Releases
Release notes
Every Chip Hippo release since 1.0.0, newest first, with one line for each change that went into it. Each change links to its commit, and each release to its page on GitHub Releases, where its installers are. The latest version is always on the download page.
v1.4.4 2026-10-19Release on GitHub →
v1.4.3 2026-10-14Release on GitHub →
- 995000eSmoother editing on busy desks: much faster drags, repeated notifications merged, and Space runs the circuit with a wire tool armed.
- 27aa26eAdded the 74LS92, custom clock rates, and a Timing or Transitions axis for the logic analyzer.
- 256bf93A new selection and drag model, the real 10-pin 7-segment display, bendable TO-92 legs, and rotation for every component.
- 29cd612Fixes from a whole-codebase bug review, and a what's-new banner for people upgrading.
v1.4.2 2026-10-13Release on GitHub →
- e8f6610Fixed LEDs on a PWM clock lagging behind a thrown switch (reported by minecon1776).
v1.4.1 2026-10-13Release on GitHub →
- bec03e9Spice Lite: amplitude and offset for clock waves, truer 74LS inputs and outputs, and more areas graded against ngspice.
- bb70d4cSpice Lite: switch contact bounce, and LEDs that show a PWM signal's average brightness.
- 9b047a8Added a speaker that plays the tone across it under Spice Lite, with a 555 example.
v1.4.0 2026-10-12Release on GitHub →
- 4023ddaAdded Spice Lite, a second simulation engine that works in voltages and currents: real LEDs, chip limits and brown smoke.
- fb39908Spice Lite graded against ngspice: exact RC and inductor networks, datasheet diode and LED curves, and transistor grades.
- e82e26cTransistor part numbers with preset figures, the split power-rail strip, and better value fields.
- e32c330Updated the user guide and its PDF.
- 0b84c7aSpice Lite: CMOS outputs follow their datasheet's current curve.
- fa92175Spice Lite fixes for inductors, RC timing and the CD4000 timers.
- 36689c0Updated the user guide and its PDF.
- d64a3e6Added the bench parts (LM358, ULN2003A, optocouplers, voltage regulators, relay, electronic load) and triangle, sawtooth and sine clock waves.
- 2fa30c7Spice Lite runs several times faster.
- b520596Clocks can be a PWM signal with a set pulse width, or a trapezoid wave under Spice Lite.
- 858177f500 Hz and 1 kHz clocks are back, with fixes to the memory inspector, the updater, paste and the schematic.
- 240fcb7Added the CPU monitor for the W65C02 and Z80A, and "Hello World" example computers for both.
- e723115CPU monitor: breakpoints saved with the project, and CPU core fixes.
- 4046e30CPU monitor: Pause, Step Over, Go to, the stack, a breakpoint list and editable registers.
- d252d18Release checks: RC and LC example circuits, and fixes to the updater, project tabs and CPU monitor.
- 0e10dc9Release checks: updater and simulation fixes.
- a5aa9e7Release checks: fixes to chip seating, ROM loading, the 3D view and opening projects.
- 0542ad6Website: new hero shots for the latest features.
- 62dc4c5Updated the user guide, including auto-routing every wire.
v1.3.0 2026-10-06Release on GitHub →
- 7da260cWebsite: names the CD4000 CMOS family beside 74xx.
- 1b8ea39Added the 3D view of the desk.
- 0b5bc2aWide (600-mil) chips seat at their real width.
- 47ff1e9Added the custom chip designer: describe a chip in Verilog, place it, and debug it while the circuit runs.
- 604dfe6Website: three new hero shots and feature cards.
- 6fe874fMore Verilog for custom chips: inout ports, memories, loops and signed arithmetic.
- 74a76e1Pre-release fixes to the chip designer, its debugger and project tabs.
- df46d2cUpdated the user guide PDF.
v1.2.0 2026-10-04Release on GitHub →
- 5f3127dAdded the CD4000 CMOS family, the 555 timer and a potentiometer.
- 0f5dd55Added capacitors, diodes, inductors and transistors.
- ef242b0Typed component values with pick lists, three more CD4000 parts, and a datasheet review of the whole family.
