v3.4.1 is out #168

https://github.com/microsoft/mimalloc/releases/tag/v3.4.1

2026-07-14, v1.9.11, v2.4.1, v3.4.1: various bug and security fixes through LLM audit (by @Zoxc). Fix issue with using OS memory instead of arenas for > 4GiB memory usage (v3), fix concurrency bug in concurrent heap destroy (v3), detect riscV virtual address bits at runtime, add riscV TLS support, reduce spinlock waits (v2), use TLS slots 126/127 on macOS (v3), and other small fixes. All metadata is now separated from heap objects in v3.