October 26, 2025: This Week in OpenDAL

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This weekly update is generated by LLMs. You're welcome to join our Discord for in-depth discussions.

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Overall Activity Summary

The Apache OpenDAL repository has experienced robust activity this week, with significant contributions across pull requests, issues, and discussions. Key themes include refactoring efforts, feature enhancements, repository restructuring, and improvements to bindings. Contributors have been actively collaborating on improving the project’s usability, performance, and accessibility for broader adoption.

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Key Ongoing Projects

• Python Bindings Enhancements:

  • feat(bindings/python)!: Generate stubs for Operator overloads and Scheme #6729 by @chitralverma introduces stub generation for Python bindings, improving type safety and documentation.
  • feat(bindings/python)!: Add stubs for remaining types #6720 and feat(bindings/python)!: Stubs fix for operator and __version__ #6728 by @chitralverma focus on fixing Python stubs and enhancing Python bindings with better type definitions and linting.

• Refactoring Services:

  • Tracking issues of migrating adapter based services #5739: Migration of services from adapter-based implementations to directly implementing the Access trait has been completed. Contributors like @koushiro, @NoxTav, and @kingsword09 have been instrumental in this effort.

• Repository Restructuring:

  • Tracking Issue: Move oli/ofs out; remove oay #6689: Efforts to move oli and ofs binaries to standalone repositories are ongoing. @PsiACE and @Xuanwo are leading the initiative, with multiple related PRs addressing code migration and cleanup.

• Capability Override Layer:

  • RFC-6707: Capability Override Layer #6707 by @Xuanwo introduces a new RFC for a CapabilityOverrideLayer, which aims to replace configurations like delete_max_size and enable_versioning with a more flexible layer-based approach.

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Priority Items

• new feature: Add all layers in Java binding #6738 by @kesavkolla: Request to add all layers in Java bindings for compatibility purposes. This enhancement will improve the Java API and needs attention.
• Tracking issue: Refactor services to use the backend.rs and core.rs convention #5702: Refactoring services to adopt the backend.rs and core.rs convention is nearing completion. Final reviews and testing are required for services like HDFS Native.
• Tracking Issue: Move oli/ofs out; remove oay #6689: Repository restructuring tasks, including moving binaries (oli and ofs) to standalone repositories and removing oay, require further progress to complete the migration and cleanup.

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Notable Discussions

• [RESULT] [VOTE] Split out oli as a standalone repo (apache/opendal-oli) #6687: @PsiACE announced the successful vote to split oli into a standalone repository, with unanimous support from the community.
• Let's try opendal's ML Automation! #6710: @Xuanwo initiated a discussion to test OpenDAL's ML automation, aiming to streamline communication and updates.
• Tracking issues of RFC-6707: Capability Override Layer #6708: @Xuanwo opened a tracking issue for the new RFC-6707 on the CapabilityOverrideLayer, inviting feedback and collaboration.

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Emerging Trends

• Repository Restructuring: The community is actively working on splitting the OpenDAL repository into multiple sub-repositories to improve focus, modularity, and development speed.
• Enhanced Bindings: Python and Java bindings are receiving significant attention, with new features and improvements to make OpenDAL more accessible to developers in diverse programming languages.
• Refactoring for Maintainability: The migration of services to directly implement the Access trait and the adoption of the backend.rs and core.rs convention are making the codebase cleaner and more maintainable.

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Good First Issues

• Tracking issues of OpenDAL wasm32-unknown-unknown target support #3803: Add support for more services under the wasm32-unknown-unknown target for WebAssembly compatibility. This is a great opportunity for contributors to explore WASM and OpenDAL services.
• servcices/vercel_artifacts: Tracking issues of not passed test cases #2198: Address test failures for services/vercel_artifacts by implementing stat, delete, and create_dir support, as well as investigating range support issues.
• new feature: Allow s3 service to configure assume role's tags #4975: Allow S3 service to configure assume role's tags. This involves adding support for tags in reqsign first.
• Implement Write Returns Metadata for all services #5693: Implement Write Returns Metadata for all services by extracting metadata from write responses.
• new feature: publish the source and lock files for binaries (oli, oay...) #6198: Publish source and lock files for binaries like oli and oay to facilitate packaging for platforms like NixOS.

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Thank you to all contributors for your hard work and dedication! Let’s continue building and improving OpenDAL together!