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# CodxLib 1.5.0 *This file is for **Forge 1.21.5**. Every loader ships the same CodxLib version, so the notes below apply here too.* **`/codxlib help` now also writes a `.mrpack`.** Drop that one file into the Modrinth App (**Add instance → From file**) and it rebuilds the instance the report came from: same Minecraft version, same loader, every mod it can find on Modrinth, the codx mods' settings, and a world on **the same seed**. "It crashes on my world" becomes a single attachment. - The world travels as settings, not terrain — only `level.dat`, so Minecraft regenerates from your seed. A few kilobytes, and nothing you have built is in it. - Mods that aren't on Modrinth (CurseForge-only, private, self-edited) are listed in the pack's `codxlib-debug/README.txt` to add by hand, never dropped silently. No jars are copied in. - **`/codxlib pack`** writes just the modpack. Same permissions as `/codxlib help`. **Developers:** new `CodxInstancePack.writeAsync(server)` and `CodxLib.gameDir()` / `IPlatformHelper#getGameDir()` — **a mod shipping its own `IPlatformHelper` must implement it.** Nothing else from 1.4.x changed; raise your range to `[1.5.0,)` only if you use the new API.