diff --git a/libfuse/include/fuse.h b/libfuse/include/fuse.h
index 9d5f0f43..8e2c9474 100644
--- a/libfuse/include/fuse.h
+++ b/libfuse/include/fuse.h
@@ -929,53 +929,6 @@ extern "C" {
   /** Get session from fuse object */
   struct fuse_session *fuse_get_session(struct fuse *f);
 
-  /* ----------------------------------------------------------- *
-   * Compatibility stuff					       *
-   * ----------------------------------------------------------- */
-
-#if FUSE_USE_VERSION < 26
-#  include "fuse_compat.h"
-#  undef fuse_main
-#  if FUSE_USE_VERSION == 25
-#    define fuse_main(argc, argv, op)				\
-  fuse_main_real_compat25(argc, argv, op, sizeof(*(op)))
-#    define fuse_new fuse_new_compat25
-#    define fuse_setup fuse_setup_compat25
-#    define fuse_teardown fuse_teardown_compat22
-#    define fuse_operations fuse_operations_compat25
-#  elif FUSE_USE_VERSION == 22
-#    define fuse_main(argc, argv, op)				\
-  fuse_main_real_compat22(argc, argv, op, sizeof(*(op)))
-#    define fuse_new fuse_new_compat22
-#    define fuse_setup fuse_setup_compat22
-#    define fuse_teardown fuse_teardown_compat22
-#    define fuse_operations fuse_operations_compat22
-#    define fuse_file_info fuse_file_info_compat
-#  elif FUSE_USE_VERSION == 24
-#    error Compatibility with high-level API version 24 not supported
-#  else
-#    define fuse_dirfil_t fuse_dirfil_t_compat
-#    define __fuse_read_cmd fuse_read_cmd
-#    define __fuse_process_cmd fuse_process_cmd
-#    define __fuse_loop_mt fuse_loop_mt_proc
-#    if FUSE_USE_VERSION == 21
-#      define fuse_operations fuse_operations_compat2
-#      define fuse_main fuse_main_compat2
-#      define fuse_new fuse_new_compat2
-#      define __fuse_setup fuse_setup_compat2
-#      define __fuse_teardown fuse_teardown_compat22
-#      define __fuse_exited fuse_exited
-#      define __fuse_set_getcontext_func fuse_set_getcontext_func
-#    else
-#      define fuse_statfs fuse_statfs_compat1
-#      define fuse_operations fuse_operations_compat1
-#      define fuse_main fuse_main_compat1
-#      define fuse_new fuse_new_compat1
-#      define FUSE_DEBUG FUSE_DEBUG_COMPAT1
-#    endif
-#  endif
-#endif
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/libfuse/include/fuse_common.h b/libfuse/include/fuse_common.h
index 79feb44e..c7d47ea8 100644
--- a/libfuse/include/fuse_common.h
+++ b/libfuse/include/fuse_common.h
@@ -479,40 +479,6 @@ extern "C" {
    */
   void fuse_remove_signal_handlers(struct fuse_session *se);
 
