
Jan Lysy developed and maintained core features for the mailpoet/mailpoet repository, focusing on scalable email automation, editor UX, and deep WooCommerce integration. He engineered robust backend systems in PHP and TypeScript, delivering API endpoints, automation statistics, and advanced personalization for email campaigns. Jan refactored legacy code to WordPress Coding Standards, improved CI/CD pipelines, and enhanced test reliability using PHPUnit and Codeception. His work included integrating analytics, optimizing database migrations, and strengthening security for data handling. By modernizing dependencies and streamlining release workflows, Jan ensured the codebase remained maintainable, performant, and compatible with evolving WordPress and WooCommerce platforms.

October 2025 performance summary focusing on automation UX, revenue analytics, and data integrity across mailpoet/mailpoet and the WooCommerce Google Analytics integration. Delivered cross-repo enhancements that improve revenue visibility, editor UX, and embedding workflows, plus security hardening for analytics data. Notable release milestone: Garden mode alignment with UI updates and privacy considerations, culminating in Release 5.16.1.
October 2025 performance summary focusing on automation UX, revenue analytics, and data integrity across mailpoet/mailpoet and the WooCommerce Google Analytics integration. Delivered cross-repo enhancements that improve revenue visibility, editor UX, and embedding workflows, plus security hardening for analytics data. Notable release milestone: Garden mode alignment with UI updates and privacy considerations, culminating in Release 5.16.1.
September 2025: Delivered a robust core integration with WooCommerce Bookings for MailPoet, enabling activation detection, status/bookings retrieval, status-change triggers, and plugin activity reporting; added static analysis support via a PHPStan stub; enhanced CAPTCHA rendering with type-safety and improved URL handling; boosted Automation capabilities with sorting, filtering, and pagination, and included last-run data in the endpoint; expanded Automation Statistics with email metrics and accompanying tests; implemented analytics tracking via Tracks with a dedicated worker and refactored analytics handling for Mixpanel/Tracks; included a CustomerToSubscriberSubjectTransformer for MailPoet integration; maintained project health with dependency updates and comprehensive changelog/documentation updates; and fixed core reliability aspects such as WC_Booking stub handling.
September 2025: Delivered a robust core integration with WooCommerce Bookings for MailPoet, enabling activation detection, status/bookings retrieval, status-change triggers, and plugin activity reporting; added static analysis support via a PHPStan stub; enhanced CAPTCHA rendering with type-safety and improved URL handling; boosted Automation capabilities with sorting, filtering, and pagination, and included last-run data in the endpoint; expanded Automation Statistics with email metrics and accompanying tests; implemented analytics tracking via Tracks with a dedicated worker and refactored analytics handling for Mixpanel/Tracks; included a CustomerToSubscriberSubjectTransformer for MailPoet integration; maintained project health with dependency updates and comprehensive changelog/documentation updates; and fixed core reliability aspects such as WC_Booking stub handling.
August 2025: Delivered significant improvements to MailPoet's Email Editor integration and distribution workflow, enhancing editor targeting, reliability, and business readiness. Implemented post_types binding for Email Editor patterns and associated personalization tags with the Email post type to ensure correct rendering and targeting. Hardened the save flow by adding middleware to strip post status during saves and strengthened related type safety. Refined Premium plugin URL generation to include free version major/minor, escape characters, and alignment with the Installer-based workflow, increasing reliability of downstream deployments. Updated dependencies across email-editor, WordPress scripts, and related tooling to latest versions, removed deprecated references, and improved project hygiene. Strengthened operational resilience with robust segment statistics queries, improved error handling, default fallbacks, and updated PHPStan baseline and documentation. These changes reduce risk, accelerate feature delivery, and improve campaign targeting and distribution reliability.
August 2025: Delivered significant improvements to MailPoet's Email Editor integration and distribution workflow, enhancing editor targeting, reliability, and business readiness. Implemented post_types binding for Email Editor patterns and associated personalization tags with the Email post type to ensure correct rendering and targeting. Hardened the save flow by adding middleware to strip post status during saves and strengthened related type safety. Refined Premium plugin URL generation to include free version major/minor, escape characters, and alignment with the Installer-based workflow, increasing reliability of downstream deployments. Updated dependencies across email-editor, WordPress scripts, and related tooling to latest versions, removed deprecated references, and improved project hygiene. Strengthened operational resilience with robust segment statistics queries, improved error handling, default fallbacks, and updated PHPStan baseline and documentation. These changes reduce risk, accelerate feature delivery, and improve campaign targeting and distribution reliability.
