Spine 3899 Updated Guide

Spine’s animation events (音效触发、粒子特效或游戏逻辑回调) are critical for interactive experiences. Prior to 3899, events queued at the exact end of an animation cycle would occasionally be dropped. The update patches the event dispatcher to ensure that end-of-timeline events fire consistently, no matter the playback speed or looping mode.

A known issue in 3.8.99 affects bone binding when multiple bones are selected simultaneously. Specifically, when selecting several bones and then attempting to bind them to an image, the first bone may incorrectly display as not bound to the image, while child bones can still bind properly. However, because version 3.8 is no longer receiving updates or fixes, the official recommendation is to upgrade to a newer version of the Spine editor to continue enjoying the latest improvements. spine 3899 updated

If you see "gray lines" or pixelated edges on textures, this is usually a mismatch in Pre-multiplied Alpha (PMA) A known issue in 3

settings. Ensure the export settings in Spine match the runtime settings in your game engine. Trial Launcher Error If you see "gray lines" or pixelated edges

: It is a common baseline for older projects using runtimes like Unity , Phaser , or Unreal Engine 4 .

: Exported character json data maintains strict compatibility with engine runtimes, eliminating schema mismatches when working between different micro-versions like 3.8.97 and 3.8.99.

Multiple bug fixes were implemented between versions 3.8.75 and 3.8.99, addressing various stability and functionality issues. Consequently, users are strongly advised to transition away from older patch versions such as 3.8.75 to minimize potential problems.