stellar/stellar-core
Oct 2024 – Jan 2026
13 Months active
Languages Used
C++JSONPythonSQLShellMarkdownXDRJavaScript
Technical Skills
Backend DevelopmentConfiguration ManagementError HandlingC++Data AnalysisData Visualization
Brett Boston
PROFILE
Brett Boston
Brett Boston contributed to the stellar/stellar-core repository by engineering robust backend features and reliability improvements over thirteen months. He developed and optimized transaction signature validation, introducing background processing and cache enhancements using C++ and Python to improve throughput and security. Brett refactored legacy survey systems, standardized value parsing, and expanded test topologies, demonstrating strong skills in code refactoring, system design, and testing. His work addressed protocol upgrades, configuration safety, and error handling, reducing operational risk and improving maintainability. Through targeted documentation, performance monitoring, and collaborative development, Brett delivered solutions that strengthened network stability and streamlined upgrade and validation workflows.
Overall Statistics
Feature vs Bugs
65%Features
Repository Contributions
24Total
Bugs
7
Commits
24
Features
13
Lines of code
4,635
Activity Months13
Your Network
40 peopleWork History
January 2026
2 Commits • 2 Features
Jan 1, 2026Month: 2026-01 — Delivered targeted code quality and test infrastructure improvements in Stellar Core. Key refactorings standardized value handling via toStellarValue, enhanced robustness of parsing, and expanded test topology to improve coverage and clarity. These changes reduce production risk, improve maintainability, and demonstrate strong technical execution across refactoring and test design.
2 Commits • 2 Features
Jan 1, 2026Month: 2026-01 — Delivered targeted code quality and test infrastructure improvements in Stellar Core. Key refactorings standardized value handling via toStellarValue, enhanced robustness of parsing, and expanded test topology to improve coverage and clarity. These changes reduce production risk, improve maintainability, and demonstrate strong technical execution across refactoring and test design.
January 2026
December 2025
3 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for stellar-core focused on delivering secure, reliable transaction processing and robust upgrade reliability. Key features delivered include enabling Background Transaction Signature Verification by default with a jitter injection framework to improve robustness and throughput. Major bugs fixed include upgrading parameter loading robustness with versioning and enhanced logging, and clarifying the overUpgradeTimeoutLimit logic to prevent incorrect upgrades. Overall impact includes improved security, better performance under load, maintainability improvements, and reduced risk for operator deployments. Demonstrated technologies/skills include jitter injection for concurrency resilience, configuration evolution with versioned parameters, enhanced logging, and targeted refactoring for clarity.
December 2025
3 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for stellar-core focused on delivering secure, reliable transaction processing and robust upgrade reliability. Key features delivered include enabling Background Transaction Signature Verification by default with a jitter injection framework to improve robustness and throughput. Major bugs fixed include upgrading parameter loading robustness with versioning and enhanced logging, and clarifying the overUpgradeTimeoutLimit logic to prevent incorrect upgrades. Overall impact includes improved security, better performance under load, maintainability improvements, and reduced risk for operator deployments. Demonstrated technologies/skills include jitter injection for concurrency resilience, configuration evolution with versioned parameters, enhanced logging, and targeted refactoring for clarity.
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025: Focused on upgrading the upgrade governance flow in stellar-core, delivering two new upgrade management parameters to improve efficiency and reliability of network upgrades. The changes reduce upgrade downtime, clarify behavior around upgrade expiration and nomination timeouts, and align governance with network stability requirements.
1 Commits • 1 Features
Nov 1, 2025November 2025: Focused on upgrading the upgrade governance flow in stellar-core, delivering two new upgrade management parameters to improve efficiency and reliability of network upgrades. The changes reduce upgrade downtime, clarify behavior around upgrade expiration and nomination timeouts, and align governance with network stability requirements.
November 2025
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for stellar-core: Delivered a centralized transaction signature validation path with support for background validation, expanded and tuned the verification cache, and broadened metrics to distinguish signature checks during general validation versus transaction validation. Implemented targeted tests and performance analyses to validate robustness and scalability. Result: improved throughput, reduced latency in transaction verification, and enhanced observability for production monitoring.