-  /* ----------------------------------------------------------- *
-   * Compatibility stuff					       *
-   * ----------------------------------------------------------- */
-
-#if FUSE_USE_VERSION < 26
-#    ifdef __FreeBSD__
-#	 if FUSE_USE_VERSION < 25
-#	     error On FreeBSD API version 25 or greater must be used
-#	 endif
-#    endif
-#    include "fuse_common_compat.h"
-#    undef FUSE_MINOR_VERSION
-#    undef fuse_main
-#    define fuse_unmount fuse_unmount_compat22
-#    if FUSE_USE_VERSION == 25
-#	 define FUSE_MINOR_VERSION 5
-#	 define fuse_mount fuse_mount_compat25
-#    elif FUSE_USE_VERSION == 24 || FUSE_USE_VERSION == 22
-#	 define FUSE_MINOR_VERSION 4
-#	 define fuse_mount fuse_mount_compat22
-#    elif FUSE_USE_VERSION == 21
-#	 define FUSE_MINOR_VERSION 1
-#	 define fuse_mount fuse_mount_compat22
-#    elif FUSE_USE_VERSION == 11
-#	 warning Compatibility with API version 11 is deprecated
-#	 undef FUSE_MAJOR_VERSION
-#	 define FUSE_MAJOR_VERSION 1
-#	 define FUSE_MINOR_VERSION 1
-#	 define fuse_mount fuse_mount_compat1
-#    else
-#	 error Compatibility with API version other than 21, 22, 24, 25 and 11 not supported
-#    endif
-#endif
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/libfuse/include/fuse_common_compat.h b/libfuse/include/fuse_common_compat.h
deleted file mode 100644
index dea34468..00000000
--- a/libfuse/include/fuse_common_compat.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
-  FUSE: Filesystem in Userspace
-  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
-
-  This program can be distributed under the terms of the GNU LGPLv2.
-  See the file COPYING.LIB.
-*/
-
-/* these definitions provide source compatibility to prior versions.
-   Do not include this file directly! */
-
-struct fuse_file_info_compat
-{
-  int flags;
-  unsigned long fh;
-  int writepage;
-  unsigned int direct_io : 1;
-  unsigned int keep_cache : 1;
-};
-
-int fuse_mount_compat25(const char *mountpoint, struct fuse_args *args);
-
-int fuse_mount_compat22(const char *mountpoint, const char *opts);
-
-int fuse_mount_compat1(const char *mountpoint, const char *args[]);
-
-void fuse_unmount_compat22(const char *mountpoint);
diff --git a/libfuse/include/fuse_compat.h b/libfuse/include/fuse_compat.h
deleted file mode 100644
index a2147a62..00000000
--- a/libfuse/include/fuse_compat.h
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
-  FUSE: Filesystem in Userspace
-  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
-
-  This program can be distributed under the terms of the GNU LGPLv2.
-  See the file COPYING.LIB.
-*/
-
-/* these definitions provide source compatibility to prior versions.
-   Do not include this file directly! */
-
-struct fuse_operations_compat25
-{
-  int (*getattr) (const char *, struct stat *);
-  int (*readlink) (const char *, char *, size_t);
-  int (*mknod) (const char *, mode_t, dev_t);
-  int (*mkdir) (const char *, mode_t);
-  int (*unlink) (const char *);
-  int (*rmdir) (const char *);
-  int (*symlink) (const char *, const char *);
-  int (*rename) (const char *, const char *);
-  int (*link) (const char *, const char *);
-  int (*chmod) (const char *, mode_t);
-  int (*chown) (const char *, uid_t, gid_t);
-  int (*truncate) (const char *, off_t);
-  int (*utime) (const char *, struct utimbuf *);
-  int (*open) (const char *, struct fuse_file_info *);
-  int (*read) (const char *, char *, size_t, off_t,
-               struct fuse_file_info *);
-  int (*write) (const char *, const char *, size_t, off_t,
-                struct fuse_file_info *);
-  int (*statfs) (const char *, struct statvfs *);
-  int (*flush) (const char *, struct fuse_file_info *);
-  int (*release) (const char *, struct fuse_file_info *);
-  int (*fsync) (const char *, int, struct fuse_file_info *);
-  int (*setxattr) (const char *, const char *, const char *, size_t, int);
-  int (*getxattr) (const char *, const char *, char *, size_t);
-  int (*listxattr) (const char *, char *, size_t);
-  int (*removexattr) (const char *, const char *);
-  int (*opendir) (const char *, struct fuse_file_info *);
-  int (*readdir) (const char *, void *, off_t,
-                  struct fuse_file_info *);
-  int (*releasedir) (const char *, struct fuse_file_info *);
-  int (*fsyncdir) (const char *, int, struct fuse_file_info *);
-  void *(*init) (void);
-  void (*destroy) (void *);
-  int (*access) (const char *, int);
-  int (*create) (const char *, mode_t, struct fuse_file_info *);
-  int (*ftruncate) (const char *, off_t, struct fuse_file_info *);
-  int (*fgetattr) (const char *, struct stat *, struct fuse_file_info *);
-};
-
-struct fuse *fuse_new_compat25(int fd, struct fuse_args *args,
-			       const struct fuse_operations_compat25 *op,
-			       size_t op_size);
-
-int fuse_main_real_compat25(int argc, char *argv[],
-			    const struct fuse_operations_compat25 *op,
-			    size_t op_size);
-
-struct fuse *fuse_setup_compat25(int argc, char *argv[],
-				 const struct fuse_operations_compat25 *op,
-				 size_t op_size, char **mountpoint,
-				 int *multithreaded, int *fd);
-
-void fuse_teardown_compat22(struct fuse *fuse, int fd, char *mountpoint);
-
-#if !defined(__FreeBSD__) && !defined(__NetBSD__)
-#include <sys/statfs.h>
-
-struct fuse_operations_compat22 {
-  int (*getattr) (const char *, struct stat *);
-  int (*readlink) (const char *, char *, size_t);
-  int (*mknod) (const char *, mode_t, dev_t);
-  int (*mkdir) (const char *, mode_t);
-  int (*unlink) (const char *);
-  int (*rmdir) (const char *);
-  int (*symlink) (const char *, const char *);
-  int (*rename) (const char *, const char *);
-  int (*link) (const char *, const char *);
-  int (*chmod) (const char *, mode_t);
-  int (*chown) (const char *, uid_t, gid_t);
-  int (*truncate) (const char *, off_t);
-  int (*utime) (const char *, struct utimbuf *);
-  int (*open) (const char *, struct fuse_file_info_compat *);
-  int (*read) (const char *, char *, size_t, off_t,
-               struct fuse_file_info_compat *);
-  int (*write) (const char *, const char *, size_t, off_t,
-                struct fuse_file_info_compat *);
-  int (*statfs) (const char *, struct statfs *);
-  int (*flush) (const char *, struct fuse_file_info_compat *);
-  int (*release) (const char *, struct fuse_file_info_compat *);
-  int (*fsync) (const char *, int, struct fuse_file_info_compat *);
-  int (*setxattr) (const char *, const char *, const char *, size_t, int);
-  int (*getxattr) (const char *, const char *, char *, size_t);
-  int (*listxattr) (const char *, char *, size_t);
-  int (*removexattr) (const char *, const char *);
-  int (*opendir) (const char *, struct fuse_file_info_compat *);
-  int (*readdir) (const char *, void *, off_t,
-                  struct fuse_file_info_compat *);
-  int (*releasedir) (const char *, struct fuse_file_info_compat *);
-  int (*fsyncdir) (const char *, int, struct fuse_file_info_compat *);
-  void *(*init) (void);
-  void (*destroy) (void *);
-};
-
-struct fuse *fuse_new_compat22(int fd, const char *opts,
-			       const struct fuse_operations_compat22 *op,
-			       size_t op_size);
-
-struct fuse *fuse_setup_compat22(int argc, char *argv[],
-				 const struct fuse_operations_compat22 *op,
-				 size_t op_size, char **mountpoint,
-				 int *multithreaded, int *fd);
-
-int fuse_main_real_compat22(int argc, char *argv[],
-			    const struct fuse_operations_compat22 *op,
-			    size_t op_size);
-
-struct fuse_operations_compat2 {
-  int (*getattr)	   (const char *, struct stat *);
-  int (*readlink)	   (const char *, char *, size_t);
-  int (*mknod)	   (const char *, mode_t, dev_t);
-  int (*mkdir)	   (const char *, mode_t);
-  int (*unlink)	   (const char *);
-  int (*rmdir)	   (const char *);
-  int (*symlink)	   (const char *, const char *);
-  int (*rename)	   (const char *, const char *);
-  int (*link)	   (const char *, const char *);
-  int (*chmod)	   (const char *, mode_t);
-  int (*chown)	   (const char *, uid_t, gid_t);
-  int (*truncate)	   (const char *, off_t);
-  int (*utime)	   (const char *, struct utimbuf *);
-  int (*open)	   (const char *, int);
-  int (*read)	   (const char *, char *, size_t, off_t);
-  int (*write)	   (const char *, const char *, size_t, off_t);
-  int (*statfs)	   (const char *, struct statfs *);
-  int (*flush)	   (const char *);
-  int (*release)	   (const char *, int);
-  int (*fsync)	   (const char *, int);
-  int (*setxattr)	   (const char *, const char *, const char *,
-			    size_t, int);
-  int (*getxattr)	   (const char *, const char *, char *, size_t);
-  int (*listxattr)   (const char *, char *, size_t);
-  int (*removexattr) (const char *, const char *);
-};
-
-int fuse_main_compat2(int argc, char *argv[],
-		      const struct fuse_operations_compat2 *op);
-
-struct fuse *fuse_new_compat2(int fd, const char *opts,
-			      const struct fuse_operations_compat2 *op);
-
-struct fuse *fuse_setup_compat2(int argc, char *argv[],
-				const struct fuse_operations_compat2 *op,
-				char **mountpoint, int *multithreaded, int *fd);
-
-struct fuse_statfs_compat1 {
-  long block_size;
-  long blocks;
-  long blocks_free;
-  long files;
-  long files_free;
-  long namelen;
-};
-
-struct fuse_operations_compat1 {
-  int (*getattr)	(const char *, struct stat *);
-  int (*readlink) (const char *, char *, size_t);
-  int (*mknod)	(const char *, mode_t, dev_t);
-  int (*mkdir)	(const char *, mode_t);
-  int (*unlink)	(const char *);
-  int (*rmdir)	(const char *);
-  int (*symlink)	(const char *, const char *);
-  int (*rename)	(const char *, const char *);
-  int (*link)	(const char *, const char *);
-  int (*chmod)	(const char *, mode_t);
-  int (*chown)	(const char *, uid_t, gid_t);
-  int (*truncate) (const char *, off_t);
-  int (*utime)	(const char *, struct utimbuf *);
-  int (*open)	(const char *, int);
-  int (*read)	(const char *, char *, size_t, off_t);
-  int (*write)	(const char *, const char *, size_t, off_t);
-  int (*statfs)	(struct fuse_statfs_compat1 *);
-  int (*release)	(const char *, int);
-  int (*fsync)	(const char *, int);
-};
-
-#define FUSE_DEBUG_COMPAT1	 (1 << 1)
-
-struct fuse *fuse_new_compat1(int fd, int flags,
-			      const struct fuse_operations_compat1 *op);
-
-void fuse_main_compat1(int argc, char *argv[],
-		       const struct fuse_operations_compat1 *op);
-
-#endif /* __FreeBSD__ || __NetBSD__ */
diff --git a/libfuse/include/fuse_lowlevel.h b/libfuse/include/fuse_lowlevel.h
index 8054b149..d3e43e64 100644
--- a/libfuse/include/fuse_lowlevel.h
+++ b/libfuse/include/fuse_lowlevel.h
@@ -1834,28 +1834,6 @@ extern "C" {
    */
   void fuse_chan_destroy(struct fuse_chan *ch);
 
