- In the Maxwell solver, the RK4 time integrator limits the practical values of the conducibility `sigma`. If the absolute value of `1 - sigma*sim.dt/(epsilon*const.eps0)` is greater than 1, the computation fails. This will be solved by leapfrog time integration in a subsequent version.
- Repetitive sources on GPU.
## Version v0.2 (NOT RELEASED YET)
- Fixed performance issue in the evaluation of boundary/interface sources (4463681c).
