What's new in Git 2.48.0?

Git 2.48.0 introduces several key advancements, focusing on build systems, memory optimization, and reference handling, resulting from collaborative efforts by GitLab's Git team and the broader Git community. A significant update is the implementation of the Meson build system by Patrick Steinhardt, aiming to replace the older Makefile, Autoconf, and CMake systems, offering simpler syntax and better support across operating systems and IDEs. The release also marks the successful elimination of memory leaks in Git's test suite, furthering the goal of optimizing Git for memory usage and "libifying" its internal components. Improvements in reference handling include enhanced bundle URI checks, now allowing for fine-grained handling of fsck issues during fetches, and the addition of reference consistency checks to git-fsck(1), led by Jialuo She. The reftable backend, introduced in a previous release, sees a performance boost through iterator reuse, and the migration tool now supports reflog transfers, albeit with limitations regarding multiple worktrees, thanks to the work led by Karthik Nayak. Finally, the ref-filter subsystem is optimized to handle large numbers of references more efficiently, significantly speeding up certain commands by avoiding unnecessary buffering and iteration.

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