I wrote a blog post about the work we did to make player builds in Unity faster: https://blog.unity.com/technology/accelerating-player-builds-with-incremental-build-pipeline
Accelerating player builds with an incremental build pipeline | Unity Blog

Unity Principal Software Engineer Jonas Echterhoff shares how the team has worked to speed up both the script compilation pipeline and the player build pipeline by making them incremental.

Unity Blog
@jonas Ahh yes, finally a public writeup of this massive amount of work! Nice!
@aras yes, well - been sitting on this for months, but even something simple like publishing a blog post is a long process with many people involved in this corporate world. I still remember when it was "here's the WordPress login, knock yourself out" 😂
@jonas I remember when “if you need approval for a blog post, you are blogging wrong” was as almost an actual rule :) For this one, I’m just happy it has zero words “leaders” or “e-book”
@jonas hi, a completely sincere, unironic question: I've just upgraded Unity to version 2022.2.0f1 and noticed that Android builds now take a whopping 8-10 minutes (up from 1-2 minutes on version 2021.2.1f1). Would you happen to know what would cause such build time increase (I'm on MacBook Pro with OSX 10.15)?
@goshki I don't know from that info. The blog post has instructions on how to profile your builds, so you can exactly see how much time it takes. Can you try that, and see how the profiles look different, and let me know? If the differences don't make sense, you can then file a bug with repro steps and send me the case id, and I or someone can take a look.
@jonas thanks, I'll take a closer look and get back to you. 🙂

@jonas great writeup! And extra love from me for mentioning the Android incremental deploy, hope PRAM is still live and kicking :)

Didn't think at the time that whole project would have been _that_ massive, but we ended up moving mountains didn't we :)