Converting Code from version 2.0.11 to version 3

[williamsokol]

Do we have some sort of reference on common problems when converting over?

I was using the esp32 board manager, and never realized how far it got updated till I used a new laptop.
Using the newest version breaks a lot of my code and I figured before I start to rediscovering all the updates needed, I should ask the community first.

I am specifically trying to convert everything to version 3.0.7 because I saw it is the latest version with face recognition for the esp32-s3
#10881 (comment)

[SuGlider]

There is a page that talks about how to migrate from Arduino Core 2.x to 3.x:
https://docs.espressif.com/projects/arduino-esp32/en/latest/migration_guides/2.x_to_3.0.html