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Learn about the breaking changes and deprecated features coming in C++26 in this comprehensive conference talk from ACCU 2025. Explore how C++'s commitment to backward compatibility is balanced with the need to evolve the language by removing harmful or misleading behavior. Discover the deprecation process that allows developers to adapt their code over time before features are eventually removed. Understand all the ways your existing code might break or change meaning when upgrading to C++26, and get insights into remaining deprecated features that could be considerations for the anticipated C++29 standard. Gain valuable knowledge about managing the transition from earlier C++ versions while maintaining code quality and taking advantage of language improvements. The presentation is delivered by Alisdair Meredith, a Bloomberg software developer and former chair of the C++ Standard Committee's Library Working Group, who brings nearly two decades of experience with the C++ standards committee and deep expertise in library development including work on Bloomberg's open source BDE libraries.
