The 1.21.9/10 Update As always, backups are absolutely mandatory. After upgrading your world to 1.21.10, you cannot downgrade back to a lower version! We would like to thank everyone that worked on this update: @jmp - https://github.com/sponsors/jpenilla @Lulu13022002 @lynxplay @Spottedleaf - https://www.patreon.com/Spottedleaf @Owen1212055 - https://github.com/sponsors/Owen1212055 If you'd like to support PaperMC as a whole, you can find more information at https://papermc.io/sponsors. Refining the Upda...

The 1.21.5 / 1.21.6 / 1.21.7 Update It's been a hot minute since the last post, but here we are! As always, backups are absolutely mandatory. After upgrading your world to 1.21.7, you cannot downgrade back to a lower version! We can also give you a pinky promise that it won't take this long to exit the experimental phase again, and we have already addressed this inflexibility in build channels — more on that below and on our Discord. We would like to thank everyone that worked on this update: Gerrygames ...

After the release of the first builds for Minecraft 1.21.4, we are happy to share some even more exciting news with everyone. Following the successful rollout of our Mojang-mapped server in 1.20.5, we are taking a big next step for the project: Hard fork from our upstream Since the project's inception, Paper has been built on top of Spigot, consistently staying up-to-date with features introduced to it. Today, Paper applies nearly 1600 additional patches with more than 130,000 lines of code over Spigot. ...

The 1.21.3 Update Paper and Velocity 1.21.3 builds are out of the experimental phase! As always, backups are absolutely mandatory. After upgrading your world to 1.21.3, you cannot downgrade back to a lower version! We would like to thank everyone that worked on this update: Gerrygames for his work on Velocity @electronicboy @jmp kennytv Lulu13022002 @lynxplay @Machine Maker @Noah @Owen1212055 SpaceWalkerRS @Spottedleaf If you'd like to support PaperMC as a whole, you can find more information at https://...

The 1.21 Update Stable Paper and Velocity 1.21 builds have been released! As always, backups are absolutely mandatory. After upgrading your world to 1.21, you cannot downgrade back to a lower version! We would like to thank everyone that worked on this update: 4drian3d and Gerrygames for their work on Velocity @electronicboy @jmp @kennytv @lynxplay Lulu13022002 @Machine Maker Ollie for his work on our docs @Spottedleaf @Owen1212055 and finally tal5, Dawon, yannicklamprecht and Doc94 for additional help! ...

The 1.20.5/6 Update Stable Paper and Velocity 1.20.6 builds have been released! As always, backups are absolutely mandatory. *After upgrading your world to 1.20.6, *you cannot downgrade back to a lower version!\\ The reason for the stable announcement arriving so late is that upstream's item handling has shown to be incredibly broken after the 1.20.5 changes to items. Unfortunately, there still remain a good number of smaller issues with ItemMeta API<->vanilla conversion, but at this point we shoul...

Announcing the end of life of Waterfall As many of you might have noticed, Waterfall hasn't received much love from our team and the great contributor community in the past years. We have also seen less and less traffic in the support channels on Discord. Additionally, Mojang is making huge investments into the core engine of the game which results in big and complicated changes to the inner workings of the game. While these changes are very welcome and we have been pushing for some of them for years, th...

Future removal of CB package relocation + moving away from obfuscation at runtime If you are not a developer but a server owner, this might still be important for you. Check the bottom section on what action you might have to take. Update: This change has been put into effect in 1.20.5, make sure you test with the latest Paper 1.20.5 builds. As already announced before, at some point in the foreseeable future, we will remove the CraftBukkit package relocation (e.g. v1_20_R3). This may be as soon as 1.20....

Happy New Year from PaperMC! Wishing you all a super happy New Year! It's been a big year at Paper! We've grown a lot and have some big changes on the horizon. Our team has yet again increased in size and become even more motivated to work towards our goal of hard forking. PaperMC is powered by the contributions from everyone, and we have made it our priority that new contributions are getting out there as soon as possible. And through that, we have seen some new faces pop up and contribute more often. T...

The 1.20.4 Update Stable Paper and Velocity 1.20.4 builds have been released! As always, backups are absolutely mandatory. After upgrading your world to 1.20.4, you cannot downgrade back to a lower version! We would like to thank everyone that worked on this update (a lot of people and work needed for a minor update, once again): Gerrygames, pkt77, and electroniccat for their work on Velocity @Machine Maker @lynxplay @jmp Lulu13022002 @Owen1212055 @Spottedleaf @kennytv If you'd like to support PaperMC as...

The 1.20.2 Update Stable Paper and Velocity 1.20.2 builds have been released! As always, backups are absolutely mandatory. After upgrading your world to 1.20.2, you cannot downgrade back to a lower version! We would like to thank everyone that worked on this update (a lot of people and work needed for a minor update!): Paul19988, Redned235, and Gerrygames for their work on Velocity @Machine Maker @Noah @lynxplay @jmp Lulu13022002 @MiniDigger @Owen1212055 @Spottedleaf @kennytv If you'd like to support Pap...

