Steps to reproduce:

1. Create new project and script

useTethers: FIXED
2. Try to access useTethers property through script
3. Notice that there is none

useContinuousCollision: FIXED
4. Try to access useContinuousCollision property through script
5. Notice that it's type of float although bool is expected

useVirtualParticles: WON'T FIX
6. Try to access useVirtualParticles property through script
7. Notice that it's type of float although bool is expected
Workaround: useVirtualParticles = 0f disabled this option; userVirtualParticles = 1f - enabled it.

solverFrequency : FIXED
8. Try to access solverFrequency property through script
9. Notice that it's type of bool although float is expected

Note: These properties in documentation are also invalid