{"client_side":"optional","server_side":"optional","game_versions":["1.10","1.10.1","1.10.2","1.11","1.11.1","1.11.2","1.12","1.12.1","1.12.2","1.13","1.13.1","1.13.2","1.14","1.14.1","1.14.2","1.14.3","1.14.4","1.15","1.15.1","1.15.2","1.16","1.16.1","1.16.2","1.16.3","1.16.4","1.16.5","1.17","1.17.1","1.18","1.18.1","1.18.2","1.19","1.19.1","1.19.2","1.19.3","1.19.4","1.20","1.20.1","1.20.2","1.20.3","1.20.4","1.20.5","1.20.6","1.21","1.21.1","1.21.2","1.21.3","1.21.4","1.21.5","1.21.6","1.21.7","1.21.8","1.21.9","1.21.10","1.21.11","26.1","26.1.1","26.1.2","26.2","26.3"],"environment":["client_or_server"],"id":"NpvuJQoq","slug":"viabackwards","project_type":"mod","team":"ZnAFwlvJ","organization":null,"title":"ViaBackwards","description":"Allow older Java Edition clients to connect to newer servers.","body":"# ViaBackwards\n\n**On Fabric, use either [ViaFabric](https://modrinth.com/mod/viafabric) or [ViaFabricPlus](https://modrinth.com/mod/viafabricplus). To override the included version**\n- in **ViaFabric**, put ViaBackwards into the `mods` folder\n- in **ViaFabricPlus**, put ViaBackwards into the `ViaFabricPlus/jars` folder\n\n**Depending on the platform and version, this also requires [ViaVersion](https://modrinth.com/mod/viaversion).**\n\nRequires Java 17. See [here](https://docs.papermc.io/misc/java-install) how to update your installed Java version. As a last resort, you can download Java 8 downgraded builds from [our ci](https://ci.viaversion.com/view/ViaBackwards/job/ViaBackwards-Java8/).\n\n## Get access to Via* with new MC version support early\n**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**:\n- [GitHub Sponsors](https://github.com/sponsors/kennytv/sponsorships?sponsor=kennytv&tier_id=385613&preview=false) (*preferred option, also comes with source code access*. Use the `/verify` command on this Discord after), or alternatively\n- [Patreon](https://www.patreon.com/kennytv/membership) (see the highest tier and make sure to link Patreon to your Discord account under Discord Settings->Connections)\n\n## Note on release channels\nIt is recommended to always use the latest beta release. Alpha builds are used for work on snapshot version compatibility or other cutting-edge changes.\n\n**Always use the same build channel across the ViaVersion, ViaBackwards, and ViaRewind projects.**\n\nReleases/Dev Builds\n-\nYou can find releases in the following places:\n\n- **Hangar (for our plugins)**: https://hangar.papermc.io/ViaVersion/ViaBackwards\n- **Modrinth (for our mods)**: https://modrinth.com/mod/viabackwards\n- **GitHub**: https://github.com/ViaVersion/ViaBackwards/releases\n\nDev builds for **all** of our projects are on our Jenkins server:\n\n- **Jenkins**: https://ci.viaversion.com/view/ViaBackwards/\n\nKnown issues\n-\n\n* 1.17+ min_y and height world values that are not 0/256 **are not supported**. Clients older than\n  1.17 will not be able to see or interact with blocks below y=0 and above y=255\n* <1.17 clients on 1.17+ servers might experience inventory desyncs on certain inventory