Bug fixes and performance improvements.

• Pi projects now have a Solution button: one tap puts back the working circuit and code. • Pi lessons now follow the language you choose in Settings. • Playground: the parts bar and the 3D board now fit every screen. • Smaller fixes and improvements.

• Pi Playground: an empty Raspberry Pi that is all yours. Wire parts, write Python, and find it saved next time. • ESP32 for Pro members: choose an ESP32 board in the Playground, shown in 3D, with its own pins, PWM, analog inputs, touch and a simulated radio. The wiring check and power budget follow the board you choose. • Community circuits: share what you build, open circuits other makers made, press Run and make them yours. • 9 new lesson categories, from sensors, motion and IoT to screens & I²C, logic gates and soldering. • 10 new story projects, plus far more daily challenges and faults to track down on the Fault Bench. • For Pro members: pass the exam and earn a certificate anyone can verify with a link. • Fixes: ultrasonic lessons measure a real echo, encoders count every step, and motors can run in reverse.

Describe a circuit and the AI builds it — the app runs it in the simulator and checks the wiring, the power budget and whether it actually does anything, before you load it. Pro. Projects keep your notes, a checklist and saved points with a circuit, and export as a folder the Arduino IDE can open. A reference pack with chip and board pinouts, connectors, SMD resistor codes and logic tables. Search across lessons, parts, tools and faults. A guided tour the first time you open the Playground. Undo and redo on the bench.

New: an op-amp category. Twelve lessons take you from the golden rules to inverting and non-inverting amplifiers, comparators and the Schmitt trigger the thermostat lesson kept referring to, each with its own schematic and a gain slider you can move and watch. Now in your language: every lesson in the Power and Op-Amps categories, plus the Library shelves and both circuit simulators, are fully translated — no more pages that switch to English partway through a course. Fixed: schematics are drawn from one shared symbol set, so diodes, transistors and MOSFETs look the same everywhere, and captions no longer run off the canvas or collide with the drawing.

New: a full Raspberry Pi course. Ten lessons in the Pi tab take you from what a GPIO pin is to reading a button and finding your own bugs, with runnable gpiozero Python throughout. Fixed: the code editor now stays visible while you type instead of hiding under the keyboard, and the line you are editing scrolls into view. Fixed: lesson text in every translated language now matches the diagram above it.

New and corrected diagrams across the lessons. Dozens of theory lessons that had no picture now have one — transistors, relays, logic gates, RC timing, the multimeter, ammeter vs voltmeter, short and open circuits, and more. Several diagrams that showed the wrong part have been redrawn, including the capacitor lesson.

• 10 new Playground components for Pro: LCD display, NeoPixel strip, stepper motor, DHT temperature sensor, joystick, rotary encoder, Wi-Fi module and real-time clock • 5 more Raspberry Pi projects — a doorbell and an SOS beacon are free for everyone • Redesigned sign-in screens and a Playground header that no longer clips • Fixes: notification prompts no longer interrupt a celebration, Practice Drills no longer lock a session you just paid for, and lesson text renders properly • The daily-reminder prompt and the component cutaway labels now appear in your own language

Bug fixes and performance improvements.