Minecraft wiki entry for Development_versions, associated text: MC-36716 – Square enchantment glint is shown on advancements screen and toast popups.
MC-49203 – Rendering depth of beacon and ender chest in superflat preview is wrong.
MC-69302 – Non-trivial blocks on the achievements screen/advancement tabs are rendered in the wrong order.
MC-79867 – Guardian beam brightens nearby entities.
MC-89996 – hoverEvent changes lighting for displayed block of minecart and end crystal.
MC-98308 – Armor opacity/transparency doesn't work correctly.
MC-108893 – Standing in a chunk with an end crystal with a beam target causes entity shading to render incorrectly.
MC-134865 – Normal text between obfuscated text can flicker as well.
MC-148107 – Ominous banners render differently in advancement ui and toast.
MC-153298 – Wandering traders can spawn inside small spaces, such as farms.
MC-158843 – Mobs can no longer spawn on jack o' lanterns and redstone lamps.
MC-161902 – Game crashes when a turtle ridden by an illager enters water.