
Zhiming Stone contributed to the emqx/emqx repository by architecting and delivering core features that advanced EMQX’s reliability, scalability, and security. He engineered modular backend systems in Erlang and Elixir, modernized APIs with internationalization-ready HOCON schemas, and improved authentication, authorization, and multi-tenancy. His work included performance optimizations, sharded dispatcher pools, and robust CI/CD pipelines, addressing both runtime efficiency and release stability. Zhiming enhanced observability and documentation, streamlined configuration management, and led dependency upgrades to support evolving business needs. Through rigorous testing, code refactoring, and targeted bug fixes, he ensured high-quality, maintainable solutions that reduced operational risk and accelerated delivery.

October 2025: Delivered API modernization and reliability improvements across EMQX core and docs, with a clear focus on business value: localized, consistent APIs, data integrity, and smoother upgrade paths. Highlights include broad refactor of API descriptions to i18n-ready HOCON, addition of runtime validation for data_backup, targeted bug fixes, and strategic dependency upgrades that improve stability and performance across the stack.
October 2025: Delivered API modernization and reliability improvements across EMQX core and docs, with a clear focus on business value: localized, consistent APIs, data integrity, and smoother upgrade paths. Highlights include broad refactor of API descriptions to i18n-ready HOCON, addition of runtime validation for data_backup, targeted bug fixes, and strategic dependency upgrades that improve stability and performance across the stack.
September 2025 monthly summary for emqx/emqx and emqx/emqx-docs. Delivered core features, fixed critical issues, and advanced performance, stability, and upgrade readiness across broker and documentation work. Notable outcomes include Debian 13/Trixie build support in CI, security-focused defaults and ACL improvements, new TPS visibility, and a robust release readiness posture for the 5.8.x line with ongoing 5.9.2-beta.3 changelog work. The effort spanned CI/build pipelines, API enhancements, test stabilization, and platform maintenance, underscoring business value through improved stability, security, and customer upgrade paths.
September 2025 monthly summary for emqx/emqx and emqx/emqx-docs. Delivered core features, fixed critical issues, and advanced performance, stability, and upgrade readiness across broker and documentation work. Notable outcomes include Debian 13/Trixie build support in CI, security-focused defaults and ACL improvements, new TPS visibility, and a robust release readiness posture for the 5.8.x line with ongoing 5.9.2-beta.3 changelog work. The effort spanned CI/build pipelines, API enhancements, test stabilization, and platform maintenance, underscoring business value through improved stability, security, and customer upgrade paths.
2025-08 monthly summary focused on stabilization, feature cleanup, and release readiness across EMQX and EMQX-docs. Key outcomes include cleaning up dashboards and aligning chart metadata, robust bug fixes that improve connection reliability and config loading, and intensified release/CI hygiene to support the upcoming 6.x line. Also advanced throughput with a sharded dispatcher pool and strengthened documentation governance for changelogs and Kafka-related updates. The work reduces operational risk, accelerates go-to-market, and demonstrates across-the-board proficiency in backend Erlang/Elixir, CI/CD, and documentation. Highlights by area: - Dashboard/Chart improvements: Refactor to remove the 'bridges' schema from dashboard JSON; fix appVersion in Chart.yaml. - Critical bug fixes: grpc_client SSL options fixed; unzip badarg issue addressed via Erlang upgrade; do not catch exceptions during config init_load; Econnreset handling and log suppression improvements. - Release readiness/CI hygiene: Stopped Debian10 releases; updated macOS runner naming; prepped release 5.8.8-beta.2 and 6.0.0-M2 RC scaffolding; app version synchronization to avoid future conflicts. - Performance and reliability: Sharded message dispatcher pool refactor to boost throughput; test stabilization and reliability improvements (per-test IDs, retries). - Documentation and governance: Changelog formatting improvements; documentation updates for Kafka dependencies and PR-specific notes; EMQX docs updates to consolidate clarifications. Business value: - Reduced release risk and faster delivery cycles, with clearer configuration and versioning across components. - Improved runtime stability for client connections and config init paths, lowering support incidents. - Greater throughput and more reliable test suites, driving confidence in releases. - Clear, concise documentation supporting maintainers and operators; improved changelogs and planning visibility.
