= Changelog


v1.0RC1::

This is the WinFsp 2017 Release Candidate 1. It has been tested extensively in a variety of scenarios for stability and correct file system semantics. Some of the more important changes:

- API has been polished and finalized.
- Extensively tested against multiple test suites including Microsoft's IfsTest.
- WinFsp I/O Queues (the fundamental WinFsp IPC mechanism) have been improved to work similar to I/O Completion Ports.
- Opportunistic locks have been implemented.
- File system statistics have been implemented.
- Sharing a (disk) file system over the network is supported.
- Case insensitive file systems are supported.
- Directories are supported as mount points.
- Access checks are performed correctly in the absense of the traverse privilege.
- Access checks are performed correctly in the presence of the backup and restore privileges.


v0.17::

This release brings support for named streams.

- Named streams (or alternate data streams) are additional streams of data within a file. When a file gets opened the main (default, unnamed) data stream of a file gets accessed. However NTFS (and now WinFsp) supports multiple data streams per file accessible using the `filename:streamname` syntax.
- WinFsp handles a lot of the hairy details regarding named streams, including sharing checks, pending delete checks, conflicts between the main and named streams, etc.
- User mode file systems that wish to support named streams must set the `FSP_FSCTL_VOLUME_PARAMS::NamedStreams` flag and must also be prepared to handle named streams on `Create`, `Cleanup`, etc. They must also implement the new `FSP_FILE_SYSTEM_INTERFACE::GetStreamInfo` operation. For more information on how to correctly handle named streams refer to the MEMFS sample.


v0.16::

This release brings support for reparse points and symbolic links as well as other minor changes.

- Reparse points are a general mechanism for attaching special behavior to files. Symbolic links in Windows are implemented as reparse points. WinFsp supports any kind of reparse point including symbolic links.
- The WinFsp FUSE implementation supports symbolic links. It also supports POSIX special files (FIFO, SOCK, CHR, BLK) as NFS reparse points (see https://msdn.microsoft.com/en-us/library/dn617178.aspx).
- User mode file systems that wish to support reparse points will have to set the `FSP_FSCTL_VOLUME_PARAMS::ReparsePoints` flag and implement the `FSP_FILE_SYSTEM_INTERFACE` methods `ResolveReparsePoints`, `GetReparsePoint`, `SetReparsePoint`, `DeleteReparsePoint`. More information in this blog article: http://www.secfs.net/winfsp/blog/files/reparse-points-symlinks-api-changes.html
- The installation now includes public symbol files for all WinFsp components shipped.


v0.15::

This is a minor release that brings support for Windows 7 and 32-bit OS'es.

- Fixes a number of issues for Windows 7. Windows 7 is now officially supported.
- Fixes a number of issues with the 32-bit FSD and user mode components. 32-bit versions of Windows are now officially supported.


v0.14::

This release includes support for file systems protected by credentials.

- WinFsp now supports file systems that require username/password to be unlocked (e.g. sshfs/secfs). Such file systems must add a DWORD registry value with name "Credentials" and value 1 under their WinFsp.Launcher service entry. The WinFsp network provider will then prompt for credentials using the `CredUIPromptForWindowsCredentials` API. Credentials can optionally be saved with the Windows Credential Manager.
- WinFsp-FUSE now uses the S-1-0-65534 <--> 65534 mapping for unmapped SID/UID's. The Anonymous SID mapping from the previous release had security issues.


v0.13::

This release includes a Cygwin package, an API change and some other minor changes:

- New Cygwin package includes `cygfuse-2.8.dll` and `libfuse-2.8.dll.a` for easy use in the Cygwin environment. This is currently offered as a separate download.
- Minor but breaking API change: `SetFileSize`/`SetAllocationSize` have been consolidated. Please refer to the documentation for a description of the changes.
- File system drive symbolic links (`DefineDosDeviceW`) now automatically cleaned up even if user mode file system crashes or is terminated forcefully.
- WinFsp-FUSE now maps unmapped UID's to the Anonymous SID (S-1-5-7). See: https://cygwin.com/ml/cygwin/2016-06/msg00359.html


v0.12::

Prior changes are not recorded in this Changelog.
