Features:
- Possibly unhandled rejection handler will always get a stack trace, even if the rejection or thrown error was not an error
- Unhandled rejections are tracked per promise, not per error. So if you create multiple branches from a single ancestor and that ancestor gets rejected, each branch with no error handler with the end will cause a possibly unhandled rejection handler invocation
Bugfixes:
- Fix unhandled non-writable objects or primitives not reported by possibly unhandled rejection handler