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for stellar-core: Delivered a centralized transaction signature validation path with support for background validation, expanded and tuned the verification cache, and broadened metrics to distinguish signature checks during general validation versus transaction validation. Implemented targeted tests and performance analyses to validate robustness and scalability. Result: improved throughput, reduced latency in transaction verification, and enhanced observability for production monitoring.
August 2025
1 Commits
Aug 1, 2025August 2025 monthly summary for Stellar Core focused on improving robustness of background transaction processing. Implemented a source account existence check before validating transaction signatures in the background flow, addressing potential crashes when the source account is missing and safeguarding against malformed/malicious transactions. Added tests for non-existent source accounts to verify the fix and strengthen test coverage. The changes reduce crash risk in high-throughput processing and improve overall reliability of transaction validation under load.
1 Commits
Aug 1, 2025August 2025 monthly summary for Stellar Core focused on improving robustness of background transaction processing. Implemented a source account existence check before validating transaction signatures in the background flow, addressing potential crashes when the source account is missing and safeguarding against malformed/malicious transactions. Added tests for non-existent source accounts to verify the fix and strengthen test coverage. The changes reduce crash risk in high-throughput processing and improve overall reliability of transaction validation under load.
August 2025
July 2025
1 Commits
Jul 1, 20252025-07: Focused on improving test stability and cross-platform reliability in stellar-core. Delivered a targeted fix to macOS RTTI-related test instability by replacing template-based exception handling with a macro REQUIRE_THROWS_AS_VARIANT, ensuring RTTI consistency across compilation units. The change preserves core functionality and reduces flaky test failures, contributing to more reliable CI and release readiness.
July 2025
1 Commits
Jul 1, 20252025-07: Focused on improving test stability and cross-platform reliability in stellar-core. Delivered a targeted fix to macOS RTTI-related test instability by replacing template-based exception handling with a macro REQUIRE_THROWS_AS_VARIANT, ensuring RTTI consistency across compilation units. The change preserves core functionality and reduces flaky test failures, contributing to more reliable CI and release readiness.
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary for stellar-core: Delivered targeted XDR validation robustness improvements to harden transaction validation and reduce runtime crashes. Key changes include improved error handling for enum conversions, a depth check added to parsing, a tightened marshaling stack limit, and graceful handling of unknown enum values. These adjustments increase reliability of cross-service validation and resilience against malformed inputs. A concurrent Overlay cleanup task (commit 351c7e2cdd84cc1abf9b7b3106c44625b57645a5) improved maintainability of the validation paths; co-authored by Garand Tyson. Overall, these work items reduce operational risk, improve stability under peak loads, and lay groundwork for safer protocol evolution. Skills demonstrated include robust error handling, parsing reliability, code quality improvements, and collaborative development.
1 Commits
Jun 1, 2025June 2025 monthly summary for stellar-core: Delivered targeted XDR validation robustness improvements to harden transaction validation and reduce runtime crashes. Key changes include improved error handling for enum conversions, a depth check added to parsing, a tightened marshaling stack limit, and graceful handling of unknown enum values. These adjustments increase reliability of cross-service validation and resilience against malformed inputs. A concurrent Overlay cleanup task (commit 351c7e2cdd84cc1abf9b7b3106c44625b57645a5) improved maintainability of the validation paths; co-authored by Garand Tyson. Overall, these work items reduce operational risk, improve stability under peak loads, and lay groundwork for safer protocol evolution. Skills demonstrated include robust error handling, parsing reliability, code quality improvements, and collaborative development.
June 2025
April 2025
3 Commits • 2 Features
Apr 1, 2025April 2025: Focused on performance optimization and testing ergonomics for stellar-core. Delivered an experimental background transaction signature validation offload, enabling signature checks for network-received transactions to run on a background thread and conditioning integration on BACKGROUND_OVERLAY_PROCESSING. Updated tests and CapacityTrackedMessage processing to route through the new optimization path, with commits c6209da5ec7eccd2af357be29f4c1b898c944610. Introduced a test-only config option to skip specific HIGH/CRITICAL validator checks, wired into Config parsing, included in the example config, and supported by test/documentation updates (commits 104f812a12f8aaaa42aa5e6b552941e81e36462b and 42bef3d4225dcd7e52b6093cc2cac57f42257933). Added testing support and configuration enhancements to improve testability in non-production builds.
