- Interfaces for streams wrappers (clean up apis) - primarily userland, small to no BC
- Resources -> objects (engine storage and attachment) - primarily core, some BC issues
- finish implementations for callbacks - primarily feature addition
- async IO features (see: jpauli) - feature addition with core implications and some BC issues
- curl:// stream wrapper - feature addition (functionality of --with-curl-wrappers but with curl:// as prefix)
- filtering api - buckets hard to use, user_filter class is api possessed - userland and BC
- factory registration for wrapper creation - feature addition
- ability to plug into transports from php land instead of requiring C extensions
Streams Interfaces: