---
title: Changelog
layout: default
section: main
---

#### v2.7.0 2022-08-02

- Fix: Use a null prototype object for this.files (see [#824](https://github.com/Stuk/jszip/pull/824))
    + This change might break existing code if it uses prototype methods on the .files property of a zip object, for example zip.files.toString(). This approach is taken to prevent files in the zip overriding object methods that would exist on a normal object.

### v2.6.1 2016-07-28
- update pako to v1.0.2 to fix a DEFLATE bug (see [#322](https://github.com/Stuk/jszip/pull/322)).

### v2.6.0 2016-03-23
- publish `dist/` files in the npm package (see [#225](https://github.com/Stuk/jszip/pull/225)).
- update pako to v1.0.0 (see [#261](https://github.com/Stuk/jszip/pull/261)).
- add support of Array in JSZip#load (see [#252](https://github.com/Stuk/jszip/pull/252)).
- improve file name / comment encoding support (see [#211](https://github.com/Stuk/jszip/pull/211)).
- handle prepended data (see [#266](https://github.com/Stuk/jszip/pull/266)).
- improve platform coverage in tests (see [#233](https://github.com/Stuk/jszip/pull/233) and [#269](https://github.com/Stuk/jszip/pull/269)).

### v2.5.0 2015-03-10
- add support for custom mime-types (see [#199](https://github.com/Stuk/jszip/issues/199)).
- add an option to set the DEFLATE level (see [#201](https://github.com/Stuk/jszip/issues/201)).
- improve the error message with corrupted zip (see [#202](https://github.com/Stuk/jszip/issues/202)).
- add support for UNIX / DOS permissions (see [#200](https://github.com/Stuk/jszip/issues/200) and [#205](https://github.com/Stuk/jszip/issues/205)).

### v2.4.0 2014-07-24
- update pako to 0.2.5 (see [#156](https://github.com/Stuk/jszip/issues/156)).
- make JSZip work in a Firefox addon context (see [#151](https://github.com/Stuk/jszip/issues/151)).
- add an option (`createFolders`) to control the subfolder generation (see [#154](https://github.com/Stuk/jszip/issues/154)).
- allow `Buffer` polyfill in the browser (see [#139](https://github.com/Stuk/jszip/issues/139)).

### v2.3.0 2014-06-18
- don't generate subfolders (see [#130](https://github.com/Stuk/jszip/issues/130)).
- add comment support (see [#134](https://github.com/Stuk/jszip/issues/134)).
- on `ZipObject#options`, the attributes `date` and `dir` have been deprecated and are now on `ZipObject` (see [the upgrade guide](http://stuk.github.io/jszip/documentation/upgrade_guide.html)).
- on `ZipObject#options`, the attributes `base64` and `binary` have been deprecated (see [the upgrade guide](http://stuk.github.io/jszip/documentation/upgrade_guide.html)).
- deprecate internal functions exposed in the public API (see [#123](https://github.com/Stuk/jszip/issues/123)).
- improve UTF-8 support (see [#142](https://github.com/Stuk/jszip/issues/142)).

### v2.2.2, 2014-05-01
 - update pako to v0.2.1, fix an error when decompressing some files (see [#126](https://github.com/Stuk/jszip/issues/126)).

### v2.2.1, 2014-04-23
 - fix unreadable generated file on Windows 8 (see [#112](https://github.com/Stuk/jszip/issues/112)).
 - replace zlibjs with pako.

### v2.2.0, 2014-02-25
 - make the `new` operator optional before the `JSZip` constructor (see [#93](https://github.com/Stuk/jszip/pull/93)).
 - update zlibjs to v0.2.0.

### v2.1.1, 2014-02-13
 - use the npm package for zlib.js instead of the github url.

### v2.1.0, 2014-02-06
 - split the files and use Browserify to generate the final file (see [#74](https://github.com/Stuk/jszip/pull/74))
 - packaging change : instead of 4 files (jszip.js, jszip-load.js, jszip-inflate.js, jszip-deflate.js) we now have 2 files : dist/jszip.js and dist/jszip.min.js
 - add component/bower support
 - rename variable: 'byte' is a reserved word (see [#76](https://github.com/Stuk/jszip/pull/76))
 - add support for the unicode path extra field (see [#82](https://github.com/Stuk/jszip/pull/82))
 - ensure that the generated files have a header with the licenses (see [#80](https://github.com/Stuk/jszip/pull/80))

# v2.0.0, 2013-10-20

 - `JSZipBase64` has been renamed to `JSZip.base64`.
 - The `data` attribute on the object returned by `zip.file(name)` has been removed. Use `asText()`, `asBinary()`, `asUint8Array()`, `asArrayBuffer()` or `asNodeBuffer()`.

 - [Fix issue with Android browser](https://github.com/Stuk/jszip/pull/60)

 - The compression/decompression methods now give their input type with the `compressInputType` and `uncompressInputType` attributes.
 - Lazily decompress data when needed and [improve performance in general](https://github.com/Stuk/jszip/pull/56)
 - [Add support for `Buffer` in Node.js](https://github.com/Stuk/jszip/pull/57).
 - Package for CommonJS/npm.

### v1.0.1, 2013-03-04

 - Fixed an issue when generating a compressed zip file with empty files or folders, see #33.
 - With bad data (null or undefined), asText/asBinary/asUint8Array/asArrayBuffer methods now return an empty string, see #36.

# v1.0.0, 2013-02-14

- First release after a long period without version.