click actions\n* Sound mappings are incomplete ([see here](https://github.com/ViaVersion/ViaBackwards/issues/326))\n\nOther Links\n-\n**Maven:** https://repo.viaversion.com\n\n**List of contributors:** https://github.com/ViaVersion/ViaBackwards/graphs/contributors\n\nSpecial Thanks\n-\n![https://www.yourkit.com/](https://www.yourkit.com/images/yklogo.png)\n\n[YourKit](https://www.yourkit.com/) supports open source projects with innovative and intelligent tools\nfor monitoring and profiling Java and .NET applications.\nYourKit is the creator of [YourKit Java Profiler](https://www.yourkit.com/java/profiler/),\n[YourKit .NET Profiler](https://www.yourkit.com/.net/profiler/),\nand [YourKit YouMonitor](https://www.yourkit.com/youmonitor/).\n","body_url":null,"published":"2023-08-10T08:24:07.988560Z","updated":"2026-10-21T11:38:05.500902Z","approved":"2023-08-10T20:05:44.126439Z","queued":"2023-08-10T08:55:41.696555Z","status":"approved","requested_status":"approved","moderator_message":null,"license":{"id":"GPL-3.0-only","name":"GNU General Public License v3.0 only","url":"https://github.com/ViaVersion/ViaBackwards/blob/master/LICENSE"},"downloads":2323491,"followers":857,"categories":["utility"],"additional_categories":[],"loaders":["bungeecord","fabric","folia","paper","sponge","velocity"],"versions":["fd1x6MPo","5M3uPDEM","rxf6tN9x","thW2iOLi","TQMyHLct","fQHCj8bf","IO1h8sAr","mrea18DA","pLEmzm3R","kQklDeLj","KtROZF2P","dAsnU4qv","VfPuRcGx","rAjjScW3","Qkr98KwY","EfISRX5Y","1Vty4rlw","x7FBeyqH","lO6OxLQ3","4HRMeVtO","G5NnT5bp","F3Lcxplt","dMyrpTGa","xWt3yCv5","d41MwNfM","RkRohykX","G1yA5MVA","yjnk3oKh","xL5YLvcC","pDtiOe6f","NbT3CsoQ","6RnWSLps","7HzMCJA5","YqzA0UnO","GdNTLRFy","g5AQ5fwD","3g4yRTlh","KcPWDVhC","9rxpSQsy","GZXgPoUp","6G6ruYCM","Bvlgxo1N","UvACEJud","n869vT3r","9zKtygTL","nzDrBbFk","tktB1sZS","CAFZQBwl","HZymWnFH","lJHnsXUO","43w2U96o","OzNgFJaN","KEVPfina","YqZ0rywQ","lDTOgcUw","EXr8vLjx","rvzDkyO8","GAbf5QUO","K2ABi150","LTWhssGy","nLNUu1nq","lkq9RWDb","dRMYwfS7","wyzkfops","oNkZU76G","f0jm9Pzp","Tcc4BaJx","qaWhjniS","cR1Mz9Pu","gzCRzssZ","stkZYAgG","DmsXfwNp","YQUbYRIp","nB7Mluyl","1IJgmAA6","j0cdW43X","NqHz2sQu","NLHSkmts","1Xn2t3L9","2qjhG1Ni","FpFJcXFu","JKWHCmnG","T11JJJ6F","HBgxBHT9","izpsSQbR","OcHoQApp","Vu56gCEb","x5xUhIzt","fMc1KqxU","YktdZfVR","OEWFRRxG","JE2e1uqE","xT0BWkeL","Ms8C5OoE","SCv5dNTT","4Qnc5iVe","ZwqwsEMK","nnIudrKd","QSBcS1aj","3EEc7DME","g5PFg9mS","CH3oiY1S","6kKt3eO8","Kdc0AKjg","LCO2myva","tVJviXvP","1IFut6yD","kaqdJra2","AwNOjklg","Cs34iDRb","aGXP9qb8","1GT7riAB","AQEjjbyx","tgNH8P9C","XWdQUHFi","ZvunNwEx","yrKfdzVj","kX2bPjF5","q10uMj3m","WvNoI8Ct","WAzDj6no","1ECneg4h","gVDnENEf","MIUJiNot","MsnuCDle","jBA58JGY","ZQT2EkZN","UmFHioLO","mSJRMPuD","46vHCLic","jrMJ9aQV","6jPR8EP6","5lEYZcDu","Vz03UpLz","Y4Qeohpt","QysADh1s","59GUs9B1","ZnpobqGY","nWqNxXqw","AAIR5QtQ","EhJfN1ID","3J8rBEd4","c5CpW2D2","JZmRPJ2C","RoOO0vOX","oCiVDgwM","dTUpSXEp","FCTqcFq2","9gD1H3ek","DuoopFNV","6aF1KnQ3","oHP1ersv","eDsgbUeS","iN4Wfaan","cbKnn32S","smK3UfRI","TnuJGgid","MsuS4uXl","jek8