When Is Cobbleverse 1.8 Coming Out? Cobblemon 1.8.4 Server Guide

"When is Cobbleverse 1.8 coming out?" is the question your players keep asking, while Cobblemon itself has had four follow-up releases since September, one of which broke spawns. This guide covers where Cobbleverse stands, which modpacks already run Cobblemon 1.8.4, what went wrong in 1.8.3, which addons are ready and how to update safely. Pack versions and files were checked on Modrinth on 3 November 2026; release details come from Cobblemon's changelogs, release files and source code.

Quick answer: Cobbleverse 1.8 is not out and has no release date. On 3 November 2026 the newest Cobbleverse on Modrinth is still 1.7.42 from 21 July, with Cobblemon 1.7.3 inside, so a Cobbleverse server stays on 1.7.42 until the pack's own 1.8 version arrives. Cobblemon Delta 4.5.0, Cobblemon.gg 4.0.1 and the official Cobblemon modpacks already ship Cobblemon 1.8.4. Without a modpack, back up and update straight to 1.8.4, released on 27 October 2026 for Minecraft 1.21.1 on Fabric and NeoForge, and skip 1.8.3, which broke structure spawns.

When Will Cobbleverse Update to 1.8?

The pack's own pages give no date yet. On 3 November 2026 the Cobbleverse page on Modrinth lists 1.7.42 from 21 July 2026 as the newest version, and its description still reads "Based on Cobblemon 1.7.3". The changelog list on the team's own wiki also ends at 1.7.42, with no 1.8 entry.

The last jump was quick. Cobblemon 1.7.0 came out on 22 November 2025, and a Cobbleverse 1.7 beta followed on 30 November with "full compatibility with Cobblemon 1.7.1". This time Cobblemon 1.8.0 has been out for 58 days without a Cobbleverse build, so the old pace tells you little. New versions appear on the Modrinth page, which also links the team's Discord.

Cobblemon 1.8 Modpack Status on 3 November 2026

Each row comes from modrinth.index.json, the file list inside the pack's newest .mrpack on Modrinth, which names the exact Cobblemon jar the pack installs. Trust it over the description: Cobblemon Delta's page still says "This pack is on Cobblemon 1.7.3", while its files install 1.8.4.

All four run on Minecraft 1.21.1, and the NeoForge edition of the official modpack is on 1.8.4 too, with NeoForge 21.1.264. Delta moved to Cobblemon 1.8.0 in its 4.0.0 on 6 September, the day 1.8.0 came out, and Cobblemon.gg followed with 3.7 on 10 September. Both then went from 1.8.2 straight to 1.8.4 on 28 October (Delta 4.4.4, Cobblemon.gg 4.0), so neither pack ever shipped the broken 1.8.3.

What to do on your server in the meantime:

• Cobbleverse. Keep the server and every player on 1.7.42, since everyone needs the same pack version to connect. Do not swap Cobblemon 1.8.4 into the pack yourself: 1.7.42 bundles 186 projects and files built around Cobblemon 1.7.3, including the 1.7 builds of Mega Showdown, Cobbreeding and Radical Cobblemon Trainers, and their 1.8 builds are separate releases. When the 1.8 version arrives, Cobblemon's advancements reset and the new 1.8 structures only appear in new chunks, as on any server that updates.
• Cobblemon Delta or Cobblemon.gg. Update the server and every player to the newest pack version. Both packs come with their own public server: each adds it to your multiplayer list, and Delta's page lists its raids, gyms and GTS as features of play.cobblemondelta.com. A server you host yourself gets the files the pack marks for the server: 32 of Delta's 59 and 57 of Cobblemon.gg's 110, the rest are client-only. Cobblemon.gg's server files include Mega Showdown 1.3.3 and Cobbreeding 2.4.1. Delta's are Cobblemon plus libraries, maps, voice chat and performance mods, without either addon.
• Want 1.8 on a Cobbleverse world now? Another pack means a different mod list, so start a fresh world on it, or test the move on a copy of your world first.

Every Cobblemon 1.8 Release So Far

The dates come from the official changelogs, and all five releases run on Minecraft 1.21.1. Nothing newer is out on 3 November 2026: 1.8.4 is the newest file on Modrinth and the newest tag in Cobblemon's GitLab repository. The changelog on the development branch already has a 1.8.5 section, still without a date.

