February 2026 (2026-02) – Datalens UI monthly summary focusing on user experience improvements, test coverage, and codebase maintainability. Delivered features that prevent selector conflicts, improved reliability of dynamic content rendering, and reduced technical debt through cleanup efforts.

January 2026 monthly summary for datalens-ui focused on stabilizing and expanding the UI around dashboard tab management, global selectors, and internationalization workflows, while improving reliability and user experience through on-demand data loading and robust error handling. The work delivered lays a strong foundation for multi-tab configurations, cross-tab global selectors, and scalable UI validation/export, with maintainable internal refactors.

December 2025 performance summary for datalens-ui. Focused on delivering a robust Global selectors experience, strengthening validation, UX, and testing, while upgrading core tooling. Key features delivered: - Global selectors: Base operations and actions implemented to enable globality of selectors with fixes for base actions. Representative commits include 419a51d and a795135c. - Global selectors: Schema and validation enhanced with zod describes, validation for global items in control dialog, and fixes for updating fields. Commits include 1e9d6fc, e8c668c, bcc0ef, a058cc. - Global selectors: Copy and removal warning UI added to support safe copy actions and pre-remove warnings. Commits 560c8be, 4c395792. - Global settings UI: Tab title fixes and added texts for global selectors to improve usability. Commit b19ecfa. - Global selectors improvements: Various refinements to improve reliability and UX. Commit 3b92a5f. - Global params: States support for global params added. Commit 574e4965. - QA/testing: Added base e2e-tests for global selectors and QA for dialog chart widget to improve coverage. Commits bda415a0, c7af1ef. - Tooling and UI polish: Upgraded core dependencies (dashkit to 9.3.x) and diplodoc transform; added custom settings icon and navigation visuals. Commits 9f42fb8, 7f9ac6df, 0b594d40, 6d950fc5, 4c954e1d, b19ecfa. Major bugs fixed: - Reports controls: Fixed controls for reports. Commit 89b499f9687f. - Embedded entry debug info: Return debug info for embedded entry. Commit 3d2da49961f4475410f8ee659bc6b6390bfcb6b4. - Copy/paste for current tab: Fix copy and paste for current tab. Commit 4d2671a33f94495900355a29b3da3b329847e3de. - Wizard navigation stability: Fix wizard navigation flapping test. Commit 69f4e83563fe6522db01e7b552e64e1f8a33beb0. - Global selectors reliability: Fix visibility and impact for global selectors; fix incorrect impact; remove extra global items from relations select. Commits e828d041, 6cd8b32b, 40bfab55. - Misc fixes: Move DialogChartWidget QA to another enum; fix dash relations for d3 ql-charts. Commits 5233407981d95f01b863ab3bc09df96958ae86f8, bfffe204d3496cb2471aed394be277c70a72b8d5. - Group setting: Fix default impact type. Commit df3aea1225e12fe517ad8790f4f38730fa91600a. Overall impact and accomplishments: - Significantly improved global selectors reliability, UX, and safety with comprehensive validation, copy/removal safeguards, and state support. - Strengthened quality with targeted bug fixes, broader test coverage (base e2e-tests and QA), and reduced flaky behavior in navigation, dialogs, and tab interactions. - Modernized the tech stack with dependency upgrades to DashKit 9.3.x and diplodoc 4.60.3, enabling smoother UI and tooling improvements. - Delivered business value through safer, scalable global selector management and clearer UI text, contributing to faster feature iterations and lower maintenance cost.

November 2025 — Delivered four core UI improvements for datalens-ui in datalens-tech/datalens-ui. Upgraded Dashkit to 9.2.0 for stability and performance; enhanced getDistincts to accept options for user-driven filtering; added InterpolatedText multi-link support with index-based rendering; extended Toaster with typing improvements and optional withReport to improve error visibility. These changes reduce UX friction, improve data exploration accuracy, and strengthen error reporting, contributing to faster feature delivery and higher system reliability.

October 2025: Delivered Video Playback Looping Improvements in gravity-ui/page-constructor. Implemented a robust, centralized looping mechanism that supports both default and parameterized video types, refactored loop logic to accommodate diverse video elements, and fixed event handling for video completion. Result: consistent looping behavior across configurations and a smoother user experience. Commit 9370b5d52598a081a646a222d4fb803bf8ad4340 tied to this work (fix(Media): support boolean and parameterized loop for both video types (#1298)).