-  /* ----------------------------------------------------------- *
-   * Compatibility stuff					       *
-   * ----------------------------------------------------------- */
-
-#if FUSE_USE_VERSION < 26
-#  include "fuse_lowlevel_compat.h"
-#  define fuse_chan_ops fuse_chan_ops_compat24
-#  define fuse_chan_new fuse_chan_new_compat24
-#  if FUSE_USE_VERSION == 25
-#    define fuse_lowlevel_ops fuse_lowlevel_ops_compat25
-#    define fuse_lowlevel_new fuse_lowlevel_new_compat25
-#  elif FUSE_USE_VERSION == 24
-#    define fuse_lowlevel_ops fuse_lowlevel_ops_compat
-#    define fuse_lowlevel_new fuse_lowlevel_new_compat
-#    define fuse_file_info fuse_file_info_compat
-#    define fuse_reply_statfs fuse_reply_statfs_compat
-#    define fuse_reply_open fuse_reply_open_compat
-#  else
-#    error Compatibility with low-level API version < 24 not supported
-#  endif
-#endif
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/libfuse/include/fuse_lowlevel_compat.h b/libfuse/include/fuse_lowlevel_compat.h
deleted file mode 100644
index 5c4649d7..00000000
--- a/libfuse/include/fuse_lowlevel_compat.h
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
-  FUSE: Filesystem in Userspace
-  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
-
-  This program can be distributed under the terms of the GNU LGPLv2.
-  See the file COPYING.LIB.
-*/
-
-/* these definitions provide source compatibility to prior versions.
-   Do not include this file directly! */
-
-struct fuse_lowlevel_ops_compat25
-{
-  void (*init) (void *userdata);
-  void (*destroy) (void *userdata);
-  void (*lookup) (fuse_req_t req, fuse_ino_t parent, const char *name);
-  void (*forget) (fuse_req_t req, fuse_ino_t ino, unsigned long nlookup);
-  void (*getattr) (fuse_req_t req, fuse_ino_t ino,
-                   struct fuse_file_info *fi);
-  void (*setattr) (fuse_req_t req, fuse_ino_t ino, struct stat *attr,
-                   int to_set, struct fuse_file_info *fi);
-  void (*readlink) (fuse_req_t req, fuse_ino_t ino);
-  void (*mknod) (fuse_req_t req, fuse_ino_t parent, const char *name,
-                 mode_t mode, dev_t rdev);
-  void (*mkdir) (fuse_req_t req, fuse_ino_t parent, const char *name,
-                 mode_t mode);
-  void (*unlink) (fuse_req_t req, fuse_ino_t parent, const char *name);
-  void (*rmdir) (fuse_req_t req, fuse_ino_t parent, const char *name);
-  void (*symlink) (fuse_req_t req, const char *link, fuse_ino_t parent,
-                   const char *name);
-  void (*rename) (fuse_req_t req, fuse_ino_t parent, const char *name,
-                  fuse_ino_t newparent, const char *newname);
-  void (*link) (fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent,
-                const char *newname);
-  void (*open) (fuse_req_t req, fuse_ino_t ino,
-                struct fuse_file_info *fi);
-  void (*read) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
-                struct fuse_file_info *fi);
-  void (*write) (fuse_req_t req, fuse_ino_t ino, const char *buf,
-                 size_t size, off_t off, struct fuse_file_info *fi);
-  void (*flush) (fuse_req_t req, fuse_ino_t ino,
-                 struct fuse_file_info *fi);
-  void (*release) (fuse_req_t req, fuse_ino_t ino,
-                   struct fuse_file_info *fi);
-  void (*fsync) (fuse_req_t req, fuse_ino_t ino, int datasync,
-                 struct fuse_file_info *fi);
-  void (*opendir) (fuse_req_t req, fuse_ino_t ino,
-                   struct fuse_file_info *fi);
-  void (*readdir) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
-                   struct fuse_file_info *fi);
-  void (*releasedir) (fuse_req_t req, fuse_ino_t ino,
-                      struct fuse_file_info *fi);
-  void (*fsyncdir) (fuse_req_t req, fuse_ino_t ino, int datasync,
-                    struct fuse_file_info *fi);
-  void (*statfs) (fuse_req_t req);
-  void (*setxattr) (fuse_req_t req, fuse_ino_t ino, const char *name,
-                    const char *value, size_t size, int flags);
-  void (*getxattr) (fuse_req_t req, fuse_ino_t ino, const char *name,
-                    size_t size);
-  void (*listxattr) (fuse_req_t req, fuse_ino_t ino, size_t size);
-  void (*removexattr) (fuse_req_t req, fuse_ino_t ino, const char *name);
-  void (*access) (fuse_req_t req, fuse_ino_t ino, int mask);
-  void (*create) (fuse_req_t req, fuse_ino_t parent, const char *name,
-                  mode_t mode, struct fuse_file_info *fi);
-};
-
-struct fuse_session *fuse_lowlevel_new_compat25(struct fuse_args *args,
-                                                const struct fuse_lowlevel_ops_compat25 *op,
-                                                size_t op_size, void *userdata);
-
-size_t fuse_dirent_size(size_t namelen);
-
-char *fuse_add_dirent(char *buf, const char *name, const struct stat *stbuf,
-		      off_t off);
-
-#if !defined(__FreeBSD__) && !defined(__NetBSD__)
-
-#include <sys/statfs.h>
-
-struct fuse_lowlevel_ops_compat
-{
-  void (*init) (void *userdata);
-  void (*destroy) (void *userdata);
-  void (*lookup) (fuse_req_t req, fuse_ino_t parent, const char *name);
-  void (*forget) (fuse_req_t req, fuse_ino_t ino, unsigned long nlookup);
-  void (*getattr) (fuse_req_t req, fuse_ino_t ino,
-                   struct fuse_file_info_compat *fi);
-  void (*setattr) (fuse_req_t req, fuse_ino_t ino, struct stat *attr,
-                   int to_set, struct fuse_file_info_compat *fi);
-  void (*readlink) (fuse_req_t req, fuse_ino_t ino);
-  void (*mknod) (fuse_req_t req, fuse_ino_t parent, const char *name,
-                 mode_t mode, dev_t rdev);
-  void (*mkdir) (fuse_req_t req, fuse_ino_t parent, const char *name,
-                 mode_t mode);
-  void (*unlink) (fuse_req_t req, fuse_ino_t parent, const char *name);
-  void (*rmdir) (fuse_req_t req, fuse_ino_t parent, const char *name);
-  void (*symlink) (fuse_req_t req, const char *link, fuse_ino_t parent,
-                   const char *name);
-  void (*rename) (fuse_req_t req, fuse_ino_t parent, const char *name,
-                  fuse_ino_t newparent, const char *newname);
-  void (*link) (fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent,
-                const char *newname);
-  void (*open) (fuse_req_t req, fuse_ino_t ino,
-                struct fuse_file_info_compat *fi);
-  void (*read) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
-                struct fuse_file_info_compat *fi);
-  void (*write) (fuse_req_t req, fuse_ino_t ino, const char *buf,
-                 size_t size, off_t off, struct fuse_file_info_compat *fi);
-  void (*flush) (fuse_req_t req, fuse_ino_t ino,
-                 struct fuse_file_info_compat *fi);
-  void (*release) (fuse_req_t req, fuse_ino_t ino,
-                   struct fuse_file_info_compat *fi);
-  void (*fsync) (fuse_req_t req, fuse_ino_t ino, int datasync,
-                 struct fuse_file_info_compat *fi);
-  void (*opendir) (fuse_req_t req, fuse_ino_t ino,
-                   struct fuse_file_info_compat *fi);
-  void (*readdir) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
-                   struct fuse_file_info_compat *fi);
-  void (*releasedir) (fuse_req_t req, fuse_ino_t ino,
-                      struct fuse_file_info_compat *fi);
-  void (*fsyncdir) (fuse_req_t req, fuse_ino_t ino, int datasync,
-                    struct fuse_file_info_compat *fi);
-  void (*statfs) (fuse_req_t req);
-  void (*setxattr) (fuse_req_t req, fuse_ino_t ino, const char *name,
-                    const char *value, size_t size, int flags);
-  void (*getxattr) (fuse_req_t req, fuse_ino_t ino, const char *name,
-                    size_t size);
-  void (*listxattr) (fuse_req_t req, fuse_ino_t ino, size_t size);
-  void (*removexattr) (fuse_req_t req, fuse_ino_t ino, const char *name);
-  void (*access) (fuse_req_t req, fuse_ino_t ino, int mask);
-  void (*create) (fuse_req_t req, fuse_ino_t parent, const char *name,
-                  mode_t mode, struct fuse_file_info_compat *fi);
-};
-
-int fuse_reply_statfs_compat(fuse_req_t req, const struct statfs *stbuf);
-
-int fuse_reply_open_compat(fuse_req_t req,
-			   const struct fuse_file_info_compat *fi);
-
-struct fuse_session *fuse_lowlevel_new_compat(const char *opts,
-                                              const struct fuse_lowlevel_ops_compat *op,
-                                              size_t op_size, void *userdata);
-
-#endif /* __FreeBSD__ || __NetBSD__ */
-
-struct fuse_chan_ops_compat24 {
-  int (*receive)(struct fuse_chan *ch, char *buf, size_t size);
-  int (*send)(struct fuse_chan *ch, const struct iovec iov[],
-              size_t count);
-  void (*destroy)(struct fuse_chan *ch);
-};
-
-struct fuse_chan *fuse_chan_new_compat24(struct fuse_chan_ops_compat24 *op,
-					 int fd, size_t bufsize, void *data);
-
-int fuse_chan_receive(struct fuse_chan *ch, char *buf, size_t size);
-struct fuse_chan *fuse_kern_chan_new(int fd);
diff --git a/libfuse/include/old/fuse.h b/libfuse/include/old/fuse.h
deleted file mode 100644
index 3db0945a..00000000
--- a/libfuse/include/old/fuse.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
-   This header is for compatibility with older software using FUSE.
-
-   Please use 'pkg-config --cflags fuse' to set include path.  The
-   correct usage is still '#include <fuse.h>', not '#include
-   <fuse/fuse.h>'.
-*/
-
-#include "fuse/fuse.h"
diff --git a/libfuse/lib/fuse.c b/libfuse/lib/fuse.c
index 93d6c278..fd7bdd0d 100644
--- a/libfuse/lib/fuse.c
+++ b/libfuse/lib/fuse.c
@@ -15,8 +15,6 @@
 #include "fuse_lowlevel.h"
 #include "fuse_opt.h"
 #include "fuse_misc.h"
-#include "fuse_common_compat.h"
-#include "fuse_compat.h"
 #include "fuse_kernel.h"
 #include "fuse_dirents.h"
 
