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Mineforgian

ViaBackwards

Allow older Java Edition clients to connect to newer servers.

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1.6M
Подписчики
776
Обновлён
8 июля 2026 г.
Лицензия
GPL-3.0-only

Опубликован 10 августа 2023 г.

Исходный кодСообщить об ошибке

ViaBackwards

On Fabric, use either ViaFabric or ViaFabricPlus. To override the included version

  • in ViaFabric, put ViaBackwards into the mods folder
  • in ViaFabricPlus, put ViaBackwards into the ViaFabricPlus/jars folder

Depending on the platform and version, this also requires ViaVersion.

Requires Java 17. See here how to update your installed Java version. As a last resort, you can download Java 8 downgraded builds from our ci.

Get access to Via* with new MC version support early

Starting with 1.20.5, ViaVersion and ViaBackwards will only be released a day 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, also comes with source code access. 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 Discord Settings->Connections)

Note on release channels

It is recommended to always use the latest beta release. Alpha builds are used for work on snapshot version compatibility or other cutting-edge changes.

Always use the same build channel across the ViaVersion, ViaBackwards, and ViaRewind projects.

Releases/Dev Builds

You can find releases in the following places:

Dev builds for all of our projects are on our Jenkins server:

Known issues

  • 1.17+ min_y and height world values that are not 0/256 are not supported. Clients older than 1.17 will not be able to see or interact with blocks below y=0 and above y=255
  • <1.17 clients on 1.17+ servers might experience inventory desyncs on certain inventory click actions
  • Sound mappings are incomplete (see here)

Other Links

Maven: https://repo.viaversion.com

List of contributors: https://github.com/ViaVersion/ViaBackwards/graphs/contributors

Special Thanks

https://www.yourkit.com/

YourKit supports open source projects with innovative and intelligent tools for monitoring and profiling Java and .NET applications. YourKit is the creator of YourKit Java Profiler, YourKit .NET Profiler, and YourKit YouMonitor.

Ченджлог

5.10.1-SNAPSHOT+607Бета26.1.1, 26.1.2, 26.2 · 8 июля 2026 г.

d975df4 Fix creative mode clear action in 1.21.2->1.21 Fixes #940

5.10.1-SNAPSHOT+606Бета26.1.1, 26.1.2, 26.2 · 8 июля 2026 г.

206a5b4 Pass new item and entity names as translatable This removes the itemnames and entitynames sections from mapping data and instead allows for easier changes via resource packs.

For 1.20.5+ clients, entities use the vb.entity.<type> translate key; items use vg.item.<type>. The old-style string (e.g. "26.2 Sulfur" is added into the fallback field).

For clients below 1.20.5, the old style string is put directly into the translate field.

5.10.1-SNAPSHOT+605Бета26.1.1, 26.1.2, 26.2 · 8 июля 2026 г.

9e8a958 Add item names as translate components instead Fixes #659

5.10.1-SNAPSHOT+604Бета26.1.1, 26.1.2, 26.2 · 8 июля 2026 г.

4e0618b Remove new environment attributes from registry data Fixes #1292

5.10.1-SNAPSHOT+603Бета26.1.1, 26.1.2, 26.2 · 8 июля 2026 г.

d6a3338 Always map to unpowered_comparator in 1.13->1.12 The powered_comparator block goes unused, the state is instead in the powered property Fixes #1222 Properly fixes #524

5.10.1-SNAPSHOT+602Бета26.1.1, 26.1.2, 26.2 · 7 июля 2026 г.

df630e8 Scale new baby mobs down on older clients (#1268)

Co-authored-by: Nassim Jahnke [email protected]

5.10.1-SNAPSHOT+601Бета26.1.1, 26.1.2, 26.2 · 6 июля 2026 г.

e1802a4 Fix sulfur caves legacy mapping

5.10.1-SNAPSHOT+600Бета26.1.1, 26.1.2, 26.2 · 5 июля 2026 г.

0bd189c Update damage event entity id types in 1.19.4->.3 (#1291)

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