July 2025 highlights for mailpoet/mailpoet: Delivered Release 5.12.10 with stable packaging and JS compatibility improvements, implemented key URL matching fixes in ConflictResolver, migrated remaining filters/actions to the new setup, and modernized dependencies and packaging to reduce maintenance overhead. Significant tests and quality gains were realized through acceptance-test enhancements and improved logging, alongside UX improvements such as the back button URL and powered-by block checks. Overall, the release improves stability, performance, and cross-version compatibility, enabling faster feature delivery and reduced customer risk.
July 2025 highlights for mailpoet/mailpoet: Delivered Release 5.12.10 with stable packaging and JS compatibility improvements, implemented key URL matching fixes in ConflictResolver, migrated remaining filters/actions to the new setup, and modernized dependencies and packaging to reduce maintenance overhead. Significant tests and quality gains were realized through acceptance-test enhancements and improved logging, alongside UX improvements such as the back button URL and powered-by block checks. Overall, the release improves stability, performance, and cross-version compatibility, enabling faster feature delivery and reduced customer risk.
May 2025 focused on stabilizing subscriber workflows and strengthening MailPoet's WooCommerce integration. Delivered a major feature to support WooCommerce Transactional Newsletters via the Settings data factory and ensured transactional emails initialize when WooCommerce email customization is enabled. Addressed a critical user-facing bug by correcting the success message number for bulk subscriber removals, aligning the release with 5.12.2 and updating version references across the codebase. These changes improve reliability, user experience, and business value for ecommerce publishers while enhancing release readiness.
May 2025 focused on stabilizing subscriber workflows and strengthening MailPoet's WooCommerce integration. Delivered a major feature to support WooCommerce Transactional Newsletters via the Settings data factory and ensured transactional emails initialize when WooCommerce email customization is enabled. Addressed a critical user-facing bug by correcting the success message number for bulk subscriber removals, aligning the release with 5.12.2 and updating version references across the codebase. These changes improve reliability, user experience, and business value for ecommerce publishers while enhancing release readiness.
April 2025 performance summary for mailpoet/mailpoet. Delivered WordPress 6.8 readiness improvements and targeted UI/styling fixes, strengthening release quality and customer value. Implemented WP6.8-compatible Email Editor with default template-locked mode and adjusted post-type supports to ensure seamless editor behavior across sites upgrading to WordPress 6.8. Stabilized the UI by fixing styles sidebar scrolling and correcting list syntax, improving visual consistency for users on WP6.8. Enhanced test reliability through test infrastructure improvements, including normalization of WordPress version strings in acceptance tests and introducing a cookie reset for orderProduct tests to avoid flaky results. Updated documentation to reflect fixes for HTML list styles, ensuring teams and users are aware of the resolved issues.
April 2025 performance summary for mailpoet/mailpoet. Delivered WordPress 6.8 readiness improvements and targeted UI/styling fixes, strengthening release quality and customer value. Implemented WP6.8-compatible Email Editor with default template-locked mode and adjusted post-type supports to ensure seamless editor behavior across sites upgrading to WordPress 6.8. Stabilized the UI by fixing styles sidebar scrolling and correcting list syntax, improving visual consistency for users on WP6.8. Enhanced test reliability through test infrastructure improvements, including normalization of WordPress version strings in acceptance tests and introducing a cookie reset for orderProduct tests to avoid flaky results. Updated documentation to reflect fixes for HTML list styles, ensuring teams and users are aware of the resolved issues.
March 2025 monthly summary for mailpoet/mailpoet focused on delivering a major plugin update, PHP 8.3 readiness, and CI/CD improvements to support faster, more reliable releases. The work enhances compatibility with WooCommerce 9.6+, streamlines testing, improves local development experience, and strengthens CI pipelines to reduce release risk and accelerate delivery of business value.
March 2025 monthly summary for mailpoet/mailpoet focused on delivering a major plugin update, PHP 8.3 readiness, and CI/CD improvements to support faster, more reliable releases. The work enhances compatibility with WooCommerce 9.6+, streamlines testing, improves local development experience, and strengthens CI pipelines to reduce release risk and accelerate delivery of business value.
