Hi Mirek

Now this warning appears:

\Core\z.cpp: In function 'Upp::String Upp::FastCompress(const void*, int)':
\Core\z.cpp:484:63: warning: 'int Upp::LZ4_compress(const char*, char*, int)' is deprecated: use LZ4_compress_default() instead [-Wdeprecated-declarations]
\Core\lib/lz4.h:449:69: note: declared here
 LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress               (const char* source, char* dest, int sourceSize);