# Migration Guide

Any [Candera::TextRendering::FontStore](http://dev.doc.cgistudio.at/APILINK/class_candera_1_1_text_rendering_1_1_font_store.html "FontStore is an abstract interface to retrieve font data The font store defines unique descriptor id ...") derived classes need to add a call to [Candera::GlyphAtlas::GetInstance()](http://dev.doc.cgistudio.at/APILINK/group___common_base.html#gaf3cfd1e3261462fd132d3905e90a68b0).RemoveFont(Candera::TextRendering::FaceIdentifier) in their Unload function.

Following an overview about interface changes between [Candera](http://dev.doc.cgistudio.at/APILINK/namespace_candera.html "[DataBinding_RefTypeSample]") V3.3.0 and [Candera](http://dev.doc.cgistudio.at/APILINK/namespace_candera.html "[DataBinding_RefTypeSample]") V3.3.1.

<div class="contents" id="bkmrk-description-candera-"><div class="contents"><div class="textblock"><table class="doxtable"><tbody><tr><th>Description</th><th>[Candera](http://dev.doc.cgistudio.at/APILINK/namespace_candera.html "[DataBinding_RefTypeSample]") V3.3.0</th><th>[Candera](http://dev.doc.cgistudio.at/APILINK/namespace_candera.html "[DataBinding_RefTypeSample]") V3.3.1

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