Stained glass (+ panes) and shulker boxes still have the outdated colors

Unable to start Minecraft with the latest Java 8 JRE or JDK

Setting time to any value below 14xxx sets time to 14xxx

Dark patches appear

Generated but unpopulated chunks are treated as ungenerated...

Random chunks get regenerated

Chunk corruption and dark patches

Ticking block entity exception with chest minecarts

Old world gets corrupted upon loading in 18w45a

Minecraft crashes with: g: Non [a-z0-9/._-] character in path of location: minecraft:CaveSpider

Smooth Quartz has wrong texture

Worlds converted from 1.8.x cause JSON error with signs, etc.

Server crashes when I join

Rails are rendered incorrectly

Double slabs become seamless

Torches and redstone torches are rendered incorrectly

Lots of blocks are suddenly gone

A load of "Unable to locate sign" spam and 95% of blocks rendering as air - in SMP (singleplayer is fine)

Crash loading world containing blocks with removed data values: java.lang.IllegalArgumentException: Cannot set property

Chests make client crash in multiplayer

Cacti do not cast shadows.

Ice in large quantities renders badly from distance.

Double stone slabs with dataValue 9 or higher render incorrectly.