Resourceloader 2.5.2 ### Runs on Minecraft 1.13 through 26.3 again Since 2.3, Resourceloader refused to load on anything older than 1.21, and every version needed Java 17 (which most 1.13–1.16 servers don't run), even though older versions were listed. 2.5.2 runs on **every version from 1.13 to 26.3, on the Java version that server already uses (Java 8 or newer)**. It was tested end to end (loading, autoload, enforcement, URL packs, merging, the merge GUI, `/checkpack`, languages) on Paper 1.13.2, 1.14.4, 1.15.2, 1.16.5, 1.17.1, 1.18.2, 1.19.4, 1.20.2, 1.20.4, 1.20.6, 1.21.4, 1.21.11 and 26.3. What depends on the server version: - **1.18+:** under enforcement, the pack prompt shows the pack as required. - **Before 1.20.2:** `/mergepack` writes the server's own pack format into the merged pack, since clients that old only read `pack_format`. Players there don't get an "incompatible" warning. - **1.20.3+:** packs have ids, so a pack added by `/autoload` in `use-server-properties` mode stacks on top of the server.properties pack. On older versions it replaces it, because clients before 1.20.3 hold one server pack at a time.

Resourceloader 2.5.1 ### Fixes - **Players are no longer kicked for declining or failing an optional pack.** With enforcement off (the default), declining a pack sent by `/load`, or failing to download it, kicked the player, and operators with `resourceloader.bypass` were kicked as well. Kicks now only happen when `enforcement.enabled` is on, and only for the pack enforced on join. A pack a player picks later can be declined freely. - **Packs copied into the `packs` folder while the server was off are now detected** on startup and on `/resourcereload`. Before, only packs added while the server was running got registered. Files that aren't valid zips are skipped with a warning. Custom `storage.resource-pack-directory` folders are now watched too. - **Merged packs work on 1.21.9+ and 26.x.** `/mergepack` never actually saved the updated `pack.mcmeta` into the zip, and its version table stopped at 1.21, so 26.x clients saw merged packs as incompatible. Merged packs now declare a format range covering every input pack and the server's own version, in the layout newer clients require (`min_format`/`max_format`, plus `supported_formats` for older ones). - **Merge priority with 3+ packs:** a file from a middle pack could be overridden by the first pack. Later packs now always win. - **Merging no longer drops content from lower packs:** language strings, texture atlas sources and `sounds.json` entries are combined the way the game combines stacked packs. Models are no longer broken by gluing together elements from different packs. - **`/autoload` now works with URL packs** (it used to do nothing), matches pack names case-insensitively, and players with bypass still get their own autoload pack on join. - **Enforcement:** the enforced pack is now sent as required. `enforcement.restrict` (blocking `/tp`, `/home`, `/spawn`… and interactions until the pack has loaded) now works. An autoload preference pointing at a removed pack no longer lets a player skip the enforced pack. - **URL packs:** if the pack's host is down, the cached copy is used instead of failing. Unchanged packs are no longer re-downloaded after a restart. An interrupted download no longer leaves a broken cached file. `cache.enabled: false` no longer breaks URL packs. - **`enforcement.use-server-properties`:** `/autoload` preferences now apply on join, and a preferred pack is added on top of the server.properties pack instead of replacing it. - **`/checkpack`:** accepts 1.21.9+/26.x packs that use `min_format`/`max_format`, flags the same `pack.mcmeta` mistakes the game refuses to load, warns when a pack's version doesn't match the server, stops reporting vanilla textures as missing, and no longer shows "successful" next to critical issues. - **Merge GUI:** selected packs now show "✓ Selected", and clicking items in your own inventory no longer triggers the Merge/Cancel buttons. - `/mergepack` output names are cleaned up, so a name can no longer write outside the packs folder. - A warning is logged at startup when `server.address` is empty and the detected address is a loopback or Docker one, the usual reason pack downloads fail on Docker/Pterodactyl hosts. - Packs are no longer re-hashed on every send, which cuts join lag with large packs. - `/load` with a URL pack shows "Loading…" once instead of twice.