April 2025
3 Commits • 2 Features
Apr 1, 2025April 2025: Focused on performance optimization and testing ergonomics for stellar-core. Delivered an experimental background transaction signature validation offload, enabling signature checks for network-received transactions to run on a background thread and conditioning integration on BACKGROUND_OVERLAY_PROCESSING. Updated tests and CapacityTrackedMessage processing to route through the new optimization path, with commits c6209da5ec7eccd2af357be29f4c1b898c944610. Introduced a test-only config option to skip specific HIGH/CRITICAL validator checks, wired into Config parsing, included in the example config, and supported by test/documentation updates (commits 104f812a12f8aaaa42aa5e6b552941e81e36462b and 42bef3d4225dcd7e52b6093cc2cac57f42257933). Added testing support and configuration enhancements to improve testability in non-production builds.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary highlighting key feature delivery, major bug fix, impact, and skills demonstrated for Stellar Core work.
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary highlighting key feature delivery, major bug fix, impact, and skills demonstrated for Stellar Core work.
February 2025
January 2025
3 Commits • 2 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for stellar-core: Delivered network protocol alignment with the upgraded network, stabilized tests for PostgreSQL-disabled environments, and introduced a thread type introspection API to improve correctness and debugging. These efforts enhance network integrity, test reliability, and developer observability while maintaining performance and compatibility across the Stellar ecosystem.
January 2025
3 Commits • 2 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for stellar-core: Delivered network protocol alignment with the upgraded network, stabilized tests for PostgreSQL-disabled environments, and introduced a thread type introspection API to improve correctness and debugging. These efforts enhance network integrity, test reliability, and developer observability while maintaining performance and compatibility across the Stellar ecosystem.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for stellar-core: Focused on documentation quality improvements for OverlaySurvey to support operators and maintainability. Delivered a targeted documentation enhancement, fixed a broken admin guide link, clarified parameters, and documented the --startPhase option for attaching to running surveys. This work enhances operational clarity and reduces onboarding time, laying groundwork for smoother future feature adoption and lowering support load.
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for stellar-core: Focused on documentation quality improvements for OverlaySurvey to support operators and maintainability. Delivered a targeted documentation enhancement, fixed a broken admin guide link, clarified parameters, and documented the --startPhase option for attaching to running surveys. This work enhances operational clarity and reduces onboarding time, laying groundwork for smoother future feature adoption and lowering support load.
December 2024
November 2024
2 Commits • 2 Features
Nov 1, 20242024-11 monthly summary for stellar-core focusing on delivered features, testing improvements, and business impact. Highlights include data-driven load testing enhancements, expanded nomination validation tests, and a shift toward robustness and scalable verification ahead of protocol upgrades.
November 2024
2 Commits • 2 Features
Nov 1, 20242024-11 monthly summary for stellar-core focusing on delivered features, testing improvements, and business impact. Highlights include data-driven load testing enhancements, expanded nomination validation tests, and a shift toward robustness and scalable verification ahead of protocol upgrades.
October 2024
1 Commits
Oct 1, 2024Monthly summary for 2024-10: Stellar Core configuration safety improvements to prevent misconfigurations and preserve network stability.
1 Commits
Oct 1, 2024Monthly summary for 2024-10: Stellar Core configuration safety improvements to prevent misconfigurations and preserve network stability.
October 2024
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Quality Metrics
Correctness93.0%
Maintainability86.2%
Architecture85.0%
Performance84.2%
AI Usage22.4%
Skills & Technologies
Programming Languages
C++JSONJavaScriptMarkdownPythonSQLShellTOMLXDR
Technical Skills
Backend DevelopmentBuild SystemsC++C++ developmentCachingCode RefactoringConfiguration ManagementCryptographyData AnalysisData VisualizationDeprecationDistributed SystemsDocumentationError HandlingNetwork Protocol Versioning
Repositories Contributed To
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