@@ -75,7 +73,6 @@ struct fuse_fs
 {
   struct fuse_operations op;
   void *user_data;
-  int compat;
   int debug;
 };
 
@@ -1424,128 +1421,6 @@ static inline void fuse_prepare_interrupt(struct fuse *f, fuse_req_t req,
     fuse_do_prepare_interrupt(req, d);
 }
 
-#if !defined(__FreeBSD__) && !defined(__NetBSD__)
-
-static int fuse_compat_open(struct fuse_fs *fs, const char *path,
-			    struct fuse_file_info *fi)
-{
-  int err;
-  if (!fs->compat || fs->compat >= 25)
-    err = fs->op.open(path, fi);
-  else if (fs->compat == 22) {
-    struct fuse_file_info_compat tmp;
-    memcpy(&tmp, fi, sizeof(tmp));
-    err = ((struct fuse_operations_compat22 *) &fs->op)->open(path,&tmp);
-    memcpy(fi, &tmp, sizeof(tmp));
-    fi->fh = tmp.fh;
-  } else
-    err = ((struct fuse_operations_compat2 *) &fs->op)
-      ->open(path, fi->flags);
-  return err;
-}
-
-static int fuse_compat_release(struct fuse_fs *fs,
-			       struct fuse_file_info *fi)
-{
-  if (!fs->compat || fs->compat >= 22)
-    return fs->op.release(fi);
-  else
-    return ((struct fuse_operations_compat2 *) &fs->op)
-      ->release(NULL, fi->flags);
-}
-
-static int fuse_compat_opendir(struct fuse_fs *fs, const char *path,
-			       struct fuse_file_info *fi)
-{
-  if (!fs->compat || fs->compat >= 25)
-    return fs->op.opendir(path, fi);
-  else {
-    int err;
-    struct fuse_file_info_compat tmp;
-    memcpy(&tmp, fi, sizeof(tmp));
-    err = ((struct fuse_operations_compat22 *) &fs->op)
-      ->opendir(path, &tmp);
-    memcpy(fi, &tmp, sizeof(tmp));
-    fi->fh = tmp.fh;
-    return err;
-  }
-}
-
-static void convert_statfs_compat(struct fuse_statfs_compat1 *compatbuf,
-				  struct statvfs *stbuf)
-{
-  stbuf->f_bsize	 = compatbuf->block_size;
-  stbuf->f_blocks	 = compatbuf->blocks;
-  stbuf->f_bfree	 = compatbuf->blocks_free;
-  stbuf->f_bavail	 = compatbuf->blocks_free;
-  stbuf->f_files	 = compatbuf->files;
-  stbuf->f_ffree	 = compatbuf->files_free;
-  stbuf->f_namemax = compatbuf->namelen;
-}
-
-static void convert_statfs_old(struct statfs *oldbuf, struct statvfs *stbuf)
-{
-  stbuf->f_bsize	 = oldbuf->f_bsize;
-  stbuf->f_blocks	 = oldbuf->f_blocks;
-  stbuf->f_bfree	 = oldbuf->f_bfree;
-  stbuf->f_bavail	 = oldbuf->f_bavail;
-  stbuf->f_files	 = oldbuf->f_files;
-  stbuf->f_ffree	 = oldbuf->f_ffree;
-  stbuf->f_namemax = oldbuf->f_namelen;
-}
-
-static int fuse_compat_statfs(struct fuse_fs *fs, const char *path,
-			      struct statvfs *buf)
-{
-  int err;
-
-  if (!fs->compat || fs->compat >= 25) {
-    err = fs->op.statfs(fs->compat == 25 ? "/" : path, buf);
-  } else if (fs->compat > 11) {
-    struct statfs oldbuf;
-    err = ((struct fuse_operations_compat22 *) &fs->op)
-      ->statfs("/", &oldbuf);
-    if (!err)
-      convert_statfs_old(&oldbuf, buf);
-  } else {
-    struct fuse_statfs_compat1 compatbuf;
-    memset(&compatbuf, 0, sizeof(struct fuse_statfs_compat1));
-    err = ((struct fuse_operations_compat1 *) &fs->op)
-      ->statfs(&compatbuf);
-    if (!err)
-      convert_statfs_compat(&compatbuf, buf);
-  }
-  return err;
-}
-
-#else /* __FreeBSD__ || __NetBSD__ */
-
-static inline int fuse_compat_open(struct fuse_fs *fs, char *path,
-				   struct fuse_file_info *fi)
-{
-  return fs->op.open(path, fi);
-}
-
-static inline int fuse_compat_release(struct fuse_fs *fs,
-				      struct fuse_file_info *fi)
-{
-  return fs->op.release(fi);
-}
-
-static inline int fuse_compat_opendir(struct fuse_fs *fs, const char *path,
-				      struct fuse_file_info *fi)
-{
-  return fs->op.opendir(path, fi);
-}
-
-static inline int fuse_compat_statfs(struct fuse_fs *fs, const char *path,
-				     struct statvfs *buf)
-{
-  return fs->op.statfs(fs->compat == 25 ? "/" : path, buf);
-}
-
-#endif /* __FreeBSD__ || __NetBSD__ */
-
 int
 fuse_fs_getattr(struct fuse_fs  *fs,
                 const char      *path,
@@ -1679,7 +1554,7 @@ int fuse_fs_release(struct fuse_fs *fs,
               fi->flush ? "+flush" : "",
               (unsigned long long) fi->fh, fi->flags);
 
-    return fuse_compat_release(fs, fi);
+    return fs->op.release(fi);
   } else {
     return 0;
   }
@@ -1696,7 +1571,7 @@ int fuse_fs_opendir(struct fuse_fs *fs, const char *path,
       fprintf(stderr, "opendir flags: 0x%x %s\n", fi->flags,
               path);
 
