
Iain Launchbury engineered and maintained the BSData/wh40k-10e repository, delivering over 60 features and resolving more than 120 bugs across 16 months. He focused on game data modeling, balance, and validation, using XML and YAML to structure and update complex rulesets and unit profiles. Iain implemented continuous integration workflows with GitHub Actions, automated data validation, and streamlined release processes to ensure accuracy and reliability. His work included codex expansions, catalogue refactors, and UI improvements, all aimed at improving gameplay fidelity and user experience. The depth of his contributions ensured robust, scalable data management and reduced support overhead for maintainers.

February 2026 monthly summary for BSData/wh40k-10e highlighting key features delivered, major bugs fixed, and the impact on gameplay balance, data accuracy, and developer velocity.
February 2026 monthly summary for BSData/wh40k-10e highlighting key features delivered, major bugs fixed, and the impact on gameplay balance, data accuracy, and developer velocity.
January 2026 (2026-01) focused on stabilizing core gameplay, expanding asset fidelity, and accelerating content delivery for BSData/wh40k-10e. Delivered batch-style fixes across Necron and Chaos, updated assets, introduced new features, and refined release workflows to improve cadence and reduce regressions. Result: improved playability, asset accuracy, and UI/API support for ability linking across factions.
January 2026 (2026-01) focused on stabilizing core gameplay, expanding asset fidelity, and accelerating content delivery for BSData/wh40k-10e. Delivered batch-style fixes across Necron and Chaos, updated assets, introduced new features, and refined release workflows to improve cadence and reduce regressions. Result: improved playability, asset accuracy, and UI/API support for ability linking across factions.
Month: 2025-12 | BSData/wh40k-10e release focused on delivering new content updates, rule adjustments, and stability improvements. Key features include the Grotmas 2025 update and the MFM 20251210 batch update, plus a movement change for Gravis Veteran (5 inches). Major bug work included rubric change fixes and applying Errata 20251210, with broad fixes for issues 5910, 6009, 6038, 6037, and 6091 across the batch. Overall impact: improved rule accuracy, data integrity, and release readiness, supporting better gameplay experience and compliance with official updates. Technologies/Skills demonstrated: disciplined Git-driven batch updates, data-driven content management, and robust bug triage and resolution across multiple commits.
Month: 2025-12 | BSData/wh40k-10e release focused on delivering new content updates, rule adjustments, and stability improvements. Key features include the Grotmas 2025 update and the MFM 20251210 batch update, plus a movement change for Gravis Veteran (5 inches). Major bug work included rubric change fixes and applying Errata 20251210, with broad fixes for issues 5910, 6009, 6038, 6037, and 6091 across the batch. Overall impact: improved rule accuracy, data integrity, and release readiness, supporting better gameplay experience and compliance with official updates. Technologies/Skills demonstrated: disciplined Git-driven batch updates, data-driven content management, and robust bug triage and resolution across multiple commits.
November 2025: Implemented a broad set of catalog updates and quality-of-life improvements for BSData/wh40k-10e, focusing on data integrity, balance, and user guidance. Delivered feature-rich catalogue enhancements, tightened constraints and updated links to reflect current models, while adding validation to Crusade detachments and enforcing campaign selection. These changes reduce drafting errors, improve balance options, and prepare the catalog for ongoing expansion.
November 2025: Implemented a broad set of catalog updates and quality-of-life improvements for BSData/wh40k-10e, focusing on data integrity, balance, and user guidance. Delivered feature-rich catalogue enhancements, tightened constraints and updated links to reflect current models, while adding validation to Crusade detachments and enforcing campaign selection. These changes reduce drafting errors, improve balance options, and prepare the catalog for ongoing expansion.
October 2025 for BSData/wh40k-10e focused on delivering new content, stabilizing core data, and expanding gameplay options while improving data integrity and user experience. Highlights include the Legends roster reinstatement, expansion of Kill Team content, and a broad bug-fix pass across profiles and catalogue, culminating in more robust Crusade support and points handling. The work delivers tangible business value through richer rosters, reliable data, and improved performance for end users and contributors.
