# A Teaser to MufiZ v0.10.0

The next release of MufiZ, Echo release is planned to be released hopefully by October or November 2025, and with it comes many new features to the language, after lots of releases of mainly focusing on fixing up the language (well this brings more stuff to better optimize).

## Const Support

In this release we provide support to immutable variables in both global and local scopes through the `const` keyword, you can assign a variable to immutable instead of the mutable `var` keyword.

## Pairs Support

We introduce a new object called Pairs which act as a key-value pair which can either be directly created using the syntax `key => value` or can be collected from a Hash-Table using the `pairs()` function which can be iterated upon, further work will be looked at for further integration with the hash-table type.

## Switch Support

We are adding support for `switch` statements which are similar to a mix between C but instead of `:` we use `=>` as shown below:

```javascript
var a = 3;
print("Switch value: " + a);

switch(a){
    case 1 => { print("Entered case 1"); assert(a, 1); break;},
    case 2 => { print("Entered case 2"); assert(a, 2); break;},
    case 3 => { print("Entered case 3"); assert(a, 3); break;}
}
print("End of switch");
```

## Range Support

We are adding exclusive (`start..end`) and inclusive (`start..=end`) ranges support, further work is being done to ensure they work nicely with `foreach` loops and `switch` statements, and may not be fully stabilised until `v0.11.0`.

## Switch to Zig `v0.15.0` Toolchain

The new Zig release has come out and a lot of refactoring is being done to replace old code with the new `Io` type and it involves the networking functions to be rewritten as well. This is an exciting release, and we are happy to quickly adopt it to our language.