2025-08 monthly summary focused on stabilization, feature cleanup, and release readiness across EMQX and EMQX-docs. Key outcomes include cleaning up dashboards and aligning chart metadata, robust bug fixes that improve connection reliability and config loading, and intensified release/CI hygiene to support the upcoming 6.x line. Also advanced throughput with a sharded dispatcher pool and strengthened documentation governance for changelogs and Kafka-related updates. The work reduces operational risk, accelerates go-to-market, and demonstrates across-the-board proficiency in backend Erlang/Elixir, CI/CD, and documentation. Highlights by area: - Dashboard/Chart improvements: Refactor to remove the 'bridges' schema from dashboard JSON; fix appVersion in Chart.yaml. - Critical bug fixes: grpc_client SSL options fixed; unzip badarg issue addressed via Erlang upgrade; do not catch exceptions during config init_load; Econnreset handling and log suppression improvements. - Release readiness/CI hygiene: Stopped Debian10 releases; updated macOS runner naming; prepped release 5.8.8-beta.2 and 6.0.0-M2 RC scaffolding; app version synchronization to avoid future conflicts. - Performance and reliability: Sharded message dispatcher pool refactor to boost throughput; test stabilization and reliability improvements (per-test IDs, retries). - Documentation and governance: Changelog formatting improvements; documentation updates for Kafka dependencies and PR-specific notes; EMQX docs updates to consolidate clarifications. Business value: - Reduced release risk and faster delivery cycles, with clearer configuration and versioning across components. - Improved runtime stability for client connections and config init paths, lowering support incidents. - Greater throughput and more reliable test suites, driving confidence in releases. - Clear, concise documentation supporting maintainers and operators; improved changelogs and planning visibility.
July 2025 monthly summary for emqx/emqx focusing on stability, observability, and faster release readiness. Delivered OTP upgrade with TLS stability improvements, strengthened test and health monitoring, and CI/CD infrastructure updates. The changes reduce TLS-related outages, improve observability, and accelerate release cycles.
July 2025 monthly summary for emqx/emqx focusing on stability, observability, and faster release readiness. Delivered OTP upgrade with TLS stability improvements, strengthened test and health monitoring, and CI/CD infrastructure updates. The changes reduce TLS-related outages, improve observability, and accelerate release cycles.
June 2025 monthly summary for emqx projects. Focused on reliability, localization, release readiness, and code quality. Delivered a set of bug fixes, feature/documentation enhancements, and a major refactor, enabling a smoother 5.10.0 release and stronger localization support across modules.
June 2025 monthly summary for emqx projects. Focused on reliability, localization, release readiness, and code quality. Delivered a set of bug fixes, feature/documentation enhancements, and a major refactor, enabling a smoother 5.10.0 release and stronger localization support across modules.
May 2025 performance summary: Delivered key architectural and reliability improvements across EMQX and docs. Highlights include the EMQX Utils modularization to reduce cross-app dependencies, strengthened test infrastructure and CI checks, security hardening with random JWKs, dependency upgrades, and refreshed documentation and onboarding guidance. These changes enable faster, safer releases, reduce maintenance overhead, and improve developer productivity across EMQX and EMQX Docs.
May 2025 performance summary: Delivered key architectural and reliability improvements across EMQX and docs. Highlights include the EMQX Utils modularization to reduce cross-app dependencies, strengthened test infrastructure and CI checks, security hardening with random JWKs, dependency upgrades, and refreshed documentation and onboarding guidance. These changes enable faster, safer releases, reduce maintenance overhead, and improve developer productivity across EMQX and EMQX Docs.
April 2025 monthly summary for EMQX core and docs repos. This month focused on stabilizing test suites, upgrading dependencies for OTP27, boosting CI/CD reliability, enhancing authentication/authorization capabilities, and refining monitoring dashboards to deliver measurable business value. Key outcomes included stable test execution across the suite, OTP27 compatibility with updated test dependencies, updated Ekka dependency, and comprehensive CI improvements reducing build failures; security and access-control enhancements with preconditions, placeholders, and zone/listener support; and improved visibility and stability of runtime metrics through dashboard improvements. These efforts collectively reduce deployment risk, accelerate release cycles, and improve operator productivity.
April 2025 monthly summary for EMQX core and docs repos. This month focused on stabilizing test suites, upgrading dependencies for OTP27, boosting CI/CD reliability, enhancing authentication/authorization capabilities, and refining monitoring dashboards to deliver measurable business value. Key outcomes included stable test execution across the suite, OTP27 compatibility with updated test dependencies, updated Ekka dependency, and comprehensive CI improvements reducing build failures; security and access-control enhancements with preconditions, placeholders, and zone/listener support; and improved visibility and stability of runtime metrics through dashboard improvements. These efforts collectively reduce deployment risk, accelerate release cycles, and improve operator productivity.
March 2025 focused on licensing flexibility, enterprise readiness, reliability, and release discipline across the EMQX family. Key outcomes include license system enhancements with telemetry; enterprise build/test configuration updates; removal of CE edition to simplify maintenance; significant code quality and stability improvements; and health-check, SQL Server reliability enhancements. Documentation and release tooling were improved to support clearer guidance and smoother releases across repos.
