Lz4 V1.8.3 Win64 -

This prioritizes speed. Useful for caching or temporary files.

lz4.exe input.log output.lz4

The Win64 binary (lz4_v1.8.3_win64.zip) is optimized for x86-64 architecture, offering significantly better performance than the 32-bit (Win32) equivalent due to the increased register count in 64-bit mode.

Open a new Command Prompt or PowerShell window and type:

lz4 --version

Expected output:

*** LZ4 CLI (64-bit) v1.8.3, by Yann Collet ***

Tested on a Windows 10 22H2 (Intel i7-10700, NVMe SSD):

| Data Type | Compress (MB/s) | Decompress (MB/s) | Ratio | | :--- | :--- | :--- | :--- | | Text Log (1GB) | 510 | 4,800 | 2.1x | | Binary (EXE) | 380 | 4,200 | 1.8x | | JSON (100MB) | 620 | 5,100 | 3.4x |

Observation: Decompression speed approaches the physical limit of the PCIe bus on NVMe drives, making LZ4 perfect for "lazy decompression" strategies in Windows applications. lz4 v1.8.3 win64

For C/C++ developers compiling with MSVC (Visual Studio) for x64, linking LZ4 v1.8.3 requires careful handling of the legacy lz4hc.h API.

#define LZ4_DLL_EXPORT 1 // Required for dynamic linking on Windows
#include "lz4.h"
#include "lz4hc.h"
// Note for v1.8.3: LZ4_compress_HC requires explicit stack memory.
int compressedSize = LZ4_compress_HC(src, dst, srcSize, dstCapacity, 9);

Win64 specific warning: The 1.8.3 release has a known, but harmless, warning on MSVC (C4267) regarding size_t to int conversion. Ensure your _WIN64 preprocessor definitions handle these 64-bit pointer casts safely.

Release Date: August 23, 2018 Target Platform: Windows 64-bit (x64) License: BSD 2-Clause

If you are looking for the "sweet spot" in LZ4 history—a version that is stable, widely compatible, and just before the major CLI overhauls of v1.9.x—v1.8.3 is likely the build you are looking for. This prioritizes speed

While newer versions exist, v1.8.3 remains a staple in many legacy pipelines and embedded systems due to its robustness and specific API behavior. Here is everything you need to know about this specific release.