# Deprecated Options

These are old, deprecated options which may no longer have any
function or have been replaced. **They should not be used.**

* **allow_other**: mergerfs v2.35.0 and above sets this FUSE option
  automatically if running as root.
* **async_read**: Use `async-read=true`.
* **atomic_o_trunc**: Does nothing.
* **big_writes**: Does nothing.
* **attr_timeout**: Use [cache.attr](cache.md).
* **auto_cache**: Use [cache.files=auto-full](cache.md).
* **direct_io**: Use [cache.files=off](cache.md).
* **entry_timeout**: Use [cache.entry](cache.md).
* **hard_remove**: Does nothing.
* **kernel_cache**: Use [cache.files=full](cache.md).
* **negative_entry**: Use [cache.negative-entry](cache.md).
* **nonempty**: Does nothing.
* **splice_move**: Does nothing.
* **splice_read**: Does nothing.
* **splice_write**: Does nothing.
* **sync_read**: Use `async-read=false`.
* **use_ino**: Use [inodecalc](inodecalc.md).