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