March 2025 focused on licensing flexibility, enterprise readiness, reliability, and release discipline across the EMQX family. Key outcomes include license system enhancements with telemetry; enterprise build/test configuration updates; removal of CE edition to simplify maintenance; significant code quality and stability improvements; and health-check, SQL Server reliability enhancements. Documentation and release tooling were improved to support clearer guidance and smoother releases across repos.
February 2025 monthly summary focusing on key accomplishments across the emqx/emqx and emqx-emqx-docs repositories. Major security, reliability, and quality improvements were delivered, with concrete features, fixes, and process enhancements that reduce risk, improve user experience, and support business goals.
February 2025 monthly summary focusing on key accomplishments across the emqx/emqx and emqx-emqx-docs repositories. Major security, reliability, and quality improvements were delivered, with concrete features, fixes, and process enhancements that reduce risk, improve user experience, and support business goals.
January 2025: Core EMQX delivered targeted architectural improvements, performance optimizations, and security/API enhancements across emqx/emqx and emqx/emqx-docs, with strong emphasis on business value, reliability, and upgradeability. Highlights include MT API path namespace refactor to avoid clashes; ETS tables owned by the root supervisor; off-heap mailbox refactor; EMQX broker helper and connection manager (CM) performance optimizations (priority tuning, using erlang:send, avoiding mailbox scans); and security/API upgrades (MFA endpoint and MFA field in user responses) plus improved MFA error handling. Documentation updates, test stability improvements, and license counting correction completed in parallel. Maintenance work includes SBOM plugin removal and build-step cleanup, Docker image improvement (curl added), and upstream dependency bumps (OTP and Kafka client).
January 2025: Core EMQX delivered targeted architectural improvements, performance optimizations, and security/API enhancements across emqx/emqx and emqx/emqx-docs, with strong emphasis on business value, reliability, and upgradeability. Highlights include MT API path namespace refactor to avoid clashes; ETS tables owned by the root supervisor; off-heap mailbox refactor; EMQX broker helper and connection manager (CM) performance optimizations (priority tuning, using erlang:send, avoiding mailbox scans); and security/API upgrades (MFA endpoint and MFA field in user responses) plus improved MFA error handling. Documentation updates, test stability improvements, and license counting correction completed in parallel. Maintenance work includes SBOM plugin removal and build-step cleanup, Docker image improvement (curl added), and upstream dependency bumps (OTP and Kafka client).
December 2024 monthly summary for EMQX development. Focused on delivering multi-tenant scalability features, strengthening CLI UX, expanding test coverage, and hardening reliability and security across core EMQX and MT subsystems. Key outcomes include quota-based authentication hook checks, MT multi-tenant config schema and per-node session limits, CLI usage improvements, and broader test coverage for CLI and MT REST APIs, complemented by targeted reliability fixes and documentation updates. See commit-level notes below for traceability and business value.
December 2024 monthly summary for EMQX development. Focused on delivering multi-tenant scalability features, strengthening CLI UX, expanding test coverage, and hardening reliability and security across core EMQX and MT subsystems. Key outcomes include quota-based authentication hook checks, MT multi-tenant config schema and per-node session limits, CLI usage improvements, and broader test coverage for CLI and MT REST APIs, complemented by targeted reliability fixes and documentation updates. See commit-level notes below for traceability and business value.
Month: 2024-11 focused on delivering features that accelerate enterprise adoption, strengthening security, improving stability, and expanding multi-tenancy capabilities, while also improving observability and documentation. Core work spanned EMQX core, management/UI refinements, and documentation across repos, with targeted fixes to reduce downtime and improve maintainability.
Month: 2024-11 focused on delivering features that accelerate enterprise adoption, strengthening security, improving stability, and expanding multi-tenancy capabilities, while also improving observability and documentation. Core work spanned EMQX core, management/UI refinements, and documentation across repos, with targeted fixes to reduce downtime and improve maintainability.
Month 2024-10 — EMQX repository (emqx/emqx) focused on performance improvements, stability, and security across Kafka integration, Dialyzer robustness, and TLS configuration. Delivered code changes, documentation, and security enhancements with a clear business impact: lower latency, improved static analysis reliability, and stronger TLS security.
Month 2024-10 — EMQX repository (emqx/emqx) focused on performance improvements, stability, and security across Kafka integration, Dialyzer robustness, and TLS configuration. Delivered code changes, documentation, and security enhancements with a clear business impact: lower latency, improved static analysis reliability, and stronger TLS security.
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