Hi Miklos, I encounter an error when calling fuse_new() from libfuse3.so.3, and I wonder if I missed some macro like 'FUSE_3.1' or fuse_new() could not be called like this? Hope for your help. --- # ./main ./main: /usr/local/lib/libfuse3.so.3: version `FUSE_3.1' not found (required by ./main) main.c: #define FUSE_USE_VERSION 30 #include <fuse3/fuse.h> #include <fuse3/fuse_lowlevel.h> static struct fuse_operations hello_oper; int main(int argc, char *argv[]) { struct fuse_args args = FUSE_ARGS_INIT(argc, argv); struct fuse *fs; fs = fuse_new(&args, &hello_oper, sizeof(hello_oper), NULL); return 0; } --- The fuse3-libs and devel rpm is from the following website: https://centos.pkgs.org/7/epel-x86_64/fuse3-devel-3.6.1-2.el7.x86_64.rpm.html https://centos.pkgs.org/7/epel-x86_64/fuse3-libs-3.6.1-2.el7.x86_64.rpm.html Thanks, Jun