September 2025 (2025-09) monthly summary for gravity-ui/page-constructor: Key features delivered include Media Component Enhancements: added rich title prop type for Media and Map blocks and enabled programmatic control of Media video via ref; documentation improvements for Media component. Major bug fix: DefaultVideo now respects muting by explicitly setting defaultMuted on mount or when initiallyMuted changes. Overall impact: richer media capabilities and more reliable autoplay/muting behavior, with clearer docs improving developer onboarding and maintenance. Technologies demonstrated: React component design and prop type expansion, ref usage for DOM elements, HTML muting semantics, and documentation practices. Business value: enhanced content presentation, better UX for media blocks, and reduced maintenance overhead. Commits included: 3115ece1e109077ab35d5dc9f6552cbe93898418; f99b8620b4a96d5560733e1086dcc5a687b32909; bbb8f68f284b20f043e23a19528d9fae4e63c440; 05e41745806eace2ee7575b55f1530834c2b9ef0.

August 2025 — Gravity UI Page Constructor: Implemented external observability and stronger type-safety to improve developer experience and downstream integration. Key outcomes include a new onSidebarChange prop for the Navigation component to notify parent components of open state changes, and refined type definitions for CardBase/MediaBase to ensure compatibility of compound components and stronger typing for children props. These changes reduce runtime errors, simplify maintenance, and enable more robust downstream adaptations.

July 2025 monthly summary for gravity-ui/navigation: A single feature delivered with supporting docs and Storybook updates, contributing to greater navigation header flexibility. No major bugs fixed this month, and no regressions introduced. Overall impact: enhanced customization capabilities for the AsideHeader component, enabling teams to tailor the collapse button rendering to fit diverse UI requirements, reducing integration effort across apps. Technologies/skills demonstrated: React component API design, prop extensibility, documentation practices, and Storybook/demo quality.

June 2025: Delivered the Gallery mobile view enhancement in gravity-ui/components, introducing a dedicated mobile layout with separate mobile and desktop views, including mobile header/footer, and mobile-specific gestures and styling to improve usability on small screens. The work is encapsulated in a single feature commit. No major bugs fixed this month. The change enhances mobile usability, aligns with mobile-first goals, and lays the groundwork for additional responsive features across the design system.

May 2025 monthly results for datalens-ui focused on privacy, reliability, and UX across the UI suite. Delivered privacy-first controls for embedded charts, enhanced workbook export/import UX, mobile fullscreen gallery with i18n, and robustness and consistency improvements in embedding and UI components. These changes reduce privacy exposure, improve workflow reliability, and deliver a smoother cross-platform experience for users.

April 2025 monthly summary for gravity-ui/uikit: Focused improvements on FilePreview to enhance API surface, external reuse, and UI consistency. Delivered an exported FilePreviewAction type (renaming internal FilePreviewActionProps to FilePreviewAction) to simplify integration with other components and APIs. Fixed a compact view bug that could render actions incorrectly by explicitly setting the actions prop to 'never', improving UI predictability, type safety, and developer ergonomics. Overall, these changes reduce integration friction, improve component reliability, and demonstrate solid TypeScript/API design and UI correctness.

March 2025 achieved a focused modular enhancement in gravity-ui/uikit by exporting the getFileType utility from the FilePreview component, improving reusability and external access for downstream apps. The change was implemented with minimal risk to existing behavior and aligns with library export standards.

February 2025 monthly summary for gravity-ui/uikit: delivered mobile-first FilePreview enhancements with a responsive actions system to optimize usability on small screens and ensure accessible UX across devices. No major bugs reported this period; focus remained on delivering a high-value feature that scales across devices and aligns with product goals.

January 2025 monthly summary: Delivered governance and feature improvements across gravity-ui/components, gravity-ui/uikit, and gravity-ui/markdown-editor. Notable outcomes include: updated CODEOWNERS for FilePreview to ensure accurate code reviews; Sheet rendering simplified by removing an unnecessary wrapper and performance improvements; removal of fullscreen mobile image preview in FilePreview with expanded MIME-type support; and a strikethrough WYSIWYG fix in Markdown Editor to restore proper editor behavior. These changes improved performance, reduced DOM complexity, broadened file compatibility, and stabilized editor UX.

December 2024 monthly summary for gravity-ui/uikit focused on stability, maintainability, and precise contributor workflows. Delivered ownership metadata for FilePreview to ensure accurate notifications and reduced risk of misrouted changes, while keeping end-user behavior unchanged. Stabilized Sheet component animations to reduce cross-browser lags by tuning window resize handling and preventing resizing during animations, resulting in smoother transitions. These efforts improve collaboration efficiency, reduce potential support overhead, and maintain product polish without introducing new functionality changes.

November 2024 monthly summary for datalens-ui focusing on embedding controls, UI refinements, and API modernization. Delivered secure embedding behavior, corrected cross-tab widget relations, improved UI consistency, fixed translations for charts, and modernized chart APIs with export capabilities and API_PREFIX consolidation, driving reliability, maintainability, and business value.