March 2026 monthly summary for mozilla-releng/fxci-config focusing on feature delivery, stability improvements, and readiness for enhanced observability. The work centers on Gecko-1 decision pool testing with headless images, targeted configuration cleanup, and establishing data collection groundwork for future logging enhancements.

February 2026 monthly summary: Delivered a policy-aligned feature in fxci-config that enables untrusted pull requests to participate in dependency signing by updating grants.yml to broaden job permissions, while preserving security constraints on private artifact scopes. This supports the shift toward public PRs and reduces friction for external contributions without increasing risk to signing integrity. No major bugs fixed this month; primary impact is streamlined governance and faster collaboration on dependency signing.

Month: 2026-01 — Consolidated improvements across fxci-config and probe-scraper, delivering efficiency, observability, and governance enhancements that drive performance, reliability, and faster delivery cycles. Key outcomes include optimized Gecko-1 decision task latency under peak loads, improved startup diagnostics and reduced log noise, automated dependency maintenance, and strengthened CI/build permissions, all while broadening open contributions in a controlled manner. The initiatives reflect a strong mix of resource optimization, instrumentation, automation, and policy clarity that deliver measurable business value.

December 2025: Mozharness Performance Metrics Framework rollout in Treeherder — introduced a dedicated mozharness metrics framework to enable collection and analysis of performance metrics, with instrumentation across relevant workflows. After retesting, refined metrics handling by removing the allowlist entry in perf.py to improve data accuracy. This work delivers improved visibility into build performance, supports data-driven optimization, and strengthens reliability of metric dashboards for cross-team stakeholders.

November 2025 monthly summary focusing on features delivered, bugs fixed, and value delivered across two repositories (fxci-config and translations). The work targeted translation workflow automation, configuration correctness, and flexible database upload behavior, delivering tangible business value and strengthening pipeline reliability.

Month 2025-10: Focused on expanding regional coverage and throughput for the fxci-config worker pool. Delivered B-Linux-Medium-GCP: added northamerica-northeast1 region and increased gecko-3 pool capacity to 200, aligning with gecko-1, enabling support for new regions and higher throughput. No major bugs reported this period. Impact: broader regional support, improved scalability, and consistent capacity planning across the fleet. Technologies demonstrated: cloud region configuration, capacity planning, and Git-based infrastructure changes.

September 2025 focused on reliability, scalability, and maintainability of build workflows across fxci-config and translations. Delivered modular grants configuration with directory-based loading and translation-scope separation, removed obsolete GPU worker images, expanded OS-integrations test coverage, and refreshed dependencies to align with latest taskgraph tooling. Demonstrated strong cross-repo collaboration, improved test coverage, and reduced operational risk, enabling faster feature delivery and safer deployments.

Monthly performance summary for 2025-08: Delivered targeted improvements in artifact management and dependency updates for translations, and resolved a path relocation bug in treeherder's intermittents commenter. These changes reduce storage usage, improve build stability, and enhance cross-platform compatibility, demonstrating strong Python scripting, CI automation, and package management capabilities with clear business value in efficiency and reliability.

2025-07 monthly summary: Delivered automation and reliability improvements across fxci-config and translations repositories, enabling on-demand test re-runs, clearer configurations, and cost-aware artifact and data management. Key features delivered include an Os-integration cron hook for periodic tests, translations bucket naming clarity, automated artifact upload with CI/CD workflow enhancements, and selective archiving of corpora to GCS. Major bug fixed: translations integration tests mirroring issue resolved. Overall impact: reduced manual toil, faster feedback loops, clearer deployment/configuration practices, and lower storage costs. Technologies/skills demonstrated: CI/CD automation, Docker/mirroring considerations, Google Cloud Storage, artifact management, and configuration refactor for clarity.

June 2025 performance summary: Delivered substantive automation and reliability improvements across gecko-dev release tooling and fxci-config workflows, accelerating release cycles while strengthening pipeline resilience and translation support. Key work included expanding Landoscript-based release automation, modularizing merge automation with scriptworker payload builders, enabling fetch-version-from for beta merges, enhancing translations workflow in beetmover, and hardening build decisions with network retry and up-to-date dependencies and templates. These changes reduced manual toil, clarified configuration, and positioned the platform for faster, safer releases.

