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Object Storage Service:Version 1.91.9

Last Updated:Mar 20, 2026

ossfs version 1.91.9 includes new OS support, an inode reporting fix, a behavior change to the default log level, and mounting performance improvements.

New features

  • Alibaba Cloud Linux 4 support. ossfs now runs on Alibaba Cloud Linux 4. Previously, Alibaba Cloud Linux 4 was not a supported operating system.

  • Non-zero inode count from df -i. Running df -i on an ossfs mount target now returns a non-zero inode count. Previously, the command returned 0, which caused some tools to misreport the filesystem state.

Bug fixes and stability improvements

  • Stability improvements and bug fixes.

Behavior changes

  • Default log level changed from critical to error. ossfs now logs at error level by default. If your monitoring or alerting pipeline filters on the previous default (critical), update your log level filters to include error.

Performance improvements

  • Optimized bucket-check requests during mounting. The requests ossfs sends to verify bucket access at mount time have been reduced.