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Understand 8.0 release

Released May 13, 2026 · Build 1253

Rust Language Support

Analyze and navigate Rust code with the same deep insight and precision you expect across all supported languages. Checkout our Rust example project to see what's possible at Help > Open Example Project > datafrog - Rust

VHDL 2008 (feedback requested)

Understand 8.0 adds support for VHDL 2008. This implementation is actively evolving, and we are seeking feedback from users working with VHDL 2008 to help refine coverage, accuracy, and usability in future updates.

Expanded AI Capabilities

Understand’s AI functionality has been significantly enhanced. With support for multiple models, including local, offline, and third-party options, you can tailor AI to your environment and security needs.

Combined Bookmarks and Favorites

We’ve combined the Bookmarks and Favorites features into a single unified widget. This streamlined experience makes it easier to organize, access, and manage important code locations all in one place. Go to View > Favorites / Bookmarks to see the new widget.

Windows UI Update

Understand for Windows has been updated with a refreshed native Windows appearance and now follows your Windows theme settings, including light and dark mode preferences. With this change dark mode will no longer be supported in Windows 10.

Enhanced Python API

A more powerful and flexible Python API enables faster scripting, deeper integrations, and improved automation across your workflows. Stay up to date on the latest API syntax here.

Perl API Transition

Perl scripting remains fully supported, including running existing scripts and creating new ones. However, the Perl API will no longer receive updates, improvements, or ongoing maintenance, as future enhancements will be focused on the Python API.

More in the 8.0 release

AI & automation - Connect to a remote AI Server, select and switch between AI models, and use third-party AI services over HTTPS with an API key - Choose from more local LLM models, with automatic best-model detection in LM Studio and a configurable local context-window size - Expanded MCP server with new architecture-analysis tools and an alternate, LLM-optimized server layout - Configure External Generative AI from the und command line

Languages & compilers

  • Support for the IAR EWRX and SDCC compilers, plus an improved GHS V850 configuration

CodeCheck

  • Added many new MISRA C++ 2023 checks and a large set of MISRA C 2025 directive and rule checks
  • Added Ada 95 Style Guide and Python PEP 8 style checks
  • CodeCheck baselines and a CodeCheck violation Heatmap
  • mypy-based Python static checking (PYTH_02)

Analysis & navigation

  • New Global Search Bar in the main toolbar
  • New Data Sequence Diagram and Input Output Diagram graphs for function-level data flow
  • Metrics for object uses, sets, and modifications, plus new architecture dependency and structural metrics
  • Unused function/method/object entity filters for Ada, Fortran, Jovial, Pascal, Rust, Python, Basic, and JavaScript

Tooling & integrations

  • VS Code extension gains a Metrics view, graph-to-source navigation, beta Rust hover support, and richer syntax highlighting
  • Redesigned Tools > Options dialog and architecture plugins for namespace architectures

See also: all 8.0 build notes · Version releases · Migrating