The configuration file is located in plugins/ViaVersion/config.yml. It uses the YAML Syntax. The config is split into sections, you can see these by looking at the comments prefixed with #.
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Get the world names which should be returned for each vanilla dimension
1.9 & 1.10 clients on 1.8 servers options
This options only apply to you if you use a 1.8 server, these enable consistent visuals / gameplays across future versions where features have changed.
prevent-collision - default: true (Boolean)
In 1.9, players can now push each other. To prevent this when scoreboard teams are sent ViaVersion can set the collision to not happen so that the gameplay is balanced. (Plugins like ColoredTags use teams)
auto-team - default: true (Boolean)
Most servers don't use scoreboard plugins, in this case we send our own team to the player to prevent them colliding with other players. If you use a plugin like ColoredTags you should turn this off. Furthermore if you are having issues with Bungee and teams, consider turning it off too.
suppress-metadata-errors - default: false (Boolean)
Due to changes in 1.9 and above to how entity data is sent some plugins send data that we can't find the 1.9 equivalent for (Usually means they're doing something wrong!). When this happens we'll tell you all the info in your config and you will need to debug and work out which plugin is causing this and contact the author, (these are related to the NMS class called Datawatcher).
Alternatively, you can just suppress metadata errors but this means mobs may look different on 1.9 to 1.8, but most of the time this is fine.
shield-blocking - default: true (Boolean) - Note: On BungeeCord the client will not be able to see them self blocking.
In 1.9, the blocking animation when you right click a sword was removed. It's not possible to simulate meaning 1.9 would not be able to see 1.8 blocking, as an alternative you can visually see these as shields. These do not change any game play and just allow 1.9 to see clients blocking and perform the blocking action with a sword themselves.
Disabling this will mean that 1.9 clients will not be able to see players blocking and will not be able to block properly.translate-ocelot-to-cat - default: false (Boolean)
If disabled, tamed cats will be displayed as ocelots to 1.14+ clients on 1.13 servers. Otherwise, ocelots (tamed and untamed) will be displayed as cats.
enforce-secure-chat - default: false (Boolean)
Determines the value sent to 1.19+ clients on join if currently not accessible by ViaVersion.
It is not recommended to fake this value if your server is running 1.19 or later, as 1.20.5 clients have stricter chat handling and may get kicked otherwise.
1.9 & 1.10 clients on 1.8 servers options
This options only apply to you if you use a 1.8 server, these enable consistent visuals / gameplays across future versions where features have changed.
prevent-collision - default: true (Boolean)
In 1.9, players can now push each other. To prevent this when scoreboard teams are sent ViaVersion can set the collision to not happen so that the gameplay is balanced. (Plugins like ColoredTags use teams)
auto-team - default: true (Boolean)
Most servers don't use scoreboard plugins, in this case we send our own team to the player to prevent them colliding with other players. If you use a plugin like ColoredTags you should turn this off. Furthermore if you are having issues with Bungee and teams, consider turning it off too.
suppress-metadata-errors - default: false (Boolean)
Due to changes in 1.9 and above to how entity data is sent some plugins send data that we can't find the 1.9 equivalent for (Usually means they're doing something wrong!). When this happens we'll tell you all the info in your config and you will need to debug and work out which plugin is causing this and contact the author, (these are related to the NMS class called Datawatcher).
Alternatively, you can just suppress metadata errors but this means mobs may look different on 1.9 to 1.8, but most of the time this is fine.
shield-blocking - default: true (Boolean) - Note: On BungeeCord the client will not be able to see them self blocking.
In 1.9, the blocking animation when you right click a sword was removed. It's not possible to simulate meaning 1.9 would not be able to see 1.8 blocking, as an alternative you can visually see these as shields. These do not change any game play and just allow 1.9 to see clients blocking and perform the blocking action with a sword themselves.
Disabling this will mean that 1.9 clients will not be able to see players blocking and will not be able to block properly.
no-delay-shield-blocking - default: false (Boolean)
If this setting is active, the main hand is used instead of the off-hand to trigger the blocking of the player. With the main hand the blocking starts way faster. (Requires "show-shield-when-sword-in-hand" to be false)
show-shield-when-sword-in-hand - default: false (Boolean)
If this setting is active, the shield will appear immediately for 1.9+ when you hold a sword in your main hand. The shield disappears when you switch to another item. (Requires "shield-blocking" to be true)
simulate-pt - default: true (Boolean)
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