Java Edition 1.18 experimental snapshot 5

1.18 experimental snapshot 5 is the fifth experimental snapshot for Java Edition 1.18, released on August 25, 2021, which makes numerous changes and tweaks to world generation.

Mobs

 * General
 * Removed the height-based spawning change that was made in snapshot 3.

World generation

 * Badlands
 * Slightly decreased the size of Badlands


 * Caves
 * Carvers can now replace red sand and calcite during world generation.


 * Dripstone Caves
 * In world generation, grass is replaced with stone (if generated near grass).


 * Jungle Edge
 * Re-added the Jungle Edge biome.


 * Lush Caves
 * Now generate with springs.


 * Mountains
 * Mountain tops are now more jagged and pointy.
 * Mountain areas and peak biomes now are slightly larger on average.
 * Raised the average mountain height


 * Mushroom Fields
 * Tweaked mushroom fields biome, now it matches the shape of the islands better.


 * Rivers
 * Tweaked the depth of rivers and the steepness of river banks.
 * They are less likely to be super deep or get cut off in flat areas.
 * Rivers integrate better with swamps, the river tends to get shallow and merge with the swamp instead of carving through.


 * Swamps
 * Moved swamps slightly more inland.
 * Swamp trees can grow in slightly deeper water than before, populating deeper marshes.


 * General
 * Small lakes features are no longer placed in dry and hot biomes (desert, savanna, badlands).
 * Reduced the number of lake feature placements in other biomes.
 * Water springs can generate in more types of blocks such as dirt and snow, increasing the likelihood of small mountain streams and waterfalls.



Fixes

 * Fossils with diamonds no longer generate above deepslate level.
 * Fixed an unintentional change from snapshot 4 that made mountains lower and smoother.
 * Small hills and overhangs (3d noise in tech speak) generate more often in flat areas, like in snapshot 3.

Issues
This version is not supported on the bug tracker, and therefore issues affecting it will be resolved as "Invalid".

Trivia

 * This experimental snapshot was released on a Wednesday, unlike the previous ones.
 * The changelog for this experimental snapshot states that "Fixed an indent in the code. Doesn't matter at all so I don't know why I'm mentioning it here."