-    err = fuse_compat_opendir(fs, path, fi);
+    err = fs->op.opendir(path,fi);
 
     if (fs->debug && !err)
       fprintf(stderr, "   opendir[%lli] flags: 0x%x %s\n",
@@ -1719,7 +1594,7 @@ int fuse_fs_open(struct fuse_fs *fs, const char *path,
       fprintf(stderr, "open flags: 0x%x %s\n", fi->flags,
               path);
 
-    err = fuse_compat_open(fs, path, fi);
+    err = fs->op.open(path,fi);
 
     if (fs->debug && !err)
       fprintf(stderr, "   open[%lli] flags: 0x%x %s\n",
@@ -1941,7 +1816,7 @@ int fuse_fs_statfs(struct fuse_fs *fs, const char *path, struct statvfs *buf)
     if (fs->debug)
       fprintf(stderr, "statfs %s\n", path);
 
-    return fuse_compat_statfs(fs, path, buf);
+    return fs->op.statfs(path,buf);
   } else {
     buf->f_namemax = 255;
     buf->f_bsize = 512;
@@ -4392,24 +4267,6 @@ struct fuse_context *fuse_get_context(void)
   return &fuse_get_context_internal()->ctx;
 }
 
-/*
- * The size of fuse_context got extended, so need to be careful about
- * incompatibility (i.e. a new binary cannot work with an old
- * library).
- */
-struct fuse_context *fuse_get_context_compat22(void);
-struct fuse_context *fuse_get_context_compat22(void)
-{
-  return &fuse_get_context_internal()->ctx;
-}
-FUSE_SYMVER(".symver fuse_get_context_compat22,fuse_get_context@FUSE_2.2");
-
-int fuse_getgroups(int size, gid_t list[])
-{
-  fuse_req_t req = fuse_get_context_internal()->req;
-  return fuse_req_getgroups(req, size, list);
-}
-
 int fuse_interrupted(void)
 {
   return fuse_req_interrupted(fuse_get_context_internal()->req);
@@ -4588,7 +4445,7 @@ void fuse_stop_cleanup_thread(struct fuse *f)
 
 struct fuse *fuse_new_common(struct fuse_chan *ch, struct fuse_args *args,
 			     const struct fuse_operations *op,
-			     size_t op_size, void *user_data, int compat)
+			     size_t op_size, void *user_data)
 {
   struct fuse *f;
   struct node *root;
@@ -4608,7 +4465,6 @@ struct fuse *fuse_new_common(struct fuse_chan *ch, struct fuse_args *args,
   if (!fs)
     goto out_free;
 
-  fs->compat = compat;
   f->fs = fs;
 
   /* Oh f**k, this is ugly! */
@@ -4628,11 +4484,6 @@ struct fuse *fuse_new_common(struct fuse_chan *ch, struct fuse_args *args,
                      fuse_lib_opt_proc) == -1)
     goto out_free_fs;
 
-  if (compat && compat <= 25) {
-    if (fuse_sync_compat_args(args) == -1)
-      goto out_free_fs;
-  }
-
   f->se = fuse_lowlevel_new_common(args, &llop, sizeof(llop), f);
   if (f->se == NULL) {
     goto out_free_fs;
@@ -4703,7 +4554,7 @@ struct fuse *fuse_new(struct fuse_chan *ch, struct fuse_args *args,
 		      const struct fuse_operations *op, size_t op_size,
 		      void *user_data)
 {
-  return fuse_new_common(ch, args, op, op_size, user_data, 0);
+  return fuse_new_common(ch, args, op, op_size, user_data);
 }
 
 void fuse_destroy(struct fuse *f)
@@ -4750,91 +4601,6 @@ void fuse_destroy(struct fuse *f)
   fuse_delete_context_key();
 }
 
-static
-struct fuse *
-fuse_new_common_compat25(int fd, struct fuse_args *args,
-                         const struct fuse_operations *op,
-                         size_t op_size, int compat)
-{
-  struct fuse *f = NULL;
-  struct fuse_chan *ch = fuse_kern_chan_new(fd);
-
-  if (ch)
-    f = fuse_new_common(ch, args, op, op_size, NULL, compat);
-
-  return f;
-}
-
-#if !defined(__FreeBSD__) && !defined(__NetBSD__)
-
-static struct fuse *fuse_new_common_compat(int fd, const char *opts,
-					   const struct fuse_operations *op,
-					   size_t op_size, int compat)
-{
-  struct fuse *f;
-  struct fuse_args args = FUSE_ARGS_INIT(0, NULL);
-
-  if (fuse_opt_add_arg(&args, "") == -1)
-    return NULL;
-  if (opts &&
-      (fuse_opt_add_arg(&args, "-o") == -1 ||
-       fuse_opt_add_arg(&args, opts) == -1)) {
-    fuse_opt_free_args(&args);
-    return NULL;
-  }
-
-  f = fuse_new_common_compat25(fd, &args, op, op_size, compat);
-  fuse_opt_free_args(&args);
-
-  return f;
-}
-
-struct fuse *fuse_new_compat22(int fd, const char *opts,
-			       const struct fuse_operations_compat22 *op,
-			       size_t op_size)
-{
-  return fuse_new_common_compat(fd, opts, (struct fuse_operations *) op,
-                                op_size, 22);
-}
-
-struct fuse *fuse_new_compat2(int fd, const char *opts,
-			      const struct fuse_operations_compat2 *op)
-{
-  return fuse_new_common_compat(fd, opts, (struct fuse_operations *) op,
-                                sizeof(struct fuse_operations_compat2),
-                                21);
-}
-
-struct fuse *fuse_new_compat1(int fd, int flags,
-			      const struct fuse_operations_compat1 *op)
-{
-  const char *opts = NULL;
-  if (flags & FUSE_DEBUG_COMPAT1)
-    opts = "debug";
-  return fuse_new_common_compat(fd, opts, (struct fuse_operations *) op,
-                                sizeof(struct fuse_operations_compat1),
-                                11);
-}
-
-FUSE_SYMVER(".symver fuse_exited,__fuse_exited@");
-FUSE_SYMVER(".symver fuse_process_cmd,__fuse_process_cmd@");
-FUSE_SYMVER(".symver fuse_read_cmd,__fuse_read_cmd@");
-FUSE_SYMVER(".symver fuse_set_getcontext_func,__fuse_set_getcontext_func@");
-FUSE_SYMVER(".symver fuse_new_compat2,fuse_new@");
-FUSE_SYMVER(".symver fuse_new_compat22,fuse_new@FUSE_2.2");
-
-#endif /* __FreeBSD__ || __NetBSD__  */
-
-struct fuse *fuse_new_compat25(int fd, struct fuse_args *args,
-			       const struct fuse_operations_compat25 *op,
-			       size_t op_size)
-{
-  return fuse_new_common_compat25(fd, args, (struct fuse_operations *) op,
-                                  op_size, 25);
-}
-
-FUSE_SYMVER(".symver fuse_new_compat25,fuse_new@FUSE_2.5");
-
 int
 fuse_config_num_threads(const struct fuse *fuse_)
 {
diff --git a/libfuse/lib/fuse_i.h b/libfuse/lib/fuse_i.h
index 4eb3bfaa..80b5a683 100644
--- a/libfuse/lib/fuse_i.h
+++ b/libfuse/lib/fuse_i.h
@@ -98,9 +98,7 @@ struct fuse_cmd
 
 struct fuse *fuse_new_common(struct fuse_chan *ch, struct fuse_args *args,
 			     const struct fuse_operations *op,
-			     size_t op_size, void *user_data, int compat);
-
-int fuse_sync_compat_args(struct fuse_args *args);
+			     size_t op_size, void *user_data);
 
 struct fuse_chan *fuse_kern_chan_new(int fd);
 
