Java Edition 1.15.2 Pre-Release 1

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, and the first version of the new year and the new decade.

Command format

 * Gamerules
 * Added.
 * Controls the spawning of patrols.
 * Defaults to.
 * Added.
 * Controls the spawning of wandering traders.
 * Defaults to.

General

 * 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".

Blocks

 * 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.

Mobs

 * 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.

World generation

 * 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.

Gameplay

 * Status effects
 * Effects are now stored when overwritten by an effect of a higher amplifier.
 * A beacon effect will only temporarily overwrite a lower amplifier potion until the beacon effect runs out.

General

 * Block models
 * Added option in models to allow controlling light when rendering model as an item in a GUI.
 * If set to, the model will be rendered like a block.
 * If set to, the model will be 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, "(Modded)" will appear after the game version found on the main menu.
 * Example: "Minecraft 1.15.2 (Modded)".


 * Profiler report
 * Now captures more information about performance problems.


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

Fixes

 * Other
 * Fixed crashes and exploits.

Video
Video made by slicedlime:

Trivia

 * 1.15.2 Pre-Release 1 is the first pre-release of 2020 and of the 2020s decade
 * Unlike the second pre-release, this version name has a uppercase "R" in-game much like 1.15 Pre-Release 2.