Echo Protocol

Echo Protocol 0.5.0-beta.2 — Hotfix 1

This build contains a major cross-version stability and visual regression fix for Echo Protocol.

Fixed

• Fixed Echoes sometimes using the default Steve skin instead of the target player's real skin.
• Fixed player skin data not being correctly propagated into the modern render state on newer Minecraft versions.
• Fixed fallback skins potentially remaining cached instead of updating to the real player skin.
• Fixed Echoes appearing fully opaque instead of translucent on Minecraft 1.21.9–1.21.11.
• Restored the intended ghost-like transparency, alpha and fade behavior.
• Fixed Echo movement being able to pass through solid blocks in some situations.
• Replaced unsafe movement behavior with collision-aware movement and swept-path validation.
• Memory Echoes now safely stop and fade out when an old recorded route has become blocked by newly placed blocks.
• Fixed The Original advancement being granted before The Original had actually manifested to the player.
• Advancement progression now waits for the corresponding gameplay event to successfully occur.
• Improved cleanup for failed or blocked Echo events.
• Improved player skin caching and validation across supported Minecraft versions.
• Fixed Minecraft 1.21.1 version metadata being too broad.

Verification

Every supported Minecraft version from 1.21.1 through 1.21.11 was re-tested using dedicated Prism Launcher instances.

Final production JARs were tested for:

• Minecraft client startup
• Fabric dedicated server startup
• Custom player skins
• Echo transparency and fading
• Collision and wall handling
• Memory Echo playback
• The Original
• Event manifestation
• Advancements
• Gameplay behavior
• Persistence
• Multiplayer privacy on representative versions
• Client/server logs

52 automated tests also pass on the final builds.

Important

This is a bug-fix release only.

There are no new gameplay features and the mod version remains 0.5.0-beta.2.

It is strongly recommended to replace older 0.5.0-beta.2 builds with this hotfix.