@@ -108,7 +106,6 @@ struct fuse_session *fuse_lowlevel_new_common(struct fuse_args *args,
                                               const struct fuse_lowlevel_ops *op,
                                               size_t op_size, void *userdata);
 
-void fuse_kern_unmount_compat22(const char *mountpoint);
 int fuse_chan_clearfd(struct fuse_chan *ch);
 
 void fuse_kern_unmount(const char *mountpoint, int fd);
@@ -125,7 +122,6 @@ struct fuse *fuse_setup_common(int argc, char *argv[],
 			       char **mountpoint,
 			       int *multithreaded,
 			       int *fd,
-			       void *user_data,
-			       int compat);
+			       void *user_data);
 
 int fuse_start_thread(pthread_t *thread_id, void *(*func)(void *), void *arg);
diff --git a/libfuse/lib/fuse_lowlevel.c b/libfuse/lib/fuse_lowlevel.c
index 22f96b22..8a922477 100644
--- a/libfuse/lib/fuse_lowlevel.c
+++ b/libfuse/lib/fuse_lowlevel.c
@@ -13,8 +13,6 @@
 #include "fuse_kernel.h"
 #include "fuse_opt.h"
 #include "fuse_misc.h"
-#include "fuse_common_compat.h"
-#include "fuse_lowlevel_compat.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -2290,21 +2288,6 @@ const struct fuse_ctx *fuse_req_ctx(fuse_req_t req)
   return &req->ctx;
 }
 
-/*
- * The size of fuse_ctx got extended, so need to be careful about
- * incompatibility (i.e. a new binary cannot work with an old
- * library).
- */
-const struct fuse_ctx *fuse_req_ctx_compat24(fuse_req_t req);
-const struct fuse_ctx *fuse_req_ctx_compat24(fuse_req_t req)
-{
-  return fuse_req_ctx(req);
-}
-#ifndef __NetBSD__
-FUSE_SYMVER(".symver fuse_req_ctx_compat24,fuse_req_ctx@FUSE_2.4");
-#endif
-
-
 void fuse_req_interrupt_func(fuse_req_t req, fuse_interrupt_func_t func,
 			     void *data)
 {
@@ -2849,136 +2832,11 @@ struct fuse_session *fuse_lowlevel_new_common(struct fuse_args *args,
   return NULL;
 }
 
-
-struct fuse_session *fuse_lowlevel_new(struct fuse_args *args,
-				       const struct fuse_lowlevel_ops *op,
-				       size_t op_size, void *userdata)
+struct fuse_session*
+fuse_lowlevel_new(struct fuse_args *args,
+                  const struct fuse_lowlevel_ops *op,
+                  size_t op_size,
+                  void *userdata)
 {
   return fuse_lowlevel_new_common(args, op, op_size, userdata);
 }
-
-#if !defined(__FreeBSD__) && !defined(__NetBSD__)
-
-static void fill_open_compat(struct fuse_open_out *arg,
-			     const struct fuse_file_info_compat *f)
-{
-  arg->fh = f->fh;
-  if (f->direct_io)
-    arg->open_flags |= FOPEN_DIRECT_IO;
-  if (f->keep_cache)
-    arg->open_flags |= FOPEN_KEEP_CACHE;
-}
-
-static void convert_statfs_compat(const struct statfs *compatbuf,
-				  struct statvfs *buf)
-{
-  buf->f_bsize	= compatbuf->f_bsize;
-  buf->f_blocks	= compatbuf->f_blocks;
-  buf->f_bfree	= compatbuf->f_bfree;
-  buf->f_bavail	= compatbuf->f_bavail;
-  buf->f_files	= compatbuf->f_files;
-  buf->f_ffree	= compatbuf->f_ffree;
-  buf->f_namemax	= compatbuf->f_namelen;
-}
-
-int fuse_reply_open_compat(fuse_req_t req,
-			   const struct fuse_file_info_compat *f)
-{
-  struct fuse_open_out arg;
-
-  memset(&arg, 0, sizeof(arg));
-  fill_open_compat(&arg, f);
-  return send_reply_ok(req, &arg, sizeof(arg));
-}
-
-int fuse_reply_statfs_compat(fuse_req_t req, const struct statfs *stbuf)
-{
-  struct statvfs newbuf;
-
-  memset(&newbuf, 0, sizeof(newbuf));
-  convert_statfs_compat(stbuf, &newbuf);
-
-  return fuse_reply_statfs(req, &newbuf);
-}
-
-struct fuse_session *fuse_lowlevel_new_compat(const char *opts,
-                                              const struct fuse_lowlevel_ops_compat *op,
-                                              size_t op_size, void *userdata)
-{
-  struct fuse_session *se;
-  struct fuse_args args = FUSE_ARGS_INIT(0, NULL);
-
-  if (opts &&
-      (fuse_opt_add_arg(&args, "") == -1 ||
-       fuse_opt_add_arg(&args, "-o") == -1 ||
-       fuse_opt_add_arg(&args, opts) == -1)) {
-    fuse_opt_free_args(&args);
-    return NULL;
-  }
-  se = fuse_lowlevel_new(&args, (const struct fuse_lowlevel_ops *) op,
-                         op_size, userdata);
-  fuse_opt_free_args(&args);
-
-  return se;
-}
-
-struct fuse_ll_compat_conf {
-  unsigned max_read;
-  int set_max_read;
-};
-
-static const struct fuse_opt fuse_ll_opts_compat[] = {
-  { "max_read=", offsetof(struct fuse_ll_compat_conf, set_max_read), 1 },
-  { "max_read=%u", offsetof(struct fuse_ll_compat_conf, max_read), 0 },
-  FUSE_OPT_KEY("max_read=", FUSE_OPT_KEY_KEEP),
-  FUSE_OPT_END
-};
-
-int fuse_sync_compat_args(struct fuse_args *args)
-{
-  struct fuse_ll_compat_conf conf;
-
-  memset(&conf, 0, sizeof(conf));
-  if (fuse_opt_parse(args, &conf, fuse_ll_opts_compat, NULL) == -1)
-    return -1;
-
-  if (fuse_opt_insert_arg(args, 1, "-osync_read"))
-    return -1;
-
-  if (conf.set_max_read) {
-    char tmpbuf[64];
-
-    sprintf(tmpbuf, "-omax_readahead=%u", conf.max_read);
-    if (fuse_opt_insert_arg(args, 1, tmpbuf) == -1)
-      return -1;
-  }
-  return 0;
-}
-
-FUSE_SYMVER(".symver fuse_reply_statfs_compat,fuse_reply_statfs@FUSE_2.4");
-FUSE_SYMVER(".symver fuse_reply_open_compat,fuse_reply_open@FUSE_2.4");
-FUSE_SYMVER(".symver fuse_lowlevel_new_compat,fuse_lowlevel_new@FUSE_2.4");
-
-#else /* __FreeBSD__ || __NetBSD__ */
-
-int fuse_sync_compat_args(struct fuse_args *args)
-{
-  (void) args;
-  return 0;
-}
-
-#endif /* __FreeBSD__ || __NetBSD__ */
-
-struct fuse_session *fuse_lowlevel_new_compat25(struct fuse_args *args,
-                                                const struct fuse_lowlevel_ops_compat25 *op,
-                                                size_t op_size, void *userdata)
-{
-  if (fuse_sync_compat_args(args) == -1)
-    return NULL;
-
-  return fuse_lowlevel_new_common(args,
-                                  (const struct fuse_lowlevel_ops *) op,
-                                  op_size, userdata);
-}
-
-FUSE_SYMVER(".symver fuse_lowlevel_new_compat25,fuse_lowlevel_new@FUSE_2.5");
diff --git a/libfuse/lib/fuse_opt.c b/libfuse/lib/fuse_opt.c
index 5605f4b7..391a0666 100644
--- a/libfuse/lib/fuse_opt.c
+++ b/libfuse/lib/fuse_opt.c
@@ -97,13 +97,6 @@ int fuse_opt_insert_arg(struct fuse_args *args, int pos, const char *arg)
   return fuse_opt_insert_arg_common(args, pos, arg);
 }
 
