August 2025 monthly summary for the plotly.py repo (plotly/plotly.py). Key features delivered focused on Kaleido export; major reliability improvements to image dimension handling and associated tests; and code quality enhancements. Key features delivered: - Kaleido export: Robust and accurate image dimension calculation with defaults when layout/template properties are missing; refactor to _kaleido.py for safer access and improved readability, aligning behavior with Kaleido logic. - Kaleido export: Expanded test coverage for width/height handling and defaults to verify argument priority, default behavior when dimensions are missing, and overall test suite improvements. Major bugs fixed (through hardened defaults and safer access): - Fixed edge-case dimension calculation failures by introducing safe defaults and explicit dict.get usage; ensured exported figure dimensions align with Kaleido logic, reducing mis-sized exports. Overall impact and accomplishments: - Increased reliability and correctness of image exports in plotly.py, reducing user-facing export errors and visual inconsistencies. - Improved maintainability and clarity through code refactors, stronger defaults, and enhanced test coverage. Technologies/skills demonstrated: - Python refactoring and safer access patterns (including dict.get defaults). - Test-driven development and test suite enhancements (width/height tests and defaults). - Code quality improvements (ruff formatting) and alignment with Kaleido integration.

February 2025: Decommissioned Mapbox integration in plotly.js to simplify the feature surface, reduce ongoing maintenance, and improve overall stability. Removed Mapbox-related tests to prevent regressions and shorten CI cycles. This deprecation aligns with roadmap priorities and clears the path for focus on core plotting features and other supported mappings.