Changelog

Simulator 1.6.022 September 2026

The launch build

• 23 component types, 6 example systems (S-Plan, S-Plan with a digital stat, S-Plan with a type B cylinder stat, wireless S-Plan, Y-Plan, combi with a wireless stat).
• 7 courses: 45 lessons and 5 diagnosis challenges, every connection checked as you make it.
• Random Fault mode: 23 call-outs, weighted by how often they happen on site, four hints that never name the part.
• The multimeter reads AC volts and resistance on any terminal, live or dead.
• Progress saved to your account, so a college learner keeps their record from one PC to the next.
• Runs in the browser: nothing to install, and the lessons, faults and marking stay on our servers.
• One version number everywhere; the beta notices are gone; the launcher counts its courses from the data instead of a typed number.
• The Sandbox plan: the whole simulator, no lessons or call-outs, at one price for everyone.

Machine-testedTest harness before release: every lesson replayed (45 of 45), every challenge (50 of 50 checks), every fault’s symptom proven on every circuit it fits (477 of 477), the electrical core against the S-Plan and Y-Plan truth tables (31 of 31), Random Fault round after round (438 of 438).

Website22 September 2026

drawwarm.com rebuilt

• A page for every course, fault, component and wiring diagram, generated from the simulator’s own data.
• Pricing with the Sandbox, the full version and organisation seats; the terms, privacy, cookie and refund policies written to UK law.
• The interactive wiring toy on the home page: four parts from the simulator, live terminals, click or tap to wire.
• Accounts, checkout and the play page, switched on with the founder launch.