# ChangeLog: v1.3.91

* [CHANGELOG.md](https://github.com/swc-project/swc/blob/13161c45cd981b584e6d0bc3077ebe36154485e4/CHANGELOG.md#1391---2023-10-01)
    
* [Full ChangeLog](https://github.com/swc-project/swc/milestone/449?closed=1)
    

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# Experiment: `@swc/minifier`

We are experimenting with a smaller package, namely `@swc/minifier`. It only contains the code required for the minification of ECMAScript.

## `@swc/html` & `@swc/xml` (future)

We will publish our HTML / XML processing module as npm packages soon.

# Bugfixes

## TypeScript

* [https://github.com/swc-project/swc/pull/8029](https://github.com/swc-project/swc/pull/8029)
    
* [https://github.com/swc-project/swc/pull/8018](https://github.com/swc-project/swc/pull/8018)
    

These are continuous works to fix regressions caused by the implementation.

## ES Minifier

* [https://github.com/swc-project/swc/pull/8036](https://github.com/swc-project/swc/pull/8036)
    

## ES Transpiler

### Private field with optional chaining

* [https://github.com/swc-project/swc/pull/8031](https://github.com/swc-project/swc/pull/8031)
    

### Decorators

* [https://github.com/swc-project/swc/pull/8017](https://github.com/swc-project/swc/pull/8017)
    

### More conformance to ESM specification

* [https://github.com/swc-project/swc/pull/8024](https://github.com/swc-project/swc/pull/8024)