-int fuse_opt_insert_arg_compat(struct fuse_args *args, int pos,
-			       const char *arg);
-int fuse_opt_insert_arg_compat(struct fuse_args *args, int pos, const char *arg)
-{
-  return fuse_opt_insert_arg_common(args, pos, arg);
-}
-
 static int next_arg(struct fuse_opt_context *ctx, const char *opt)
 {
   if (ctx->argctr + 1 >= ctx->argc) {
@@ -426,6 +419,3 @@ int fuse_opt_parse(struct fuse_args *args, void *data,
   fuse_opt_free_args(&ctx.outargs);
   return res;
 }
-
-/* This symbol version was mistakenly added to the version script */
-FUSE_SYMVER(".symver fuse_opt_insert_arg_compat,fuse_opt_insert_arg@FUSE_2.5");
diff --git a/libfuse/lib/fuse_session.c b/libfuse/lib/fuse_session.c
index 5773ec72..ea6eacc5 100644
--- a/libfuse/lib/fuse_session.c
+++ b/libfuse/lib/fuse_session.c
@@ -8,8 +8,6 @@
 
 #include "fuse_i.h"
 #include "fuse_misc.h"
-#include "fuse_common_compat.h"
-#include "fuse_lowlevel_compat.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -24,7 +22,6 @@ struct fuse_chan
   int fd;
   size_t bufsize;
   void *data;
-  int compat;
 };
 
 struct fuse_session *fuse_session_new(struct fuse_session_ops *op, void *data)
@@ -141,8 +138,7 @@ void *fuse_session_data(struct fuse_session *se)
 }
 
 static struct fuse_chan *fuse_chan_new_common(struct fuse_chan_ops *op, int fd,
-					      size_t bufsize, void *data,
-					      int compat)
+					      size_t bufsize, void *data)
 {
   struct fuse_chan *ch = (struct fuse_chan *) malloc(sizeof(*ch));
   if (ch == NULL) {
@@ -155,7 +151,6 @@ static struct fuse_chan *fuse_chan_new_common(struct fuse_chan_ops *op, int fd,
   ch->fd = fd;
   ch->bufsize = bufsize;
   ch->data = data;
-  ch->compat = compat;
 
   return ch;
 }
@@ -163,14 +158,7 @@ static struct fuse_chan *fuse_chan_new_common(struct fuse_chan_ops *op, int fd,
 struct fuse_chan *fuse_chan_new(struct fuse_chan_ops *op, int fd,
 				size_t bufsize, void *data)
 {
-  return fuse_chan_new_common(op, fd, bufsize, data, 0);
-}
-
-struct fuse_chan *fuse_chan_new_compat24(struct fuse_chan_ops_compat24 *op,
-					 int fd, size_t bufsize, void *data)
-{
-  return fuse_chan_new_common((struct fuse_chan_ops *) op, fd, bufsize,
-                              data, 24);
+  return fuse_chan_new_common(op, fd, bufsize, data);
 }
 
 int fuse_chan_fd(struct fuse_chan *ch)
@@ -203,11 +191,8 @@ struct fuse_session *fuse_chan_session(struct fuse_chan *ch)
 int fuse_chan_recv(struct fuse_chan **chp, char *buf, size_t size)
 {
   struct fuse_chan *ch = *chp;
-  if (ch->compat)
-    return ((struct fuse_chan_ops_compat24 *) &ch->op)
-      ->receive(ch, buf, size);
-  else
-    return ch->op.receive(chp, buf, size);
+
+  return ch->op.receive(chp, buf, size);
 }
 
 int fuse_chan_receive(struct fuse_chan *ch, char *buf, size_t size)
@@ -230,7 +215,3 @@ void fuse_chan_destroy(struct fuse_chan *ch)
     ch->op.destroy(ch);
   free(ch);
 }
-
-#ifndef __FreeBSD__
-FUSE_SYMVER(".symver fuse_chan_new_compat24,fuse_chan_new@FUSE_2.4");
-#endif
diff --git a/libfuse/lib/helper.c b/libfuse/lib/helper.c
index 95b6d18b..c1e6d7f1 100644
--- a/libfuse/lib/helper.c
+++ b/libfuse/lib/helper.c
@@ -11,7 +11,6 @@
 #include "fuse_misc.h"
 #include "fuse_opt.h"
 #include "fuse_lowlevel.h"
-#include "fuse_common_compat.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -260,7 +259,7 @@ fuse_mount_common(const char       *mountpoint_,
         close(fd);
     } while(fd >= 0 && fd <= 2);
 
-  fd = fuse_mount_compat25(mountpoint_, args_);
+  fd = fuse_kern_mount(mountpoint_,args_);
   if(fd == -1)
     return NULL;
 
@@ -299,8 +298,7 @@ struct fuse *fuse_setup_common(int argc, char *argv[],
 			       char **mountpoint,
 			       int *multithreaded,
 			       int *fd,
-			       void *user_data,
-			       int compat)
+			       void *user_data)
 {
   struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
   struct fuse_chan *ch;
@@ -318,7 +316,7 @@ struct fuse *fuse_setup_common(int argc, char *argv[],
     goto err_free;
   }
 
-  fuse = fuse_new_common(ch, &args, op, op_size, user_data, compat);
+  fuse = fuse_new_common(ch, &args, op, op_size, user_data);
   fuse_opt_free_args(&args);
   if (fuse == NULL)
     goto err_unmount;
@@ -350,7 +348,7 @@ struct fuse *fuse_setup(int argc, char *argv[],
 			char **mountpoint, int *multithreaded, void *user_data)
 {
   return fuse_setup_common(argc, argv, op, op_size, mountpoint,
-                           multithreaded, NULL, user_data, 0);
+                           multithreaded, NULL, user_data);
 }
 
 static void fuse_teardown_common(struct fuse *fuse, char *mountpoint)
@@ -370,7 +368,7 @@ void fuse_teardown(struct fuse *fuse, char *mountpoint)
 
 static int fuse_main_common(int argc, char *argv[],
 			    const struct fuse_operations *op, size_t op_size,
-			    void *user_data, int compat)
+			    void *user_data)
 {
   struct fuse *fuse;
   char *mountpoint;
@@ -378,7 +376,7 @@ static int fuse_main_common(int argc, char *argv[],
   int res;
 
   fuse = fuse_setup_common(argc, argv, op, op_size, &mountpoint,
-                           &multithreaded, NULL, user_data, compat);
+                           &multithreaded, NULL, user_data);
   if (fuse == NULL)
     return 1;
 
@@ -397,7 +395,7 @@ static int fuse_main_common(int argc, char *argv[],
 int fuse_main_real(int argc, char *argv[], const struct fuse_operations *op,
 		   size_t op_size, void *user_data)
 {
-  return fuse_main_common(argc, argv, op, op_size, user_data, 0);
+  return fuse_main_common(argc, argv, op, op_size, user_data);
 }
 
