from my perspective, the biggest changes are: - auto var = eval() - add_observer([this](int value) { this->log(value); }); // lambda expression - vec2 = std:

from my perspective, the biggest changes are: - auto var = eval() - add_observer([this](int value) { this->log(value); }); // lambda expression - vec2 = std::move(vec1); // everything in C++ by default is value-type, so this saves a copy - for (auto&& [k, v] : treemap) - auto ref_ptr = std::make_shared<SomeValue>(42); // ref counting - auto unique_ptr = std::make_unique<SomeValue>(42); // non-sharing, uniquely owning ptr. can only be moved - module foo; import "some-header.h"; export something_from_header; export void your_own_func(); In reality these are 90% features you need to migrate from C++98 to latest version. Don't be terrified by thousands pages of paper, just use them as a reference when you need to.