October 2025 for BSData/wh40k-10e focused on delivering new content, stabilizing core data, and expanding gameplay options while improving data integrity and user experience. Highlights include the Legends roster reinstatement, expansion of Kill Team content, and a broad bug-fix pass across profiles and catalogue, culminating in more robust Crusade support and points handling. The work delivers tangible business value through richer rosters, reliable data, and improved performance for end users and contributors.
September 2025 summary for BSData/wh40k-10e: Focused on stabilizing core gameplay, improving data integrity, and delivering targeted feature updates. Delivered critical bug fixes, data updates, and UI improvements that strengthen release quality and user trust while enabling faster future iterations.
September 2025 summary for BSData/wh40k-10e: Focused on stabilizing core gameplay, improving data integrity, and delivering targeted feature updates. Delivered critical bug fixes, data updates, and UI improvements that strengthen release quality and user trust while enabling faster future iterations.
August 2025 performance summary for BSData/wh40k-10e focused on delivering balance updates, data corrections, and codex expansions across Chaos Knights, Death Guard, Thousand Sons, and Leagues of Votann. Key work targeted data integrity, rule interactions, and user-facing clarity, with clear revision increments to reflect changes. Business value centers on balanced gameplay, accurate catalog data, and smoother user experience for players relying on up-to-date codex entries.
August 2025 performance summary for BSData/wh40k-10e focused on delivering balance updates, data corrections, and codex expansions across Chaos Knights, Death Guard, Thousand Sons, and Leagues of Votann. Key work targeted data integrity, rule interactions, and user-facing clarity, with clear revision increments to reflect changes. Business value centers on balanced gameplay, accurate catalog data, and smoother user experience for players relying on up-to-date codex entries.
July 2025 performance summary for BSData/wh40k-10e: Focused on data integrity, rule alignment with the latest FAQs, and catalogue versioning to deliver reliable, tournament-ready data. Delivered targeted corrections across multiple codices, enhanced the Vindicare Assassin data, and tightened unit constraints to reflect official rules. The month reduced data discrepancy risk and improved onboarding for players and organizers, setting the stage for faster future updates.
July 2025 performance summary for BSData/wh40k-10e: Focused on data integrity, rule alignment with the latest FAQs, and catalogue versioning to deliver reliable, tournament-ready data. Delivered targeted corrections across multiple codices, enhanced the Vindicare Assassin data, and tightened unit constraints to reflect official rules. The month reduced data discrepancy risk and improved onboarding for players and organizers, setting the stage for faster future updates.
June 2025 summary for BSData/wh40k-10e focused on delivering high-value codex/content updates and stabilizing the data model through extensive bug fixes. Content drops include Cabal of Chaos integration, Wrath of the Rock enhancements, Sororitas MFM and Battleslate, and Chaos Knights Codex updates (Points/IA and Mageera text). A new Modifier for Enhancement option was introduced to improve rule readability and list-building accuracy. In parallel, a major consolidation of bug fixes across 12+ issues (4358–4509 and related fixes) improved data integrity, aura texts, visibility, and balance. Overall this period reduced support overhead and enabled faster, more reliable list-building for users.
June 2025 summary for BSData/wh40k-10e focused on delivering high-value codex/content updates and stabilizing the data model through extensive bug fixes. Content drops include Cabal of Chaos integration, Wrath of the Rock enhancements, Sororitas MFM and Battleslate, and Chaos Knights Codex updates (Points/IA and Mageera text). A new Modifier for Enhancement option was introduced to improve rule readability and list-building accuracy. In parallel, a major consolidation of bug fixes across 12+ issues (4358–4509 and related fixes) improved data integrity, aura texts, visibility, and balance. Overall this period reduced support overhead and enabled faster, more reliable list-building for users.
