Deprecations in Ember v4.0+

Here’s a list of issues I’ve encountered in Ember 4.0:

[ ] #379 assign is deprecated. This needs to be replaced with either Object.assign or the spread operator.
[ ] #380 Implicit injection was deprecated and is now disabled in 4.0. Lauren deprecated injection 6 years ago, so I would vote for removing the feature entirely. Also, it’s kind of weird that injection is still enabled by default! I had no idea it was still on and had to explicitly set injectionFactories: [] in my config to disable it.

adopted-ember-addons / ember-cli-flash