In May 2026, polkadot-js/apps delivered a targeted stability improvement by removing unreachable Dwellir Tunisia endpoints from network configurations across Polkadot, Kusama, and Westend. This preventive change reduced CI noise and stabilized test results by eliminating non-functional services that caused nightly CI failures since January 2026 (tracked via #12112). The change is committed as 472bcbc7768e13973794180b6a82265b96bcc2bf with message "Remove Dwellir Tunisia endpoints (down since Jan 2026) (#12246)", and involved removing 11 unreachable endpoints across relay and system configurations.

February 2025 (2025-02) highlights: Delivered integration of Polkadot ecosystem tests as a Git submodule in paritytech/ahm-dryrun, enabling external test infrastructure management and improved test coverage. The submodule is configured to use the ahm-tests branch and located at the polkadot-ecosystem-tests path, simplifying downstream maintenance and updates of the test suite. Commit reference captured for traceability: 3c5b82fba76a63212042a0606da3ec075698c8ba with message 'Add PET repo as submodule (`ahm-tests` branch) (#1)'. No major bugs reported or fixed this month.

December 2024 monthly summary for polkadot-fellows/runtimes focusing on the People Identity Management cross-chain capabilities. The month centered on expanding test coverage for identity-related actions across multiple chains and validating cross-chain (XCM) robustness, with a dedicated commit enhancing integration tests.

In October 2024, delivered a major benchmarking framework upgrade for paritytech/polkadot-sdk, migrating to frame_benchmarking v2, refactoring pallet-grandpa benchmarks to align with the new API, and adding a dedicated documentation file to reflect changes and usage. These changes improve benchmarking reliability, reduce maintenance overhead, and support data-driven performance decisions across the codebase.