dispenserPlacesBlocks:

• Several items such as torches, sea pickles, turtle eggs, seeds, doors, tall grass, string, and redstone dust are both placed and dispensed as an item at the same time (probably more but I didn't test everything)
• Plays a stone placing block sound even if the position is invalid (example: saplings with an invalid block below)
• Can't place chests (although it does work with trapped chests)
• Can't place hoppers/chests/furnaces if dispensersFillMinecarts is enabled even if no minecart is in front
• Creates water from air if seagrass or kelp is placed
• Doesn't update blocks that are powered by redstone when placed (such as redstone lamps)

dispensersFeedAnimals:

• Doesn't feed baby animals to grow them slightly
• Warped fungus doesn't feed striders (1.16)

dispensersMilkCows:

• Doesn't appear to work at all (working as of 1.16.3)
• This should probably also work with mooshrooms and stew
• Milk bucket is destroyed if dispenser is full

dispensersToggleThings:

• Doesn't toggle redstone dots/crosses (1.16)
• Doesn't toggle trapdoors, doors, fence gates, etc (WAI but rule description still mentions this works)

dispenserToggleThings: i removed trapdoors, doors, fence gates because they are already possible in redstone

Alright but the rule description still implies that it's possible to toggle doors and such

dispenserToggleThings: i removed trapdoors, doors, fence gates because they are already possible in redstone, i removed bells in the new one too, I will add crosses thanks for reminding me. (look at #98)

oh yeah i forgot i kept it like that

I believe coral fans are another item that is both placed and dropped as an item

cocoa beans are also placed and dropped, consuming 2 items (at least it doesn't allow for duplication)

Carpets can't be placed by dispensers.

Glowstone can't be placed according to another issue.

Im working on fixing the issues, all should be good in the upcoming release

Also just tested dispensersMilkCows works perfectly fine, idk what u r on about @manyrandomthings

Also just tested dispensersMilkCows works perfectly fine, idk what u r on about @manyrandomthings

That seems to be working now but it was broken in 1.16-pre2 when I made this bug report

All the issues should be looked after in the next release, this issue can be closed now