What Went Wrong in 1.8.3

The 1.8.4 changelog says it plainly: "Fixed heaps of spawns not working. This was caused by us missing something before release." The Cobblemon wiki names the cause as "the removal of structure spawn presets", and the release files show the details. In 1.8.3, many spawn entries that need a structure switched to new Cobblemon structure tags. Meowth's village spawns, which used #minecraft:village in 1.8.2, now point to #cobblemon:spawns/is_civilization. Every Alolan Meowth spawn, which used the illager_structures preset, now points to #cobblemon:spawns/is_illager_structure, which covers pillager outposts, witch huts and woodland mansions. The 1.8.3 jar contains none of those tag files. The 1.8.4 jar adds 17 of them, for structures such as villages, shipwrecks, Nether fortresses and Cobblemon's own ruins.

For your server that means:

• On 1.8.3, wild spawns that depend on one of those structures did not work.
• Updating the server and every player to 1.8.4 is the whole fix. Its changelog lists no new config options or game rules.
• If you run your own spawn datapack: 1.8.4 removes six structure presets, end_city, illager_structures, nether_structures, ocean_monument, ocean_ruins and pillager_outpost. A spawn file that still names one of them needs the new #cobblemon:spawns/ tags instead.

Other 1.8.3 changes that matter on a server, all still in 1.8.4:

• Predation. A new doPokemonPredation game rule, on by default, and a predationChance setting in config/cobblemon/main.json (default 0.05) control Pokémon that hunt a hated entity. /gamerule doPokemonPredation false turns it off.
• Datapack crash fix. Datapacks with item interaction evolutions that name no item no longer crash the world on load.
• Three more structures. Prehistoric Frozen Pond, Prehistoric Frozen Spike and Prehistoric Lush Den now generate, in new chunks only.
• NeoForge 21.1.195. The team moved to this build to get MixinExtras 0.5, and Cobblemon's mixin settings now ask for that version. Run NeoForge 21.1.195 or newer.

Which Addons Work With Cobblemon 1.8.4

Each sidemod needs its own 1.8 release. This is the state on 3 November 2026, taken from each mod's version list on Modrinth and the requirements inside its Fabric jar:

Two things to watch. Mega Showdown restarted its numbering for 1.8, and its version names read mod version, then Cobblemon version, then Minecraft version. So 1.9.9+1.7.3+1.21.1 from 5 September is the last build for Cobblemon 1.7.3, and 1.3.3+1.8.4+1.21.1 is the current one. Sort by date, not by number. Legendary Monuments has no release yet that names 1.8.3 or 1.8.4, so test its shrines on a copy of your world first.

For any other addon, open its version list and check which Cobblemon version the newest file names. If it only names 1.7, keep the server on 1.7.3 or drop that mod.

What the 1.8 Update Changes on Your Server

Coming from 1.7.3, these changes from the 1.8.0 changelog affect how you run the server:

• Advancements reset. Everything except the root advancement, picking your starter, resets for every player. Announce it before you update, or players will think the server lost their progress.
• New structures only in new chunks. The 49 habitats, 10 new ruins and the Magma Shipwreck Cove only generate in chunks that did not exist yet. Expand the world border, start a fresh world, or let players travel past the explored area.
• New config options. You can make TMs infinite-use, make every TM recipe available from the start, and turn off Pokémon spawning per world, handy for a lobby. awardExperienceToFaintedPokemon gives experience to fainted Pokémon that helped win, and awardExperienceOnBattleLoss still awards experience for defeated enemies after a loss or forfeit.
• New command. /givetm hands out TMs, useful for event rewards.
• Alphas add load. Alpha Pokémon are bigger and stronger, always know a TM move and always lead herds, so a busy evening means more Pokémon in loaded chunks. If your server already drops below 20 TPS at peak, fix that first with our Cobblemon server optimization guide.
• Performance and fixes. Berry trees and pasture blocks got faster on servers, the default pasture wander radius went down to 32 blocks, and a fix landed for pastured Pokémon running off.

