Support building from source 2. Build a verified binary cache 3. Version using baselines 4. Build open-source with a package manager 5. Cache build assets internally 6. Monitor, prevent, and respond to vulnerabilities consumers of the library disagree about its API version, a Diamond problem occurs •Very common with open-source, but also possible with 1st party libraries at large companies Library A version ? Library along with the changed libraryCataclysm: Dark Days Ahead Versioning baselinesProblem 4: Building open-source dependencies is hard •Trade-off: writing your own libraries is more initial work, but easier

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outstanding) performance • Last major improvement was in 2008 (See uBLAS FAQ’s) A Little History: Open-Source Libraries Daniel Hanson CppCon 2024 6• “Next Generation” linear algebra libraries (not exhaustive): Iglberger (library author) • Performance tests included comparisons with Eigen A Little History: Open-Source Libraries Daniel Hanson CppCon 2024 7• mdspan (P0009), C++23 • A mutating multidimensional array Daniel Hanson CppCon 2024 32• Linear algebra options originally very limited for C++98 • Robust open-source libraries mid/late 2000’s~ • Eigen • Armadillo • Blaze • Eigen • Header only/expression templates

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individual objects. Hazard Pointer Synchronous Reclamation Beyond Concurrency TS2 – Maged Michael Folly open-source library: github.com/facebook/folly under synchronization/Hazptr.h Is Asynchronous Reclamation Reclamation in Folly Hazard Pointer Synchronous Reclamation Beyond Concurrency TS2 – Maged Michael • Open-source: github.com/facebook/folly under synchronization/Hazptr.h • 2017: Need for synchronous reclamation

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