Logisim-evolution 5.0.0: What’s New

Version 5.0.0 was released on September 12, 2026. It is the current stable release and the version you should download. Below are the highlights that matter most to users; the full changelog is on the GitHub releases page.

New features

• Find Action search — press Ctrl+Shift+A (or tap Shift twice) and type part of any menu action’s name to find and run it. Fuzzy matching included.
• Image component — insert your own bitmap images into circuits and subcircuit appearances.
• Real-Time Clock component and Floating Point Constant component — new building blocks for the library.
• Signed/unsigned multiplier option and a “Show Bus Width” wire attribute that labels multi-bit buses.
• New TTL chips: 7476 (dual J-K flip-flop), 7493 (4-bit binary counter), 7438 (quad NAND, open collector), and 74173 (4-bit D-type registers).
• 12-bit color mode for the RGB Video component.
• Better file handling — drag project files straight into the window to open them; selectively merge individual circuits (with their dependencies) from another file; export single circuits as standalone files.
• Anti-aliasing preference for smoother UI rendering, and a much improved dark theme.
• Multiline text labels (Shift+Enter), paste-at-mouse-position, and a filterable component tree.

Improvements and fixes

• Timing diagram (chronogram) recording and exports corrected.
• HDL and FPGA generation fixes, including FPGA support for the Bit Finder component.
• Memory tools improved: go-to-address in the hex editor, clearer RAM reset behavior, opt-in RAM data-bus mode.
• The Linux .deb package now installs cleanly on Debian 12 and Ubuntu 22.04.
• Dozens of stability fixes across editing, simulation, and the VHDL tools — plus many smaller bug fixes.

Should you upgrade?

Yes. If you are on 4.1.0 or older, 5.0.0 is a straightforward upgrade with new components and a long list of fixes. One caution, as always: back up your .circ files first, and note that files saved in 5.0.0 cannot be reopened in much older versions.