Supported Client Versions (ViaVersion and ViaBackwards) Staff Reference

Public-safe technical notes for staff who configure or support Supported Client Versions (ViaVersion and ViaBackwards) on 1MoreBlock.

Verify destructive, economy-changing, permission-changing, and player-data commands against the installed build and an approved support case before running them.

Commands

Command	Permission	Purpose
`/viaversion list`	`viaversion.admin`	Lists connected player protocol versions.
`/viaversion pps`	`viaversion.admin`	Shows packet-rate diagnostics.
`/viaversion dump`	`viaversion.admin`	Creates a diagnostic dump; review before sharing.
`/viaversion reload`	`viaversion.admin`	Reloads ViaVersion configuration.

Permissions

Permission	Purpose	Suggested access
`viaversion.admin`	All ViaVersion administrative commands in the installed build.	Server administrators only

Placeholders

No plugin-owned placeholders were verified. PlaceholderAPI may still expose values through a separate expansion or an integrating plugin.

Configuration and integrations

ViaBackwards depends on the ViaVersion protocol platform.
Geyser uses separate Bedrock translation and may soft-integrate with ViaVersion.
LuckPerms and 1MB-CMIAPI Diagnostics can observe protocol/version context.
Diagnostic dumps can expose server/plugin details; review before posting publicly.

Examples

/viaversion list
/viaversion pps
/viaversion dump

Troubleshooting

Record exact client version, server native version, ViaVersion/ViaBackwards builds, and disconnect message.
Reproduce without client protocol/network mods where possible.
Check official support tables before changing blocked-version or protocol settings.