EZ20","7A7VAFj6","k36WAcJB","Kym2whEc","B6bjEnwY","ZpDbftbW","ZGX95BRG","fLVXKI2b","LiLZuMNy","lfv9RWpL","ujD78p4a","6KQyJEuz","DUfm9vuF","fTqDb3UE","hXqwKcKJ","g8uuK2II","q2lbv1Kz","8WUho4p9","GXPdo9Ba","TeE0AIcT","LFbX8ZlL","61Qpf1wW","sq9Va3OM","yk9PGjdT","cC4Q7Wwr","mO3yE6jk","QFj6BdBm","MVUd4xd5","9zEaJqZw","ZcOtkPjT","zXqWDc20","wVo8klb1","iAoQxSKW","FmCRkuLD","L6W39IXY","Ff4rcbvl","8phImOKw","D43U9Xtk","rF1U18cc","UnYEP2Cj","yLxs0WXm","UvQAyoyd","k0BemufZ","bDdYyDoS","jFRrBfmz","dsXdhkBv","LLabiuGz","zIUuW2NT","b0AFeWUx","HqNNsA7E","MLpczUIu","fmZ67UhK","Ac15Spfa","4pzZX6yU","8EwXRiPi","TEyRxs8l","3mUizX4U","QciqDMSs","a7eqNX1O","zhI4j4fo","U7qVkEvg","UAAxbJRz","fe4FjxDr","3StMT1of","n31eCxZO","hbIrGWuq","9emFKffU","joGd2Jz9","KtBrvlzN","31TlZZ2K","jkeTIyVk","Zh2JjzBW","7qhwvqOI","FRdGRxxn","KTUuE0Bx","6Hv0NyUB","WDtvkDJa","PlPRyvYy","T9cxwPQ7","qINlc5qX","wPyUCgR8","QddzLbiq","HP0St2QS","1fu3wxn7","Z0N9V8iM","4uJGESIZ","6RPBOQXC","lBQozDsd","NAyFxxBU","KoqyXygm","ZL2O4kC0","TBcy8XRw","nC3rGFEx","rPlQ7EIB","SoJvI4ZA","LRFtpdvW","vyZUlozZ","LSyQIfB7","YXS4DKXc","DdnZp2Ma","pjEqSZ29","W0K3b9ia","pZezCXnz","9hT6QlpI","mj50HzuH","u29SeG7j","cnJOvgov","cLPMB3MY","jWa1fRqK","JLa3pOg5","RrgjkFTE","oehQkL72","E1LYBU7S","fytGxXmZ","lyJ6xJaP","CvLK6mmD","vM0O3rrD","MIDp3PVz","zljfwWdU","pK3qIkFl","ikT0gC8Y","pCqWcB5G","Kn9W09hI","eJiMAXgA","ij58zMfZ","oat6gULN","LShQkNSA","8HJTexeh","lEoG0v8C","xrtgdq8X","l8Qjfvep","P8jwgLut","WfzWTKTE","LGHFtjoL","bNFQPnQb","fjE8jzOW","mPT09Loo","yBRcX4L2","CCmVl30w","KQQMaFsa","QU0O2va4","CqFmD07u","v1GHEMTd","LUmqGg6Y","H3SPEf0f","XhxQmzEW","BtASHGWM","b6iLeK9m","R2caz743","CHiumy4z","8lbWQegV","zoVIpmI5","SPrE8VVb","NL1wGvRn","Zo6ovKPh","D0cC3UDF","WGN7s8Do","tid8v882","wsjoMVaY","5T7UkZpZ","5i9YVjrv","j0CT3uXK","PqccWEIp","wjmli6aG","EHCglmXL","h6oxCemf","X788SUH6","kwAAl5BS","Vz2sryhV","vdbm8Kkj","M5VzwDlW","CGDa3prY","Gr9IoswU","rtmgheCA","DesGrNkM","5vweIKOz","krmndSNQ","C3g2yVy8","6eJjhwV6","ZMRXhmgQ","SRytgDgN","mN4raPpy","oEgmoGmm","H28iNR9D","QI6on5O0","eMvFeqZt","EgetVcfc","MBpIPX4i","Xdg271Gn","A4ZAoekM","cev5Mlvr","6APwVLr1","5GEiT6dl","gwOS2u0n","APWFE2rR","k1pk0ORN","cQfwR8Kg","bprnc7WS","De6QHykA","Z0pQZuRn","EHGjmLCu","k3HLOUAm","Mwgs3g8j","hShraEyC","DwaFIGVI","li7AT8KA","YKcTefyS","9XZceJaH","XzkPhW55","Dy6Bgt7W","j6iOCThY","Z5r3xT5I","WTffXr11","pK2rjTtC","shJOZpcz","lepgR3Uo","ttbfKmTp","Ykergnbu","SdMpxRvO","eXuhYHxL","Mlh98dwp","E55FmqxJ","V3NUcO42","pbPgntHX","cuDXYAU7","Qw9HoMKQ","YTwKUGgm","tqSUsUQv","pOmoTMig","FWfRbMg0","iOJVZhW7","HzgwCKHZ","JqQsdlx2","5MIHZxUy","4yhK99Zm","3C2ptfp6","c6wU4kV7","ZcJfiKcO","CfFlomsx","d1TxivDS","3PFUelOn","bfVaDhZo","De0L5LYq","8glv9cBa","Wkxv8juz","KO2EZ9BJ","ZrVBSfkk","dtrTeZLl","jZsA8Y2U","VsP0lkzL","E8K2Ufo2","qecsg1Fc","ICVQ221Z","38CZdREp","o4Lq5Mz9","ZUTBvUAI","aWZN3MnL","GGyfSp1H","wx0s7Oix","6tpgm2Vm","5XiFO5wj","n7YQGght","cx55LXGL","jrVxUkQ8","2njhH2yF","T26s33Yi","2yubMJhd","qwaaaSfp","nCAVxHA6","Wtp1urWj","EaNkLlbu","2pOVwa6p","6kug7pdJ","2uTvV1C9",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