# ZXing changelog

> The barcode and QR code library for Java and Android — decoding and generation.

- Vendor: ZXing
- Category: Frameworks & Libraries
- Official site: https://github.com/zxing/zxing
- Tracked by: What's New (https://whatsnew.fyi/product/zxing)
- Harvested from: GitHub (zxing/zxing)
- Entries below: 17 (newest first)

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

## Releases

### 3.5.4 — ZXing 3.5.4

- Date: 2025-11-11
- Version: 3.5.4
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.5.4
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.5.4

##### What's Changed
* Fix container inefficiency in RSSExpandedReader.java by @cinsttool in https://github.com/zxing/zxing/pull/1782
* Fix SYMBOLOGY_IDENTIFIER Loss in QRCodeMultiReader to Ensure Data Integrity and Functional Consistency with QRCodeReader by @xiebaiyuan in https://github.com/zxing/zxing/pull/1839
* Be more stringent on email validation rules by @ftiercelin in https://github.com/zxing/zxing/pull/1870
* PDF417: Check that input is made of 0...127 chars when using Compaction.TEXT, throw an explicit exception if not the case by @ftiercelin in https://github.com/zxing/zxing/pull/1878
* Fixing issue #1831 by @ftiercelin in https://github.com/zxing/zxing/pull/1879
* Add hint to correct wrong dimension by @magethle in https://github.com/zxing/zxing/pull/1901
* Fix distortion calculation for isosceles right triangles by @magethle in https://github.com/zxing/zxing/pull/1908
* Add input validation for pixel array length in RGBLuminanceSource to avoid ArrayIndexOutOfBoundsException by @leofernandesmo in https://github.com/zxing/zxing/pull/1961
* Add 90-degree rotation support to RGBLuminanceSource by @gredler in https://github.com/zxing/zxing/pull/2012
* Add GrayscaleLuminanceSource by @gredler in https://github.com/zxing/zxing/pull/2013
* Loosen ITF max variance for 3x module widths by @gredler in https://github.com/zxing/zxing/pull/2014

**Full Changelog**: https://github.com/zxing/zxing/compare/zxing-3.5.3...zxing-3.5.4

### 3.5.3 — ZXing 3.5.3

- Date: 2024-01-31
- Version: 3.5.3
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.5.3
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.5.3

##### What's Changed
* Fix MaxiCode handling of vertical quiet zone by @gredler in https://github.com/zxing/zxing/pull/1671
* Removing the forced content limit check for Code128Writer.java by @himanshushukla254 in https://github.com/zxing/zxing/pull/1675
* Detect RSS Expanded finder pattern false positives by checking sequences by @gredler in https://github.com/zxing/zxing/pull/1680
* Update GS1 AIs according to 2023 specification by @gredler in https://github.com/zxing/zxing/pull/1681
* Prevent --raw CLR option from failing if result.getRawBytes() is null by @dlenski in https://github.com/zxing/zxing/pull/1683
* Avoid 2 more RSS Expanded finder pattern false positive scenarios by @gredler in https://github.com/zxing/zxing/pull/1692
* Avoid decoding stacked row 1 of N independently by @gredler in https://github.com/zxing/zxing/pull/1693
* Support for platforms where SJIS is unavailable by @blakepuhak in https://github.com/zxing/zxing/pull/1747

##### New Contributors
* @himanshushukla254 made their first contribution in https://github.com/zxing/zxing/pull/1675
* @blakepuhak made their first contribution in https://github.com/zxing/zxing/pull/1747

**Full Changelog**: https://github.com/zxing/zxing/compare/zxing-3.5.2...zxing-3.5.3

### 3.5.2 — ZXing 3.5.2

- Date: 2023-07-30
- Version: 3.5.2
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.5.2
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.5.2

- Minor enhancements for Code 128 and PDF417
- Restore compatibility with older JDKs
See https://github.com/zxing/zxing/milestone/15?closed=1

### 3.5.1 — ZXing 3.5.1

- Date: 2022-11-02
- Version: 3.5.1
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.5.1
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.5.1

- Various minor bug fixes, including more from oss-fuzz
- Avoid very long detection of QR codes in two types of pathological cases
- Don't fail QR code decoding if GB2312 not supported by JDK

See https://github.com/zxing/zxing/milestone/14?closed=1

### 3.5.0 — ZXing 3.5.0

- Date: 2022-05-01
- Version: 3.5.0
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.5.0
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.5.0

- Many edge-case fixes and improvements from [oss-fuzz](https://bugs.chromium.org/p/oss-fuzz/issues/list)
- Various improvements and fixes to Aztec, PDF417, DataMatrix decoding
- New 'minimal' encoding mode from @AlexGeller1 (https://github.com/zxing/zxing/issues/1444)