Month: 2025-05 Overview: In May 2025, delivered key features for BSData/wh40k-10e, stabilized the release and data pipelines, and executed an extensive bug-fix sprint across WE and general components. The work improved data accuracy, balance, and user experience, while laying a solid foundation for upcoming codex content and future expansions. Key outcomes: - Codex-related features released and integrated with the release workflow. - Data and balance improvements that enhance reliability for players and maintainers. - A comprehensive set of bug fixes across WE, Marks of Chaos, Terminator units, and general issues, improving stability and reducing user-reported issues. Technologies/skills demonstrated: - Deep debugging across multiple modules, issue-driven development, and rigorous commit traceability. - Release engineering and CI/CD readiness for codex content. - Clear collaboration with design/QA to validate changes and ensure data integrity. Note: This summary maps the month’s work to concrete commits and issue references where applicable, helping trackability for audits and performance reviews.
Month: 2025-05 Overview: In May 2025, delivered key features for BSData/wh40k-10e, stabilized the release and data pipelines, and executed an extensive bug-fix sprint across WE and general components. The work improved data accuracy, balance, and user experience, while laying a solid foundation for upcoming codex content and future expansions. Key outcomes: - Codex-related features released and integrated with the release workflow. - Data and balance improvements that enhance reliability for players and maintainers. - A comprehensive set of bug fixes across WE, Marks of Chaos, Terminator units, and general issues, improving stability and reducing user-reported issues. Technologies/skills demonstrated: - Deep debugging across multiple modules, issue-driven development, and rigorous commit traceability. - Release engineering and CI/CD readiness for codex content. - Clear collaboration with design/QA to validate changes and ensure data integrity. Note: This summary maps the month’s work to concrete commits and issue references where applicable, helping trackability for audits and performance reviews.
April 2025 delivered targeted data updates for BSData/wh40k-10e across Chaos Daemons, Thousand Sons, World Eaters, Adepta Sororitas, and Emperor's Children. Highlights include balance and data integrity improvements: adjusted Pall of Despair range to 9 inches and enforced upgrade constraints on Chaos Daemons rosters; refined Thousand Sons catalogue with a new Heavy weapon category, Scarab Occult Terminators rule refinements, and minimum roster rules; introduced the Goremongers unit for World Eaters with full costs/profiles and proper rule links; integrated Sanctifiers into the Sororitas list with defined costs, weapons, and abilities; launched the Emperor's Children faction with new units and upgrades and updated weapon entries. These changes improve balance, roster-building reliability, and data accuracy, support future expansion, and were implemented with clear commits and traceability.
April 2025 delivered targeted data updates for BSData/wh40k-10e across Chaos Daemons, Thousand Sons, World Eaters, Adepta Sororitas, and Emperor's Children. Highlights include balance and data integrity improvements: adjusted Pall of Despair range to 9 inches and enforced upgrade constraints on Chaos Daemons rosters; refined Thousand Sons catalogue with a new Heavy weapon category, Scarab Occult Terminators rule refinements, and minimum roster rules; introduced the Goremongers unit for World Eaters with full costs/profiles and proper rule links; integrated Sanctifiers into the Sororitas list with defined costs, weapons, and abilities; launched the Emperor's Children faction with new units and upgrades and updated weapon entries. These changes improve balance, roster-building reliability, and data accuracy, support future expansion, and were implemented with clear commits and traceability.
March 2025: Delivered a comprehensive set of balance and rule updates for BSData/wh40k-10e, consolidating point-cost adjustments, catalogue revisions, new keywords, and clarifications across Chaos, Imperium, Daemons, Sororitas, and other factions. Implemented major data improvements including Deep Strike support for Shadow Legion CSM and the Balance Dataslate Mar 2025. Fixed critical issues including AP correction for Inq Combi-weapon and multiple bug fixes across the data model (e.g., #3605, #3649, #3658, #3674, #3747, #3771). Re-enabled CI data validation to ensure datafile integrity. These changes improved accuracy, gameplay balance, and release reliability, reducing support overhead and enabling smoother player experiences. Demonstrated skills in data modeling, cross-faction balance, and CI/CD workflows.
