### Enable Spark Profiling Mixins

Source: https://github.com/embeddedt/modernfix/wiki/Profiling-game-launches

Configuration options to enable Spark profiling for game launch and world join within ModernFix.

```properties
mixin.feature.spark_profile_launch=true
mixin.feature.spark_profile_game_join=true
```

--------------------------------

### Enable Spark Profiling JVM Argument

Source: https://github.com/embeddedt/modernfix/wiki/Profiling-game-launches

JVM argument to allow Spark profiling when using ModernFix.

```bash
-Dmodernfix.allowSparkProfiling=true
```

--------------------------------

### Enable Dynamic Resources

Source: https://github.com/embeddedt/modernfix/wiki/Dynamic-Resources-FAQ

To enable dynamic resources, add the following line to your `config/modernfix-mixins.properties` file.

```properties
mixin.perf.dynamic_resources=true
```

--------------------------------

### Build ModernFix

Source: https://github.com/embeddedt/modernfix/blob/1.20/CONTRIBUTING.md

Commands to build the mod for all platforms or specific loaders.

```bash
./gradlew build
./gradlew forge:build
./gradlew fabric:build
```

--------------------------------

### Enable Beta Stability Level

Source: https://github.com/embeddedt/modernfix/wiki/Stability-Levels

JVM argument to enable Beta stability level features in ModernFix.

```text
-Dmodernfix.stabilityLevel=BETA
```

--------------------------------

### Debug JVM Option

Source: https://github.com/embeddedt/modernfix/wiki/Changelog

Enables Minecraft's built-in resource reload profiling for debugging.

```bash
-Dmodernfix.debugReloader=true
```

--------------------------------

### Upgrade Structures Command

Source: https://github.com/embeddedt/modernfix/wiki/Outdated-Structures

Command to have ModernFix load and validate every structure, generating an upgraded version if needed. This command will completely freeze the server while it runs.

```minecraft-commands
/modernfix upgradeStructures
```

--------------------------------

### Experimental Bytecode Analysis Option

Source: https://github.com/embeddedt/modernfix/wiki/Changelog

An experimental option to improve the efficiency of Forge capability lookups. This will be enabled by default in a future release if no issues are reported.

```properties
mixin.perf.faster_capabilities.bytecode_analysis
```

--------------------------------

### ModernFix Mixin Configuration

Source: https://github.com/embeddedt/modernfix/wiki/Ultra‐Low-Memory-Footprint

Configuration options for ModernFix to reduce memory usage.

```properties
mixin.feature.disable_unihex_font=true
mixin.perf.clear_fabric_mapping_tables=true
mixin.perf.clear_mixin_classinfo=true
mixin.perf.dynamic_resources=true
mixin.perf.remove_spawn_chunks=true
```

--------------------------------

### Experimental Stronghold Caching Option

Source: https://github.com/embeddedt/modernfix/wiki/Changelog

An option to fix a bug related to stronghold caching.

```properties
mixin.perf.cache_strongholds
```

--------------------------------

### Java 17 Arguments

Source: https://github.com/embeddedt/modernfix/wiki/1.16---required-arguments-for-Java-17

These arguments, in combination with ModernFix, should allow running most 1.16 mods on Java 17. Forge 36.2.41 and later can also run on Java 21.

```shell
-Djava.security.manager=allow -Dfile.encoding=UTF-8 --add-opens java.base/jdk.internal.loader=ALL-UNNAMED --add-opens java.base/java.net=ALL-UNNAMED --add-opens java.base/java.nio=ALL-UNNAMED --add-opens java.base/java.io=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.lang.reflect=ALL-UNNAMED --add-opens java.base/java.text=ALL-UNNAMED --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/jdk.internal.reflect=ALL-UNNAMED --add-opens java.base/sun.nio.ch=ALL-UNNAMED --add-opens jdk.naming.dns/com.sun.jndi.dns=ALL-UNNAMED,java.naming --add-opens java.desktop/sun.awt.image=ALL-UNNAMED --add-modules jdk.dynalink --add-opens jdk.dynalink/jdk.dynalink.beans=ALL-UNNAMED --add-modules java.sql.rowset --add-opens java.sql.rowset/javax.sql.rowset.serial=ALL-UNNAMED --add-exports java.base/sun.security.util=ALL-UNNAMED --add-opens java.base/java.util.jar=ALL-UNNAMED
```

--------------------------------

### Experimental Resource Caching Option

Source: https://github.com/embeddedt/modernfix/wiki/Changelog

An option to reduce the number of models kept permanently loaded.

```properties
mixin.perf.dynamic_resources
```

--------------------------------

### Experimental Chunk Unloading Option

Source: https://github.com/embeddedt/modernfix/wiki/Changelog

An option to eagerly unload chunks outside of render/simulation distance that are only needed for world generation.

```properties
mixin.perf.release_protochunks
```

--------------------------------

### New /modernfix mcfunctions Command

Source: https://github.com/embeddedt/modernfix/wiki/Changelog

A new command to identify which .mcfunction files are consuming the most tick time, useful for diagnosing laggy MCreator mods.

```minecraft
/modernfix mcfunctions
```

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