See https://github.com/zxing/zxing/milestone/13?closed=1

### 3.4.1 — ZXing 3.4.1

- Date: 2020-09-30
- Version: 3.4.1
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.4.1
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.4.1

- Wifi QR codes now recognize PH2:, not H:, for phase 2 method
- Minor bug fixes and improvements

See https://github.com/zxing/zxing/milestone/12?closed=1

### 3.4.0 — ZXing 3.4.0

- Date: 2019-05-18
- Version: 3.4.0
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.4.0
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.4.0

- Requires Java 8+. Note: Android apps using this version must target API 24 or higher.
  - `core`, `javase` modules declare a Java 9+ module
  - `HtmlAssetTranslator` and `StringsResourceTranslator` legacy utilities are moved to a `.client.j2se` subpackage
  - No more releases of the Barcode Scanner app
  - Minor bug fixes to `Code93Writer`
  - Minor improvements to QR code detection

### 3.3.3 — ZXing 3.3.3

- Date: 2018-05-29
- Version: 3.3.3
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.3.3
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.3.3

- Minor fixes and improvements
- Java 9+ support

https://github.com/zxing/zxing/milestone/11?closed=1

### 3.3.2 — ZXing 3.3.2

- Date: 2018-01-31
- Version: 3.3.2
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.3.2
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.3.2

- Add workaround for Gradle + Android build issues
- Minor DataMatrix bug fixes
- Improve WPA2 wi-fi configuration support in Barcode Scanner
- Various translation updates and minor improvements

https://github.com/zxing/zxing/milestone/10?closed=1

### 3.3.1 — ZXing 3.3.1

- Date: 2017-10-25
- Version: 3.3.1
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.3.1
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.3.1

- Various fixes to Code 128, 39 encoding; DataMatrix decoding
- Improvements to speed and robustness of zxing.org decoder
- Java 9 support
- Various translation updates for Barcode Scanner
- Removed Google Glass, ZXing Test apps
- Barcode Scanner 4.7.7
- Note: `core` library will require Android SDK 19+ when used in an Android app

https://github.com/zxing/zxing/issues?q=is%3Aclosed+milestone%3A3.3.1

### 3.3.0 — ZXing 3.3.0

- Date: 2016-09-16
- Version: 3.3.0
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.3.0
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.3.0

- Minor core API additions like `Result.getNumBits`, raw bytes for Aztec
- Small changes for Java 9 compatibility
- Barcode Scanner 4.7.6 release with Android API 23 support
- TIFF support in online decoder
- Many small bug fixes, typo fixes and project build improvements

https://github.com/zxing/zxing/issues?q=is%3Aclosed+milestone%3A3.3.0

### 3.2.1 — ZXing 3.2.1

- Date: 2015-08-19
- Version: 3.2.1
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.2.1
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.2.1

- Small bug fixes

https://github.com/zxing/zxing/issues?q=is%3Aclosed+milestone%3A3.2.1

### 3.2.0 — ZXing 3.2.0

- Date: 2015-02-15
- Version: 3.2.0
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.2.0
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.2.0

- Several bug fixes, especially for Data Matrix and PDF417 parsing
- Retired jruby binding
- Barcode Scanner can now disable history

https://github.com/zxing/zxing/issues?q=is%3Aclosed+milestone%3A3.2.0

### 3.1.0 — ZXing 3.1.0

- Date: 2014-05-22
- Version: 3.1.0
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.1.0
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.1.0

- Retire actionscript port
- Small bug fixes

https://github.com/zxing/zxing/issues?milestone=3&state=closed

### 3.0.1 — ZXing 3.0.1

- Date: 2014-04-18
- Version: 3.0.1
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.0.1
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.0.1

- Several small bug fixes

https://github.com/zxing/zxing/issues?milestone=2&state=closed

### 3.0.0 — ZXing 3.0.0

- Date: 2014-02-28
- Version: 3.0.0
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-3.0.0
- Permalink: https://whatsnew.fyi/product/zxing/releases/3.0.0

- iphone/, cpp/, objc/, and glass-mirror/ are retired
- Java 7 now used for all Java-based modules
- Project moved to github.com/zxing/zxing
- Many small bug fixes and improvements

### 2.3.0 — ZXing 2.3.0

- Date: 2014-01-20
- Version: 2.3.0
- Original notes: https://github.com/zxing/zxing/releases/tag/zxing-2.3.0
- Permalink: https://whatsnew.fyi/product/zxing/releases/2.3.0

This is the latest release before the project migrated to Github. It was released November 29, 2013.