Request for Upgrade Guides for common issues

[Jbenisek]

With so many name changes and component changes between exp and vanilla it would be helpful to have some guides covering those basic issues. Since so many are having them and will be over the next years as they upgrade from 1.16.100 and 1.19.0 to current.

thank you.

Main issues I've seen are item and world gen

[Jbenisek]

Example

[QuazChick]

Hopefully #857 and #858 help with moving away from the deprecated JSON block/item events.

[QuazChick]

We now have a block format history page published at https://wiki.bedrock.dev/blocks/block-format-history. It should be useable as an upgrade guide if followed in reverse from the format version you're currently using. A similar page is planned for items.