May 2025 focused on delivering secure, scalable CI/CD tooling improvements, GPU-enabled workloads, and stable build/training pipelines. Key outcomes include strengthened access control for build environments, enhanced tooling for TCYML handling and GitHub integration, robust Docker GPU support, and a reliable Ubuntu image baseline. These changes reduce manual maintenance, improve reproducibility, and accelerate release cycles while lowering operational risk across critical workflows.

April 2025 monthly summary: Delivered significant improvements to CI reliability, GPU workflows, and governance across translations and fxci-config repositories. Key features delivered include: 1) CI/build reliability and artifact workflow improvements in mozilla/translations by removing unnecessary tool installs in the kenlm build script, upgrading taskgraph to 14.1.1, and enabling artifact collection/diffs tooling for taskgraph reviews; 2) GPU pipeline containerization and compatibility updates in translations, switching GPU workers to generic-worker, containerizing GPU tasks for newer Ubuntu releases, ensuring CUDA toolkits are available in containers, and enhancing artifact handling for GPU pipelines; 3) GPU-accelerated translations enablement in fxci-config by updating Ubuntu headless image to 24.04 with the latest generic-worker, enabling new volume artifact type and OOM monitoring; 4) Lando scripting integration, production deployment, and governance across fxci-config, including production landoscript clients, granting scopes for landoscript repos and actions, aligning lando_repo naming, and fixing scopes for production landoscript workers.

Month 2025-03: Focused on increasing CI/CD stability and translation pipeline resilience. Delivered deterministic worker pool configuration for fxci-config to produce stable task graph diffs, and cleaned up obsolete configurations (removing non-d2g CPU worker entries). Unblocked large training runs by removing queueInactivityTimeout, and added an automatic retry mechanism for translation tasks when GPUs are unavailable (exits with code 9002) to preserve work. These changes reduce flaky builds, prevent lost work, and improve throughput and reliability across CI/CD and GPU pipelines.

February 2025 achievements: Delivered build system modernization (taskgraph 13.0.0) with Poetry-based test tooling, enabling cost-efficient builds and streamlined dependency management. Implemented Chain of Trust for artifact security, reducing unnecessary Docker image rebuilds. Expanded ML-capable translation throughput by adding GPU-enabled translation worker pools and updating base images for ongoing operations. Enhanced developer experience and CI reliability with a new Lando scriptworker client for development and a Try-Comm-Central feature flag, plus standardized worker pools with minCapacity and D2G defaults for consistent capacity. Fixed stability issues including a gpustat install workaround on Ubuntu 22.04 and Authenticode signing format typos, and aligned signing infrastructure to prevent breakages in releases.

January 2025 summary: Focused on reliability, efficiency, and production-readiness across translation pipelines, CI tooling, testing environments, and automated signing. Delivered targeted improvements to translation worker pools, expanded testing and staging capabilities, upgraded CI tooling, fixed packaging for CUDA toolkits, and unified production signing across multiple repos using Google Cloud Autograph. These changes improved stability, reduced costs, and enabled safer, faster deployments.

December 2024 monthly recap focused on delivering business-value through automation, stability, and performance improvements across two repositories: mozilla-releng/fxci-config and mozilla/translations.

November 2024 monthly summary focused on stabilizing translation pipelines, delivering CI reliability improvements, and simplifying build configurations across the fxci-config and translations repositories. Key work includes upgrading the D2G translation infrastructure to Ubuntu 24.04 headless CI, removing unused translation images/pools to cut maintenance burden, reverting problematic code-review production environment changes, and replacing Hunspell with cyhunspell to streamline builds. These efforts reduced toil, accelerated feedback loops, and increased predictability in translation workflows across teams.

October 2024 focused on restoring VPN production task throughput in fxci-config by implementing a targeted permissions change. Delivered a temporary grant that allows Level 3 VPN repository to create tasks with create-task:highest:scriptworker-k8s scopes, enabling Level 1 fake-prod beetmover workers to process tasks again. This short-term workaround reduced downtime and maintained production continuity while a long-term fix is developed. The change adheres to least-privilege principles and is documented for revocation when a permanent solution is in place. No customer-facing functionality was changed.