From 053e4341a1f1fa05fc7df8c50fe5a07c7a1cb704 Mon Sep 17 00:00:00 2001 From: Nassim Jahnke Date: Fri, 3 Apr 2026 22:40:29 +0200 Subject: [PATCH 1/2] Start working on update post --- src/content/posts/26.1.mdx | 97 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 src/content/posts/26.1.mdx diff --git a/src/content/posts/26.1.mdx b/src/content/posts/26.1.mdx new file mode 100644 index 00000000..533b218f --- /dev/null +++ b/src/content/posts/26.1.mdx @@ -0,0 +1,97 @@ +--- +title: "26.1" +date: "2026-03-04T20:00:00Z" +author: "Paper Team" +--- + +## The 26.1 Update + + + +We would like to thank everyone that worked on this update: + + + +If you'd like to support PaperMC as a whole, you can find more information at https://papermc.io/sponsors. + +## Changes for server owners + +### World storage changes + +Vanilla changed the way world data and dimensions are stored. Paper previously inherited the decade-old Bukkit way of storing world data, which we finally changed to become closer to Vanilla (without losing features like per-world gamerules, spawn points, or other custom settings). This means the structure will look as follows now: + +``` +world/ +├── data/ +│ └── minecraft/ +│ ... +├── datapacks/ +├── dimensions/ +│ └── minecraft/ +│ ├── overworld/ +│ │ ├── data/ +│ │ │ ├── minecraft/ +│ │ │ │ ├── weather.dat +│ │ │ │ ├── ... +│ │ │ │ └── world_gen_settings.dat +│ │ │ └── paper/ +│ │ │ ├── level_overrides.dat +│ │ │ ├── metadata.dat +│ │ │ └── persistent_data_container.dat +│ │ ├── entities/ +│ │ ├── poi/ +│ │ ├── region/ +│ │ └── paper-world.yml +│ ├── the_nether/ +│ │ ├── data/... +│ │ ├── entities/ +│ │ ├── poi/ +│ │ ├── region/ +│ │ └── paper-world.yml +│ └── the_end/ +│ ├── data/... +│ ├── entities/ +│ ├── poi/ +│ ├── region/ +│ └── paper-world.yml +├── players/ +│ ├── advancements/ +│ ├── data/ +│ └── stats/ +└── level.dat + +Instead of being in separate folders in the server root directory, dimensions are split into separate folders in the `world/dimensions/` directory. Paper-specific data and overrides are stored properly in their own data directories. Per-world `paper-world.yml` files have been moved to the dimension folders, too. + +``` + +--- + +## For developers + +### Paper & Minecraft versioning changes + +[Mojang has changed their versioning scheme](https://www.minecraft.net/en-us/article/minecraft-new-version-numbering-system). Versions start with the current year, then the drop number within that year, possibly followed by patch and hotfix numbers; hence we got 26.1.1. + +We are also finally breaking with the long-lived tradition of having never-increasing `-R0.1-SNAPSHOT` versions and are moving to the following: `.build.-`, e.g.: `26.1.1.build.37-alpha`. +This much more clearly indicates the status of the build as well as an increasing build number. + +To get similar behavior to `SNAPSHOT` versions in your build configuration files, you can use `26.1.1.build.+` to have Gradle automatically resolve the latest build for that version. Please make sure to keep the `build` in there, otherwise a version like `26.1.+` would resolve to a possibly breaking version like `26.1.1`. + +### Unobfuscated server jars + +_This section only affects plugin devs using server internals, whether directly or through reflection._ + +Mojang is no longer providing obfuscated server jars and instead have them contain all class, method, field names, etc. Due to this, we have fully dropped the internal remapper - obfuscated names no longer exist in the server jar. +If you want to support versions of Minecraft still using obfuscation, you can use older versions of paperweight in separate modules. + +--- + + From 0092b0bf83b6b971e2f10d6b6b46170a6acbde5b Mon Sep 17 00:00:00 2001 From: Nassim Jahnke Date: Fri, 3 Apr 2026 23:19:44 +0200 Subject: [PATCH 2/2] fix --- src/content/posts/26.1.mdx | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/src/content/posts/26.1.mdx b/src/content/posts/26.1.mdx index 533b218f..49ed2596 100644 --- a/src/content/posts/26.1.mdx +++ b/src/content/posts/26.1.mdx @@ -68,10 +68,10 @@ world/ │ └── stats/ └── level.dat -Instead of being in separate folders in the server root directory, dimensions are split into separate folders in the `world/dimensions/` directory. Paper-specific data and overrides are stored properly in their own data directories. Per-world `paper-world.yml` files have been moved to the dimension folders, too. - ``` +Instead of being in separate folders in the server root directory, dimensions are split into separate folders in the `world/dimensions/` directory. Paper-specific data and overrides are stored properly in their own data directories. Per-world `paper-world.yml` files have been moved to the dimension folders, too. + --- ## For developers @@ -90,7 +90,6 @@ To get similar behavior to `SNAPSHOT` versions in your build configuration files _This section only affects plugin devs using server internals, whether directly or through reflection._ Mojang is no longer providing obfuscated server jars and instead have them contain all class, method, field names, etc. Due to this, we have fully dropped the internal remapper - obfuscated names no longer exist in the server jar. -If you want to support versions of Minecraft still using obfuscation, you can use older versions of paperweight in separate modules. ---