# Documentation » Deprecated elements

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## Deprecated

### Table of Contents

src/Output/QRImage.php
src/QRCode.php

### QRImage.php

Line | Element | Reason
--- | --- | ---
17 | QRImage | backward compatibility, use QRGdImage instead

### QRCode.php

Line | Element | Reason
--- | --- | ---
235 | QRCode::isNumber() | use Number::validateString() instead
246 | QRCode::isAlphaNum() | use AlphaNum::validateString() instead
257 | QRCode::isKanji() | use Kanji::validateString() instead
268 | QRCode::isByte() | use Byte::validateString() instead
43 | QRCode::ECC_L | use EccLevel::L instead
50 | QRCode::ECC_M | use EccLevel::M instead
57 | QRCode::ECC_Q | use EccLevel::Q instead
64 | QRCode::ECC_H | use EccLevel::H instead

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