ViaVersion Versions Save

Important release schedule change

Starting 1.20.5, ViaVersion and ViaBackwards will only be released a day/a few days or so after a Minecraft update unless the protocol changes of the update were trivial. If you want early-access, usually days or even weeks before the final release, you can subscribe to either:

• GitHub Sponsors (preferred option. Use the /verify command on this Discord after), or alternatively
• Patreon (see the highest tier and make sure to link Patreon to your Discord account under Settings->Connections) This also includes access to a private repository with the code, which will be pushed to the public repository after the given delay on a Minecraft update.

At the same time however, bug fix patches will be released more regularly, always immediately public, and more of the low-priority issues will be tackled.

Due to the insane pace Mojang has been adding more and more complex technical features since 1.19/1.20, updating ViaVersion and making sure it works well enough has become a lot more time-consuming. Without some extra incentive, I can't really justify putting increasing amounts of free time into these updates, no matter how much I enjoy doing them.

Changes

• Added sanity checks to item reading across all versions
• Fixed written books in 1.20.2->1.20.3
• Fixed 1.20->1.20.2 tag handling
• Fixed exceptions during client leave on older servers
• Fixed various component conversion issues in multiple versions
• Fixed issues with skins and permanent loading screens on Velocity (by Aeltumn)

Note: Via* on BungeeCord does not work properly at the moment, we recommend using our plugins either on the backend servers or on Velocity instead.

• Re-sending same resource pack will no longer result in it being downloaded again in 1.20.2->1.20.3
• Fixed issues with component conversion in 1.20.2->1.20.3
• Reverted a change from the previous update that could cause plugin messages to be send to the server too early in the login process in 1.20->1.20.2
• Fixed tags conversion in 1.20.2->1.20.3
• Fixed map data reading across versions

Includes changelogs from 4.9.0 (this patch fixes an issue with resource pack status handling)

1.20.3 client support

• Various fixes to configuration phase handling in 1.20.2->1.20
• Improve handling of 1.8 block placements inside the client entity (Pablete1234)
• Various small validation changes in legacy version handling (by RaphiMC)
• Fix startup error on 1.20.2 Spigot servers (by frengor)
• Cleanup command registration (by FlorianMichael)
• Rebranded included nbt library (now ViaNBT)

1.20.3 client support

• Various fixes to configuration phase handling in 1.20.2->1.20
• Improve handling of 1.8 block placements inside the client entity (Pablete1234)
• Various small validation changes in legacy version handling (by RaphiMC)
• Fix startup error on 1.20.2 Spigot servers (by frengor)
• Cleanup command registration (by FlorianMichael)
• Rebranded included nbt library (now ViaNBT)

• Fixes to configuration state handling
• Fixed 1.20->1.20.2 custom potion effects
• Fixed the client's skin layers being disabled on proxied server switches
• Fixed signs not displaying properly for 1.20+ clients on some older versions (by riku6460)

1.20.2 client support

• Optimize memory allocation for data palette (by Pablete1234)
• Smithing menus in 1.19->1.20 are now mapped to furnaces (by FlorianMichael)
• Added compatibility with Sponge API 10 (by avaruus1)
• Removed 1.9 backwards protocol handling and moved it to ViaBackwards (by FlorianMichael)
• Fixed item display rotation in 1.19->1.20
• Fixed maps with no map ids showing up as empty on 1.17+ (by RaphiMC)
• Fixed handling of null components in more places in 1.18->1.19
• Fixed block place/break event cancellation handling in 1.12->1.13 block connections (by Pablete1234)
• Fixed some 1.8->1.9 movement handling issues (by RaphiMC)
• Configured automated publishing to Hangar and Modrinth

1.20 client support

• Improved 1.12->1.13 translatable handling
• Fixed >1.18 vibration particle handling
• Fixed 1.12->1.13 redstone blockconnections
• Fixed old expected behavior of entity teleport packets working on the client's entity in 1.19.3->1.19.4 (by RaphiMC)
• Fixed records not stopping in 1.19.3->1.19.4 (by Camotoy)
• Fixed a magical startup error sometimes appearing
• Fixed high CPU usage on Java 8 due to a Java bug (by RaphiMC)

• Slightly reduced startup time
• Fixed a startup error on 1.19.4 Spigot servers
• Fixed a startup error on 1.15 servers
• Fixed armor toggling of 1.19.4 clients on older servers

1.19.4, better file size and performance!