The 1.8.3 update focused on stability and minor API refinements rather than a total overhaul. Notable changes included:
: It allowed systems to decompress data at speeds often exceeding 2 GB/s per CPU core, essentially reaching the hardware limits of many contemporary RAM setups. Stability for Large Data
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Accelerates backup procedures by reducing the time spent on compression. lz4 v183 win64
For developers integrating LZ4 into their applications, v1.8.3 included a valuable API improvement. The LZ4_decompress_safe_partial() function was enhanced to decode exactly the number of bytes requested (#566). This provides finer control over memory and data handling, a critical feature for embedded systems and high-performance applications.
Despite its age, the LZ4 algorithm is embedded in countless modern technologies. Its speed makes it the default or recommended choice for a wide range of performance-critical applications:
| Tool / Command | Compress Time | Decompress Time | Compressed Size | |----------------|---------------|-----------------|------------------| | lz4 (default) | 2.3 s | 0.45 s | 580 MB | | lz4 -9 (HC) | 11.1 s | 0.43 s | 460 MB | | gzip -6 | 14.5 s | 2.2 s | 490 MB | | 7z (Zip) | 45 s | 5 s | 440 MB | This link or copies made by others cannot be deleted
Then there is LZ4. It doesn't care about being the smallest. It cares about being the fastest.
LZ4 v1.8.3 for Windows 64-bit is more than an old version number tucked away in a legacy system. For many IT professionals and developers, it represents the last release before API shifts, a known quantity that just works. Its speed, stability, and native 64-bit performance make it ideal for log rotation, database dumps, and any pipeline where waiting on compression is not an option.
LZ4 decompression requires no additional working memory (RAM) beyond the output buffer itself. The decompiler simply reads the tokens, copies the literals, and copies previous matches using a relative offset pointer. Because it performs direct memory copies ( memcpy ), decompression speeds often exceed 2–5 GB/s per CPU core. Performance Benchmarks: LZ4 vs. Competitors Try again later
-9 is max compression within LZ4 HC mode. 20% smaller than default, but ~5x slower compression (still faster than gzip).
The lz4_v183_win64 package usually includes liblz4.dll and lz4.h . If you are a developer integrating this library: