Java Edition 1.15.2 Pre-Release 1

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 "footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" rowspan=\"2\">[[Java Edition 1.15.1|<span style=\"margin-right:-0.35em\">◄</span>◄  1.15.1]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.15.2|1.15.2]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 1.16| 1.16 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n\n<td style=\"padding: 0.4em\">''' 1.15.2 Pre-Release 1'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 1.15.2 Pre-release 2| 1.15.2 Pre-release 2 ►]]\n</td>\n</tr>\n</table>"
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1.15.2 Pre-Release 1 (known as 1.15.2-pre1 in the launcher) is the first pre-release for Java Edition 1.15.2, released on January 14, 2020.^[2] This is the first pre-release released in 2020.

Gamerules

• Added doPatrolSpawning.
  • Controls the spawning of patrols.
  • Defaults to true.
• Added doTraderSpawning.
  • Controls the spawning of wandering traders.
  • Defaults to true.

Multiplayer

• Added a legal disclaimer when clicking the multiplayer button from the main menu: a new information screen informs the player that "Online play is not rated".

Saplings

• Oak and birch saplings grown within 2 blocks of a flower on the same Y-level have a 5% chance to have a bee nest.

Bees

• No longer anger when a nearby beehive or bee nest is destroyed using a Silk Touch tool.

Horses

• The texture of the horse armor slot in the horse GUI has been changed to reflect the current horse armor textures.

Bee nests

• Now have a 2% chance to spawn in flower forests.
• Now have a 0.2% chance to spawn in birch forest, birch forest hills, forest, tall birch forest, tall birch hills, and wooded hills biomes.

Status effects

• Effects are now stored when overwritten by an effect of a higher amplifier.
  • A beacon effect only temporarily overwrites a lower amplifier potion until the beacon effect runs out.

Block models

• Added gui_light option in models to allow controlling light when rendering model as an item in a GUI.
  • If set to side, the model is rendered like a block.
  • If set to front, the model is shaded like a flat item.

Game window

• Now displays the session type in the window title, such as singleplayer or multiplayer.
  • If applicable, the window title also specifies the type of multiplayer server the player is on, such as on a LAN or third-party server.
  • Example: "Minecraft 1.15.2 - Multiplayer (LAN)".
  • Available types: "Singleplayer", "Multiplayer (LAN)", "Multiplayer (Realms)", and "Multiplayer (3rd-party)".

Main menu

• If the game is modded, word "(Modded)" appears after the game version found on the main menu.
  • Example: "Minecraft 1.15.2 (Modded)".

Profiler report

• Now captures more information about performance problems.^[3]

Textures

• Removed a stray pixel from the bottom-right of the critical hit particle texture.

29 issues fixed

From released versions before 1.15

• MC-862 – Spawn protection does not work for item frames, paintings and armor stands.
• MC-1541 – Beacon effect removes potion effect of the same type.
• MC-51053 – Furnace minecarts lose power after navigating corners.
• MC-88038 – Furnace minecarts go backwards when turning corners.
• MC-106468 – End crystal beam has incorrect texture on one side.
• MC-150575 – Concrete powder does not turn into concrete when letting it fall beside water.
• MC-153987 – Falling down ladders while wearing elytra.
• MC-166319 – B on "Open in browser" is lowercase in link confirmation GUI.
• MC-167018 – Misplaced pixel in critical hit particle texture.
• MC-167079 – Horse armor texture is off.
• MC-167416 – Distance from where a monster will stop a player from sleeping is off-center.

From 1.15

• MC-165695 – Hoppers harvesting honeycomb from bee hives and bee nests only pick up one honeycomb.
• MC-166312 – Loom UI pattern icons are too dark.
• MC-166324 – "Raw input" button has lowercase "i".
• MC-166397 – Entities become white from certain angles when affected by glowing and invisibility effects.
• MC-166722 – Some custom item models appear dark in the inventory.
• MC-167201 – Invisible glowing entities do not respect their team color.
• MC-167219 – Reloading a resource pack enough times will cause intense lag.
• MC-167220 – Items on marker armor stands no longer glow.
• MC-167235 – Distance from where you can enter a bed is off-center.
• MC-167344 – com.mojang.blaze3d.platform.ClipboardManager leaks direct buffers.
• MC-167444 – iron_golem_crackiness_* textures show up on invisible iron golems that are damaged.
• MC-167709 – Bees that ride a boat, minecart or other entities when entering their hive or nest cannot leave the hive or nest ever again.
• MC-168091 – Concrete powder does not convert into concrete when dropped into deep water.

From 1.15.1

• MC-168230 – End crystal beam is dark/desaturated.
• MC-168467 – Bees do not remember how many crops they have pollinated.
• MC-168657 – TrueTypeGlyphProviderBuilder.create(ResourceManager) leaks buffer.
• MC-169157 – Breaking a hive with obstructed front makes bees vanish.

Other

• Fixed crashes and exploits.^[3]

• Unlike the second pre-release, this version name has an uppercase "R" in-game, similar to 1.15-pre2.