 #undef fuse_main
@@ -412,100 +410,3 @@ int fuse_version(void)
 {
   return FUSE_VERSION;
 }
-
-#include "fuse_compat.h"
-
-#if !defined(__FreeBSD__) && !defined(__NetBSD__)
-
-struct fuse *fuse_setup_compat22(int argc, char *argv[],
-				 const struct fuse_operations_compat22 *op,
-				 size_t op_size, char **mountpoint,
-				 int *multithreaded, int *fd)
-{
-  return fuse_setup_common(argc, argv, (struct fuse_operations *) op,
-                           op_size, mountpoint, multithreaded, fd, NULL,
-                           22);
-}
-
-struct fuse *fuse_setup_compat2(int argc, char *argv[],
-				const struct fuse_operations_compat2 *op,
-				char **mountpoint, int *multithreaded,
-				int *fd)
-{
-  return fuse_setup_common(argc, argv, (struct fuse_operations *) op,
-                           sizeof(struct fuse_operations_compat2),
-                           mountpoint, multithreaded, fd, NULL, 21);
-}
-
-int fuse_main_real_compat22(int argc, char *argv[],
-			    const struct fuse_operations_compat22 *op,
-			    size_t op_size)
-{
-  return fuse_main_common(argc, argv, (struct fuse_operations *) op,
-                          op_size, NULL, 22);
-}
-
-void fuse_main_compat1(int argc, char *argv[],
-		       const struct fuse_operations_compat1 *op)
-{
-  fuse_main_common(argc, argv, (struct fuse_operations *) op,
-                   sizeof(struct fuse_operations_compat1), NULL, 11);
-}
-
-int fuse_main_compat2(int argc, char *argv[],
-		      const struct fuse_operations_compat2 *op)
-{
-  return fuse_main_common(argc, argv, (struct fuse_operations *) op,
-                          sizeof(struct fuse_operations_compat2), NULL,
-                          21);
-}
-
-int fuse_mount_compat1(const char *mountpoint, const char *args[])
-{
-  /* just ignore mount args for now */
-  (void) args;
-  return fuse_mount_compat22(mountpoint, NULL);
-}
-
-FUSE_SYMVER(".symver fuse_setup_compat2,__fuse_setup@");
-FUSE_SYMVER(".symver fuse_setup_compat22,fuse_setup@FUSE_2.2");
-FUSE_SYMVER(".symver fuse_teardown,__fuse_teardown@");
-FUSE_SYMVER(".symver fuse_main_compat2,fuse_main@");
-FUSE_SYMVER(".symver fuse_main_real_compat22,fuse_main_real@FUSE_2.2");
-
-#endif /* __FreeBSD__ || __NetBSD__ */
-
-
-struct fuse *fuse_setup_compat25(int argc, char *argv[],
-				 const struct fuse_operations_compat25 *op,
-				 size_t op_size, char **mountpoint,
-				 int *multithreaded, int *fd)
-{
-  return fuse_setup_common(argc, argv, (struct fuse_operations *) op,
-                           op_size, mountpoint, multithreaded, fd, NULL,
-                           25);
-}
-
-int fuse_main_real_compat25(int argc, char *argv[],
-			    const struct fuse_operations_compat25 *op,
-			    size_t op_size)
-{
-  return fuse_main_common(argc, argv, (struct fuse_operations *) op,
-                          op_size, NULL, 25);
-}
-
-void fuse_teardown_compat22(struct fuse *fuse, int fd, char *mountpoint)
-{
-  (void) fd;
-  fuse_teardown_common(fuse, mountpoint);
-}
-
-int fuse_mount_compat25(const char *mountpoint, struct fuse_args *args)
-{
-  return fuse_kern_mount(mountpoint, args);
-}
-
-FUSE_SYMVER(".symver fuse_setup_compat25,fuse_setup@FUSE_2.5");
-FUSE_SYMVER(".symver fuse_teardown_compat22,fuse_teardown@FUSE_2.2");
-FUSE_SYMVER(".symver fuse_main_real_compat25,fuse_main_real@FUSE_2.5");
-FUSE_SYMVER(".symver fuse_mount_compat25,fuse_mount@FUSE_2.5");
diff --git a/libfuse/lib/mount_bsd.c b/libfuse/lib/mount_bsd.c
index 23747bc4..82e7b6c7 100644
--- a/libfuse/lib/mount_bsd.c
+++ b/libfuse/lib/mount_bsd.c
@@ -145,53 +145,6 @@ static int fuse_mount_opt_proc(void *data, const char *arg, int key,
   return 1;
 }
 
-void fuse_unmount_compat22(const char *mountpoint)
-{
-  char dev[128];
-  char *ssc, *umount_cmd;
-  FILE *sf;
-  int rv;
-  char seekscript[] =
-    /* error message is annoying in help output */
-    "exec 2>/dev/null; "
-    "/usr/bin/fstat " FUSE_DEV_TRUNK "* | "
-    "/usr/bin/awk 'BEGIN{ getline; if (! ($3 == \"PID\" && $10 == \"NAME\")) exit 1; }; "
-    "              { if ($3 == %d) print $10; }' | "
-    "/usr/bin/sort | "
-    "/usr/bin/uniq | "
-    "/usr/bin/awk '{ i += 1; if (i > 1){ exit 1; }; printf; }; END{ if (i == 0) exit 1; }'";
-
-  (void) mountpoint;
-
-  /*
-   * If we don't know the fd, we have to resort to the scripted
-   * solution -- iterating over the fd-s is unpractical, as we
-   * don't know how many of open files we have. (This could be
-   * looked up in procfs -- however, that's optional on FBSD; or
-   * read out from the kmem -- however, that's bound to
-   * privileges (in fact, that's what happens when we call the
-   * setgid kmem fstat(1) utility).
-   */
-  if (asprintf(&ssc, seekscript, getpid()) == -1)
-    return;
-
-  errno = 0;
-  sf = popen(ssc, "r");
-  free(ssc);
-  if (! sf)
-    return;
-
-  fgets(dev, sizeof(dev), sf);
-  rv = pclose(sf);
-  if (rv)
-    return;
-
-  if (asprintf(&umount_cmd, "/sbin/umount %s", dev) == -1)
-    return;
-  system(umount_cmd);
-  free(umount_cmd);
-}
-
 static void do_unmount(char *dev, int fd)
 {
   char device_path[SPECNAMELEN + 12];
@@ -387,5 +340,3 @@ int fuse_kern_mount(const char *mountpoint, struct fuse_args *args)
   free(mo.kernel_opts);
   return res;
 }
-
-FUSE_SYMVER(".symver fuse_unmount_compat22,fuse_unmount@FUSE_2.2");
diff --git a/libfuse/lib/mount_generic.c b/libfuse/lib/mount_generic.c
index 1c4f5c63..249ef74f 100644
--- a/libfuse/lib/mount_generic.c
+++ b/libfuse/lib/mount_generic.c
@@ -10,7 +10,6 @@
 #include "fuse_i.h"
 #include "fuse_misc.h"
 #include "fuse_opt.h"
-#include "fuse_common_compat.h"
 #include "mount_util.h"
 
 #include <stdio.h>
@@ -343,11 +342,6 @@ void fuse_kern_unmount(const char *mountpoint, int fd)
   waitpid(pid, NULL, 0);
 }
 
-void fuse_unmount_compat22(const char *mountpoint)
-{
-  fuse_kern_unmount(mountpoint, -1);
-}
-
 static int fuse_mount_fusermount(const char *mountpoint, struct mount_opts *mo,
                                  const char *opts, int quiet)
 {
@@ -418,15 +412,6 @@ static int fuse_mount_fusermount(const char *mountpoint, struct mount_opts *mo,
   return rv;
 }
 
-int fuse_mount_compat22(const char *mountpoint, const char *opts)
-{
-  struct mount_opts mo;
-  memset(&mo, 0, sizeof(mo));
-  mo.flags = MS_NOSUID | MS_NODEV;
-
-  return fuse_mount_fusermount(mountpoint, &mo, opts, 0);
-}
-
 static int fuse_mount_sys(const char *mnt, struct mount_opts *mo,
 			  const char *mnt_opts)
 {
@@ -641,6 +626,3 @@ int fuse_kern_mount(const char *mountpoint, struct fuse_args *args)
   free(mo.mtab_opts);
   return res;
 }
-
-FUSE_SYMVER(".symver fuse_mount_compat22,fuse_mount@FUSE_2.2");
-FUSE_SYMVER(".symver fuse_unmount_compat22,fuse_unmount@FUSE_2.2");