Resourceloader 2.5 ### Fixes - **Misplaced pack entries are repaired automatically** (#11). Pack entries written at the top level of `config.yml` instead of under `resource-packs:` used to be silently ignored, so `/load` and `/packlist` showed nothing. They are now moved into `resource-packs` on startup and `/resourcereload` (a backup is saved as `config.yml.pre-repair.bak`) and the correct layout is explained in the log. - Warns when enforcement is enabled but `server-pack` is empty. - Missing-pack warnings now show the full path the file was expected at. - `/load` matches pack names case-insensitively. - `/removepack` no longer errors when `resource-packs` is missing. - `/checkpack` honours a custom `storage.resource-pack-directory`. - Fixed messages with more than one placeholder being corrupted. ### Translations - New `language` option in `config.yml`: `en`, `ru`, `tr`, `ko`, `zh` (locale-style values like `ru_RU` or `zh-CN` also work). Translations are extracted to `lang/messages_<code>.yml` and fall back to English for any missing key. - All chat, help, version-check, `/removepack`, `/checkpack` and merge GUI text is now in `messages.yml`, so every message can be customised. - Added the missing `kick.declined` and `enforcement.restricted-command` message keys.

Added startup and reload config migration for bundled YAML files that preserves existing server values and creates backups. Improved custom pack directory handling, URL encoding, async pack hashing, resource-pack server safety, and enforcement config key usage.

* Fixed config reading issues * Improved logging * Improved merged pack integrity

### Resource Pack Validation System - Added `/checkpack <packname>` command for comprehensive pack validation - Validates pack structure, JSON files, and texture references - Checks pack.mcmeta format and compatibility with server version - Provides detailed error reports and warnings - Supports both local and URL-based pack validation ### Performance Optimizations - Implemented SHA1 hash caching system to prevent redundant downloads - Added automatic cache cleanup with configurable retention periods - Optimized pack serving with reduced memory footprint - Enhanced file system event batching to reduce server load ### Improved Pack Merging - Enhanced JSON merging with intelligent handling of model files and blockstates - Automatic pack format detection and compatibility adjustment - Better conflict resolution for duplicate textures and assets - Improved metadata preservation during merge operations ### File System Operations - Resolved recursive renaming loops and duplicate notifications - Fixed file watcher to properly batch events and prevent spam - Added processing locks and delays to handle rapid file system changes - Improved file operation error handling and recovery ### Monitoring and Statistics - Added pack usage tracking and performance metrics - Implemented player preference history with configurable limits - Enhanced cache statistics and monitoring capabilities - Improved validation result reporting with formatted output ### Security and Stability - Added input sanitization for pack names and file paths - Enhanced permission validation throughout command execution - Implemented safer file operations with atomic writes where possible - Improved configuration protection against corruption

- Fixed `/autoload` - Added functionality for utilizing `server.properties` to load resource pack before player joins - Added customizable resource pack folder path - Allowed auto-detection to be toggle-able - Fixed bugs in messages - Added new `messages.yml` - Made resource pack merging more efficient and space conscious - Made resource pack loading smoother and more dynamic

Recompiled with Java 17 instead of 23.

## New Features 1. **Resource Pack Enforcement** - Server owners can now require players to use resource packs - Players can be kicked or restricted if they decline the pack - Admins can give special players permission to bypass this requirement - Better messages when packs are loading, accepted, or fail 2. **Smart Caching System** - Resource packs now load much faster for returning players - Server automatically cleans up old cached packs - Less bandwidth usage for both server and players - Better handling of connection issues 3. **Performance Improvements** - Much faster resource pack loading - Better handling of large packs - Reduced server resource usage - Smoother experience when switching packs ## Quality of Life Updates - Better error messages when something goes wrong - Clearer feedback when loading packs - More reliable pack merging - Updated for latest Minecraft version ## For Server Admins New configuration options in `config.yml`: ```yaml enforcement: enabled: false # Turn on/off required resource packs action: kick # What happens when players decline (kick or restrict) decline-message: "You must accept the resource pack!" ``` ```yaml cache: enabled: true # Turn on/off pack caching days: 7 # How long to keep cached packs auto-cleanup: true # Automatically remove old cache ```

## /mergepack added Users can now merge multiple resource packs on their server into a single pack right in their server itself!