This implies that as minor versions increment, and even if additional "minor releases" feature new APIs, they must be fully backwards compatible with earlier minor versions of the API. For example, if a script module has a dependency on version 1.3.0 of the @minecraft/server API, it may actually have that dependency fulfilled with 1.8.0 of the @minecraft/server - and those script modules should continue to function as expected. For those familiar with NPM semantic versioning, this is similar to the ^ signifier within version dependencies.
API modules in the beta track are labeled with the "-beta" suffix - for example, 1.2.0-beta. Beta APIs do not follow the rules of semantic versioning. With beta APIs, no backwards compatibility is implied, and even minor version increments can include backwards-compatibility breaking changes like the removal of properties or methods. Moreover, with every major release of Minecraft, it is likely that several -beta modules will increment their version number (for example, from 1.2.0-beta to 1.3.0-beta) without having an automatic upgrade from the old -beta version to the next. As a consequence, you may need to update the version number of manifest.json dependencies at every major release if you are using -beta APIs.
For the definitive resource on APIs and types that are exposed in various versions, consider using the type definitions available through npm at npmjs.com. The @minecraft/server definitions contain different variants of type definitions for stable and beta tracks, as well as across both main and preview releases of Minecraft Bedrock Edition. See more on how to use these type definitions in this article
Now what you're going to do is to copy the contents of the World Downloader file into the minecraft.jar. Don't put it in any of the subdirectories, either. There are already a ton of .class files there... Just add a few more!
It's pretty much exactly the same, except that instead of finding the minecraft.jar file in %APPDATA%\.minecraft\bin, it will be in Library/Application Support/minecraft/bin.
I started playing Minecraft intensively when beta 1.3 came out. It was so much fun that I would play up to 8 hours non-stop and still find it hard to close the game! I continued playing after 1.3, but it was never quite the same.
When you press enter, you'll be taken to the appdata folder. You'll then need to double click on .minecraft, then bin. Now you'll see a list of files and folders. What we need to do is to create a copy of the minecraft.jar file and rename it to something like minecraft-backup.jar. 2b1af7f3a8