i downloaded the last version of the mod for 1.16.4, started doing my own things in creative, following tutorals and such. then i noticed tons of things are different in my mod, crafting recipes and items missing. no extractors, no funnels for chests and filters dont even work among others. hope someone can help me, loving the mod.

Extractors were merged into the funnels, put a funnel on the side of an inventory at the end of a belt moving away from it and it will extract the items to the belt. (If the belt is moving towards it, it will accept the items into the inventory.)

Not sure what you mean by "no funnels for chests"? Both funnels in the mod work like hoppers without a GUI.

As for filters, you can filter for a single item by right-clicking it into the filter slot, or multiple items by using the filter item then right-clicking that into the filter slot.

thanks, that's what I thought the answer would be. the belt observer just looked so convenient

I may be in a similar situation. I cannot find belt observers. I see people use them, I have the lastest patch, and unless they were removed, it may be a problem with other mods?

For Signal when item pass, you now uses Content Observer.
For Moving Item to other belt, you now uses Tunnel.