The 1.20(.1) Update We’re happy to announce that initial builds for Paper 1.20 have been released. As always, backups are absolutely mandatory. After upgrading your world to 1.20, you cannot downgrade back to a lower version! We would like to thank everyone that worked on this update: @Machine Maker @Spottedleaf @Owen1212055 @lynxplay @Noah @kennytv Next to those people, you can find links to support them individually. If you'd like to support PaperMC as a whole, you can find more information at https://...

Once again, we have another exciting announcement for you, this time about PaperMC's own site for uploading and downloading Paper, Velocity, and Waterfall plugins, called Hangar! The main reason we started working on this is to finally provide a centralized place for Paper and Velocity plugins. Compared to the Spigot forums, Hangar allows you much more control over your resource in terms of: adding other authors to your project, creating organizations with projects under them, managing roles per project ...

The 1.19.4 Update Paper 1.19.4 and Velocity with 1.19.4 support are now available on our website! As always, we recommend that you make a backup of your server before upgrading. Remember that you cannot downgrade your Paper server after doing the update. Despite only being a minor version, once again, quite a bit of work has gone in the update. We would like to thank the following people for their work on the update process: @kennytv @Machine Maker @Owen1212055 Gerrygames (for help with Velocity) Experim...

The 1.19.3 Update Paper 1.19.3 and Velocity with 1.19.3 support are now available on our website! Even though Paper is deemed stable, we still recommend that you make a backup of your server before upgrading. Remember that you cannot downgrade your Paper server after doing the update. Despite only being a minor version, quite a bit of work has gone in the update. We would like to thank the following people for their work on the update process: @kennytv @Machine Maker @Owen1212055 @Noah @jmp FiXed (for hi...

PaperMC participates in DigitalOcean's Hacktoberfest event. We accept meaningful contributions to almost all of our projects - just make sure the repository has the hacktoberfest topic set! You can use a query like this to show all of our repositories that have the topic added. We love getting contributions to Paper, but we'd also love some attention for our documentation (a great way to contribute if you are not that familiar with Java!) If you want to contribute to any of our repositories that don't ha...

We've seen a lot of reports of a new malware going around Minecraft servers. It seems to be spread by compromised Spigot plugin-author accounts, and is somewhat difficult to detect. We do know that the following exception is caused by it: java.net.NoRouteToHostException: No route to host If you see this in your logs, that server is most likely infected. There are other indicators too - the compromised JAR will have inside of it a file called plugin-config.bin. We do have a one-liner for searching for thi...

The 1.19.1 Update We are excited to announce that Paper 1.19.1 is now available! As far as we know, it is in a good state for production use - however, it is still early in the release cycle and new bugs may be discovered at any time, so we recommend that you make a backup of your server before upgrading. Chat Signing and Reporting Concerns We have received a great deal of concern regarding our stance and support for the new chat signing aspect of Minecraft. As such, we figure it best to clear up a few p...

The 1.19 Update We’re happy to announce that initial builds for Paper 1.19 have been released. We were able to fix a lot of issues already, but there might still be breaking ones, so as always, backups are absolutely mandatory. After upgrading your world to 1.19, you cannot downgrade back to a lower version! We would like to thank everyone that worked on this update. Not only the people actually working on the code, but everyone that provided feedback, helped us test, has been patient, and the people tha...

The 1.18.2 Update We are now releasing initial builds for 1.18.2. These have been tested by our team over the last few days and we were able to iron out quite a few issues, but you should still be careful. These are early builds, they may contain breaking issues, backups are absolutely mandatory! After you update, you cannot downgrade your world back to 1.18.1 or lower again! As always, we would like to thank everybody who contributed to this update, be it by contributing code, reporting issues or just d...

The 1.18 update After the initial release a bit over a month ago, Paper 1.18.1 is now deemed ready for use in production environments. As with any upgrade, please ensure you have a functioning backup before proceeding. World downgrades are not supported under any circumstances. Upgrading worlds to 1.18 With the increased world height that 1.18 brought, Mojang has introduced retrogen to allow worlds using the old (0 to 256) height to upgrade cleanly to the new (-64 to 320) height. Retrogen will fill in ne...

Welcome to PaperMC! Paper: This is our Minecraft server software. It's designed to be fast, bug-free, and a breeze to use. With an extensive API for plugin developers to boot, we work hard on Paper and we're proud of it. Velocity: A recent addition to the PaperMC community, Velocity is the most modern, secure, and highly performant proxy for Minecraft servers out there. Waterfall: A BungeeCord-compatible Minecraft server proxy that might not be quite as fast as Velocity, but is fully supported and fully ...