February 2025 summary for mailpoet/mailpoet focusing on delivering scalable, maintainable improvements to email templates and rich-text capabilities. Key progress includes: (1) Rich-Text Support: added a compiled rich-text core (rich-text.js) and an asset manifest, with a README note specifying the minimum @wordpress/rich-text version required for Personalization tags and upgrade guidance. (2) Email Template System: introduced Templates_Registry, refactored template registration to use the registry, wired into dependency injection, updated get_post_types to map to template slugs, and expanded test coverage (including registry tests and a test fix). (3) Composer/Autoload Cleanup: streamlined packaging and autoload config by updating composer.json for email editor dependencies and removing an explicit exceptions file from autoload configuration. (4) Testing and Stability: added and fixed unit tests for Template_Registry to ensure correct behavior and reliability. (5) Documentation and Value: clarified upgrade paths and minimum version requirements to reduce risk during deployments. Overall, these changes enhance template management, personalization reliability, and package maintainability, aligning development work with business goals of scalable email campaigns and smoother deployments.
February 2025 summary for mailpoet/mailpoet focusing on delivering scalable, maintainable improvements to email templates and rich-text capabilities. Key progress includes: (1) Rich-Text Support: added a compiled rich-text core (rich-text.js) and an asset manifest, with a README note specifying the minimum @wordpress/rich-text version required for Personalization tags and upgrade guidance. (2) Email Template System: introduced Templates_Registry, refactored template registration to use the registry, wired into dependency injection, updated get_post_types to map to template slugs, and expanded test coverage (including registry tests and a test fix). (3) Composer/Autoload Cleanup: streamlined packaging and autoload config by updating composer.json for email editor dependencies and removing an explicit exceptions file from autoload configuration. (4) Testing and Stability: added and fixed unit tests for Template_Registry to ensure correct behavior and reliability. (5) Documentation and Value: clarified upgrade paths and minimum version requirements to reduce risk during deployments. Overall, these changes enhance template management, personalization reliability, and package maintainability, aligning development work with business goals of scalable email campaigns and smoother deployments.
January 2025 — MailPoet focused on UX polish, reliability, and performance with a release-ready milestone. Delivered unified link edit popover, new powered-by-mailpoet footer block with PremiumModal, robust email link handling with migrations, and a performance optimization by moving iframe asset fetching. Also advanced editor stability through styling and block loading fixes and prepared Release 5.6.1.
January 2025 — MailPoet focused on UX polish, reliability, and performance with a release-ready milestone. Delivered unified link edit popover, new powered-by-mailpoet footer block with PremiumModal, robust email link handling with migrations, and a performance optimization by moving iframe asset fetching. Also advanced editor stability through styling and block loading fixes and prepared Release 5.6.1.
December 2024 focused on delivering end-to-end Personalization Tags capabilities for mailpoet/mailpoet, coupled with build and quality improvements across the Rich Text integration. Key features include API endpoints, UI for tag display and filtering, tag insertion flow, and robust token handling, all aligned with a custom Rich Text build. Performance and code quality improvements reduced re-renders, improved TypeScript signals, and streamlined webpack config. The outcomes enable dynamic personalization at scale and improved editor UX, with maintainable code and improved stability.
December 2024 focused on delivering end-to-end Personalization Tags capabilities for mailpoet/mailpoet, coupled with build and quality improvements across the Rich Text integration. Key features include API endpoints, UI for tag display and filtering, tag insertion flow, and robust token handling, all aligned with a custom Rich Text build. Performance and code quality improvements reduced re-renders, improved TypeScript signals, and streamlined webpack config. The outcomes enable dynamic personalization at scale and improved editor UX, with maintainable code and improved stability.
November 2024 monthly summary for mailpoet/mailpoet. Focused on code quality, standardization, test reliability, and strategic feature enhancements that enable targeted personalization and better editor UX. Delivered extensive WP Coding Standard migrations across the Email Editor, upgraded tests and support code to WordPress standards, and hardened CI/code style workflows. Implemented personalization architecture and Gutenberg/editor integration, and validated database migrations with testing and a formal release.
November 2024 monthly summary for mailpoet/mailpoet. Focused on code quality, standardization, test reliability, and strategic feature enhancements that enable targeted personalization and better editor UX. Delivered extensive WP Coding Standard migrations across the Email Editor, upgraded tests and support code to WordPress standards, and hardened CI/code style workflows. Implemented personalization architecture and Gutenberg/editor integration, and validated database migrations with testing and a formal release.
October 2024: Strengthened code quality and maintainability in the asset URL subsystem of mailpoet/mailpoet through a WP Coding Standards refactor. Focused on aligning naming and structure with WordPress guidelines to reduce technical debt and ease future enhancements.
October 2024: Strengthened code quality and maintainability in the asset URL subsystem of mailpoet/mailpoet through a WP Coding Standards refactor. Focused on aligning naming and structure with WordPress guidelines to reduce technical debt and ease future enhancements.
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