March 2025: Delivered a comprehensive set of balance and rule updates for BSData/wh40k-10e, consolidating point-cost adjustments, catalogue revisions, new keywords, and clarifications across Chaos, Imperium, Daemons, Sororitas, and other factions. Implemented major data improvements including Deep Strike support for Shadow Legion CSM and the Balance Dataslate Mar 2025. Fixed critical issues including AP correction for Inq Combi-weapon and multiple bug fixes across the data model (e.g., #3605, #3649, #3658, #3674, #3747, #3771). Re-enabled CI data validation to ensure datafile integrity. These changes improved accuracy, gameplay balance, and release reliability, reducing support overhead and enabling smoother player experiences. Demonstrated skills in data modeling, cross-faction balance, and CI/CD workflows.
February 2025 for BSData/wh40k-10e focused on data integrity, edition alignment, and playability. Delivered a 10th Edition data overhaul with new weapon options and corrected pistol rules, streamlined Storm Guardian unit constraints, and tightened World Eaters loadout validation. Also corrected Chaos Daemons and Adeptus Custodes data, updated Chaos Knights Library, and completed cross-army data realignments to reflect intended gameplay.
February 2025 for BSData/wh40k-10e focused on data integrity, edition alignment, and playability. Delivered a 10th Edition data overhaul with new weapon options and corrected pistol rules, streamlined Storm Guardian unit constraints, and tightened World Eaters loadout validation. Also corrected Chaos Daemons and Adeptus Custodes data, updated Chaos Knights Library, and completed cross-army data realignments to reflect intended gameplay.
January 2025 performance summary for BSData/wh40k-10e: Focused on data integrity, rule clarity, and expanded options. Key outcomes include enforcing Chaos Space Marines unit attachments and size validation, adding new weapon keywords to Chaos Space Marines, correcting typos and refining descriptions for Imperium - Adeptus Mechanicus, and broad data quality improvements across factions. These changes improve list accuracy, reduce invalid configurations, and provide users with richer tactical options while aligning data with a single validation scheme.
January 2025 performance summary for BSData/wh40k-10e: Focused on data integrity, rule clarity, and expanded options. Key outcomes include enforcing Chaos Space Marines unit attachments and size validation, adding new weapon keywords to Chaos Space Marines, correcting typos and refining descriptions for Imperium - Adeptus Mechanicus, and broad data quality improvements across factions. These changes improve list accuracy, reduce invalid configurations, and provide users with richer tactical options while aligning data with a single validation scheme.
December 2024 monthly summary for repository BSData/wh40k-10e. Focused delivery of new detachments, architectural refactors to improve data organization and extensibility, and comprehensive dataslate updates, complemented by a broad set of fixes to stabilize the data layer and user experience across the release.
December 2024 monthly summary for repository BSData/wh40k-10e. Focused delivery of new detachments, architectural refactors to improve data organization and extensibility, and comprehensive dataslate updates, complemented by a broad set of fixes to stabilize the data layer and user experience across the release.
Month: 2024-11 | Repository: BSData/wh40k-10e. Delivered a coordinated set of data updates across factions to improve balance, accuracy, and extensibility of the 10e rules data. Key work focused on Chaos Space Marines overhaul and allied factions integration, Aeldari catalogue improvements, Imperium army data updates, and a World Eaters data typo fix.
Month: 2024-11 | Repository: BSData/wh40k-10e. Delivered a coordinated set of data updates across factions to improve balance, accuracy, and extensibility of the 10e rules data. Key work focused on Chaos Space Marines overhaul and allied factions integration, Aeldari catalogue improvements, Imperium army data updates, and a World Eaters data typo fix.
Overview of all repositories you've contributed to across your timeline