Spine 3.8.99 !!link!! Jun 2026

A common runtime issue involves a texture mismatch. For example, in the Phaser framework, upgrading to a new runtime with 3.8.99 data could cause the texture to look weird. This is usually due to a "pre-multiplied alpha" setting mismatch between the texture atlas exported from Spine and what the Phaser runtime expects.

Q: How to convert spine json file to binary · Issue #1959 - GitHub Spine 3.8.99

: Introduced in 3.8, this feature allows you to pack images as polygons rather than simple rectangles. This ensures a tighter packing of your texture atlas. A common runtime issue involves a texture mismatch