Golang Weekly Issue 599 covers a range of Go topics including zero-config heap profiling via runtime internals, a deep dive into Go's new Swiss table map implementation with benchmarks, and a comparison of Go logging libraries in 2026. Notable releases include Rapid 1.3 (property-based testing), Limen (composable authentication library), MongoDB Go Driver 2.6, Go-MySQL-Driver 1.10, rqlite 10.0, and Fiber 3.2. Also featured: building a userspace TCP-over-UDP stack in pure Go, a beginner guide to sync.Mutex, and GopherCon 2026 ticket availability.
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