v0.18.0

What Changed

Features

• [#1051] feat: add derating criteria for fuse, relay, resistor, and switch (@weibullguy)

Maintenance

• [#1043] build: add support for Python 3.9 and 3.10 (@weibullguy)
• [#1041] build: drop support for Python 3.6 (@weibullguy)
• [#1040] refactor: refactor the plot widget class (@weibullguy)