- 206c157Renamed the CD4511B's pin 5 to LE/STROBE, as its datasheet does.
v1.1.2 2026-09-30Release on GitHub →
- 6d28a65Relicensed from Apache-2.0 to GPL-3.0-or-later, with an exception that keeps generated board code free to use.
- 29f9065Updated the App Store listing for Serial I/O, auto-routing and the GPL.
- 2d465afWebsite: linked the new supported-chips page.
- d0708deWebsite: added the supported-chips page, generated from the parts catalog.
- a4f4abaDocumented the serial-port entitlement for App Store review.
- 783bab3Added export to a KiCad schematic and to Digital (.dig).
- bfc532dFixes from a whole-project review: the 74LS181's functions, closing the window, corrupt projects, Z80 interrupts and undo during drags.
- 870ca52Moved the CI actions to Node 24.
v1.1.1 2026-09-28Release on GitHub →
v1.1.0 2026-09-28Release on GitHub →
- aeb8c47A better schematic view layout, with zoom.
- 1962e46Added auto-routing: redraw every wire as a board-aligned run around the parts.
- 72a2a66Added external signals: on-screen inputs you plant on the board with a flag.
- 0d8c949Build fixes.
- 45968d8Fixed a dragged wire end landing on a hole out of reach.
- de950b2Several external signals, each with its own id.
- 7fe1084The desk's scroll lock is saved in the project file.
- 74860c2Added icons to the component tray.
- 89b78e4Tray icons match the app icon's colour.
- 8df0863Added a setting to auto-close component tray folders.
- 0355e0dAuto-routing asks before it starts.
- 5573cdaEach clock can be paused and resumed on its own.
- db581a1Added Serial I/O: a running circuit talks to a real Arduino-class board over USB. The AI builder was hardened too.
- 84a0e30Serial I/O: reworked viewing and saving the generated board code.
- f018741Serial I/O: the wire protocol documented in the user guide, with conformance tests.
- ea94519Updated the example serial sketch.
- c7c539fSerial I/O review fixes; each platform's build ships only its own serial-port binaries.
- 8d189ccWebsite: updated the feature list.
v1.0.2 2026-08-21Release on GitHub →
- dd95f93Release builds upload to the Mac App Store automatically.
- 92b3a0fWebsite: added the Mac App Store link.
- 14c4253LED bulbs are drawn centred on their legs.
- 42cba9cR turns a breadboard strip while you place it.
- 08ec9dcResistor arrays can be turned end for end.
- 916d877DIP switches show their ON label.
- 956441cCode quality: the desk controller split into smaller pieces.
- 87f2752Wire waypoints are hidden while the circuit runs.
v1.0.1 2026-08-12Release on GitHub →
- 18c0d12Submitted to the Mac App Store.
- 9f01a4dWebsite: "Other Hippos" became "Visit the hippo herd".
- 69d73fdFixed a website test that broke the build.
- 047955bUpdated the README.
- b5974c0Updated the README.
- f52659eUpdated the roadmap.
- c0c787cAddressed the Mac App Store review's concerns.
- 0cce9f2Website: added a feature request link.
- 5686c70Website: added a feedback link to the navigation bar.
- d30391eRelease and App Store publishing notes for 1.0.1.
v1.0.0 2026-08-04Release on GitHub →
- 31d1383Prepared the Mac App Store build: sandbox-safe file access and the publishing checklist.
- 696be70Added the 65xx example computers, with their ROM images.
- 8e88ce2Added the Z80A CPU and reorganised the processor parts.
- 726bf46Website: updated the hero breadboard.
- 0d3186bThe Properties dialog lists a chip's live warnings.
- 8b01b6dAdded AI desk review: ask the AI to check a circuit you built by hand.
- d413dbfWebsite: refreshed the hero breadboard.
- b1f6687AI-built circuits use both power rails, short power wires and a single rail-to-rail link.
- f8bc4d4Website: the hero shows several breadboards.
- 981c257Project files carry memory chip contents, so one file holds the whole design.
- da4e5d4Cmd/Ctrl-click adds a part or wire to the selection, or takes it out.
- 3a7d4fbClocks can run at 100 Hz.
- 7b1aa7aA multi-part selection drags as one unit.
- c50df9bUpdated the user guide and keyboard shortcuts.
- f9c7b70Code review fixes for the website's downloads, version history and release signing.