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cberner merged 1 commit into from
Feb 14, 2026
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Update 0.17 unreleased changelog notes #649

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29 changes: 24 additions & 5 deletions CHANGELOG.md
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## 0.17 - Unreleased

* Change integers to newtypes in various public APIs
Major changes:
* Change many integer-based public API parameters to strongly-typed newtypes and bitflags.
This breaking changes affects many of the methods on `Filesystem`
* Change `Filesystem` trait methods to use `&self`, and require mounted filesystems to be `Send + Sync + 'static`
* Improve typed error handling across request/reply APIs
* Replace `Vec<MountOption>` mount APIs with a structured `Config` API, including ACL option handling
* Feature flags `abi-7-xx` are now ignored and will be removed in 0.18, with compatibility checks moved to runtime behavior
* Remove the old ABI-specific feature-flag surface (`abi-7-9` through `abi-7-19`, plus tooling/docs/examples references)
* Add support for multiple event loops per session, which can be enabled via `Config::n_threads`
* Add experimental async API (`AsyncFilesystem`)

Minor changes:
* Rename `BackgroundSession::join` to `umount_and_join`, returning `io::Result<()>` instead of panicking
* Add `FUSE_DEV_IOC_CLONE` support and improve passthrough descriptor handling (`ReplyCreate`, `ReplyOpen`, `BackingId`)
* Improve passthrough descriptor handling (`ReplyCreate`, `ReplyOpen`, `BackingId`)
* Add `FileType` conversion from std `FileType`
* Rename `BackgroundSession::join` to `umount_and_join`
and change it to return `io::Result<()>` instead of panicking
* Add option to explicitly choose `libfuse2` or `libfuse3`, prefer `libfuse3` by default
* Support building without libfuse on BSD
* Remove remaining `osxfuse` support and improve `macfuse` compatibility
* The path to the `fusermount` binary can be specified with the `FUSERMOUNT_PATH` environment variable
* `allow_root` or `allow_other` must be specified when using `auto_unmount`
* feature flags `abi-7-xx` are ignored and will be removed in 0.18.
* `allow_root` or `allow_other` must be enabled when using `auto_unmount`
* Update and expand documentation

Internal changes:
* Improve Linux/BSD/macOS test coverage by migrating mount tests to `fuser-tests` and expanding CI
* Rework session lifecycle internals (handshake/session startup, destroy ordering, and unmount error propagation)

## 0.16.0 - 2025-09-12
* Add support for passthrough file descriptors
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