tracking and many other improvements, laying the foundation of a more reliable, performant and scalable pipeline and speeding up your import times significantly.

For mobile developers who aim to push mobile graphics and performance, Unity 2019 LTS brings improvements such as on-demand rendering, Adaptive Performance and improved OpenGL support.

Throughout 2019, we’ve also added and polished lots of tools for augmented reality (AR) and virtual reality (VR) developers. AR Foundation, our framework for multiplatform AR development, gives you the power to build your app once and deploy across ARKit, ARCore, Magic Leap and HoloLens platforms. With the High Definition Render Pipeline for VR, you can push your VR experiences to the next level of fidelity without sacrificing performance.

We now also offer support for approved developers to create and ship their games on Google’s Stadia cloud gaming platform.

Making the current LTS stream the most stable version of Unity is our top priority. Biweekly updates are intended to address crashes, regressions, issues that affect the wider community or console SDK/XDKs, and any major issues that would prevent a large number of developers from shipping their projects.

We’re committed to supporting 2019.4 LTS releases with biweekly fixes until mid-2021, and then monthly updates until mid-2022.

Unity 2018.4 is now the legacy LTS and will be updated once every month until it reaches the end of its support cycle in spring 2021.