How to Update Your Server to 1.8.4

1. Check your modpack and addons. On a modpack, update through the pack's own new version (see the status table), never jar by jar. On your own mod list, check every addon against the table above; if one has no 1.8 release, stay on 1.7.3 or remove it.
2. Make a full backup. Copy the world folder, the config folder and a list of the exact mod versions you run, so you can roll back in one go. On a Space-Node Minecraft server you make that backup yourself in the panel.
3. Match Java and the loader. Both 1.8.4 jars require Java 21. On Fabric you need Fabric Loader 0.17.2 and Fabric API 0.116.6+1.21.1 or newer; on NeoForge, build 21.1.195 or newer with Kotlin for Forge, or 21.1.214 or newer if you add Mega Showdown 1.3.3. Our Cobblemon server setup guide lists the versions the official modpacks use.
4. Go straight to 1.8.4. From 1.7.3 or any 1.8 release, install 1.8.4 directly. None of the 1.8 changelogs asks for a stop at an earlier version, and on 1.8.3 the new jar is the spawn fix.
5. Test on a copy. Start a copy of the world, check a few structure spawns, any shrines and the mounts your players use, and let a few players try it for an evening.
6. Update the server and every player together. Everyone needs the same Cobblemon version and the same loader. On a modpack, everyone moves to the same pack version.
7. Tell your players about the advancement reset if you come from 1.7, and where the new structures will appear.

On our Cobblemon server hosting, the panel's Modrinth and CurseForge installer sets up a Cobblemon modpack with one click, and the plans are sized by player count.

FAQ

When is Cobbleverse 1.8 coming out? Neither its Modrinth page nor the team's wiki gives a release date. As of 3 November 2026 the newest Cobbleverse is 1.7.42 from 21 July 2026, with Cobblemon 1.7.3 inside, and neither place mentions a 1.8 version. Check the Modrinth page or the team's Discord for news.

Which Cobblemon modpacks already run 1.8.4? On 3 November 2026, Cobblemon Delta 4.5.0, Cobblemon.gg 4.0.1 and the official Cobblemon modpacks for Fabric and NeoForge (version 1.8.4) all install Cobblemon 1.8.4, going by the file list inside each pack. Cobbleverse 1.7.42 still installs 1.7.3.

Can I go straight from Cobblemon 1.7.3 to 1.8.4? Yes. Every 1.8 release runs on Minecraft 1.21.1 with Java 21, the same as 1.7. Back up first, install 1.8.4 on the server and every client, and move each addon to its 1.8 build. None of the 1.8 changelogs asks for an in-between version.

Does 1.8 need a world reset? No, but the new structures only generate in unexplored chunks. A fresh world or a bigger world border shows the update best.

Does Cobblemon 1.8 add egg breeding? No. None of the changelogs from 1.8.0 to 1.8.4 adds breeding. The Cobbreeding addon adds eggs, and its 2.4.1 release needs Cobblemon 1.8.2 or newer. See our Cobblemon breeding guide.

How much RAM does a Cobblemon 1.8 server need? Plan on 8 GB for up to 10 players, 12 GB for 10 to 25 players or when you add sidemods, and 16 GB for public servers. Alpha herds add entities, so do not go lower. Details in our Cobblemon modpack requirements guide.

Sources

All opened on 3 November 2026:

• Modpacks on Modrinth, with the modrinth.index.json inside each newest file: Cobbleverse (1.7.42, 1.7), Cobblemon Delta (4.5.0, 4.4.4, 4.0.0), Cobblemon.gg (4.0.1, 4.0, 3.7), Cobblemon Official Modpack for Fabric 1.8.4 and for NeoForge 1.8.4
• Cobbleverse team wiki: changelogs and guides
• Cobblemon on Modrinth: all versions, 1.8.4 for Fabric and NeoForge, 1.8.3 for Fabric, with their changelogs and the requirements inside the jars
• Cobblemon wiki: 1.8.0, 1.8.3, 1.8.4
• Cobblemon on GitLab: changelog at 1.8.4, changes from 1.8.3 to 1.8.4, Meowth spawns at 1.8.3, structure spawn tags at 1.8.4, CobblemonConfig.kt, CobblemonGameRules.kt, mixins.cobblemon-common.json, development changelog
• NeoForge: 21.1.195 changelog
• Addons on Modrinth: Mega Showdown, Legendary Monuments, Cobbreeding, Radical Cobblemon Trainers