Upgrade Akka-Typed sample to the Akka 2.5.x based?

[He-Pin]

I know the book is using Akka 2.4.x，but yes,there is something changed.

[He-Pin]

chapter 15 needs an overhaul
akka/akka-meta#62

[rkuhn]

Yes, that is true, especially since 2.4 has reached EOL. Tonight I’m out of steam, but this will be a good thing to dabble with when I get a free evening.

[He-Pin]

@rkuhn How about the book?will there be an update there, I mean in chapter 15.