[prophesi]

Honestly, in terms of privacy, I think it's a decent trade-off (from what I gathered from this sparse article).

PushKit

Pros:

- Apps and their servers can be developed in a manner wherein the server doesn't know if it's sending a message or a read receipt (aka, no metadata leak).

Cons:

- "[...] developers could also use PushKit to collect information about the location of users and other sensitive data"

So with the traditional Notifications API, you lose that pro, but now _all_ of your apps with potentially ill-intentions can no longer glean your location and other data.

Edit: Though, another huge con to this is the amount of dev hours to abide by this change. It's already a pretty sizable engineering task to create a fast, secure, and end-to-end encrypted messaging app.