April 2026: Delivered Hydrodynamic System Enhancements in gz-sim with bug fixes, new functionality, and refactoring; added simulation reset and added-mass guards; expanded tests; updated docs to improve accuracy, stability, and cross-engine compatibility.

March 2026: Gazebo simulation fidelity improved through graded buoyancy enhancements. Implemented robust SDF parsing for graded buoyancy, fixed division-by-zero in buoyancy computations, and extended shape support to cylinder, capsule, ellipsoid, and cone, enabling broader use cases and more accurate fluid dynamics simulations in gz-sim.

September 2025 (2025-09) monthly summary for gazebosim/gz-sim focusing on documentation improvements and release readiness. Key outcomes include updating tutorial links to gz-sim10 across tutorials to ensure consistency and forward-compatibility, and standardizing versioning for the 10.0.0 release by removing the pre2 suffix, aligning with release goals. No major bugs fixed were recorded in this period based on the provided data. Technologies demonstrated include documentation engineering, release engineering, and semantic versioning with traceability to commits.

February 2025: Release readiness and documentation for two Gazebo components. Completed version bumps, changelog updates, and release notes preparation for sdformat 15.2.0 and gz-sim 9.1.0. Consolidated features and fixes from multiple PRs into official release notes, enabling streamlined upgrades and API compatibility checks.

December 2024 monthly work summary: Maintained stability while modernizing APIs and cleaning up deprecated usage across GazeboSim and SDFormat. Focused on API consistency, documentation, and migration-ready changes to reduce technical debt and position the codebase for future features. No user-facing feature delivered this month; however, substantial backend improvements enhance reliability and developer productivity.