microsoft/msquic
Dec 2024 – Jun 2026
10 Months active
Languages Used
C++CCmakeCMakeShellYAMLBashJavaScript
Technical Skills
C++Memory ManagementTestingBuild SystemsC ProgrammingC++ Development
Gaurav Singh
PROFILE
Gaurav Singh
Contributed to the microsoft/msquic repository by delivering features and fixes that improved protocol reliability, cross-platform compatibility, and developer productivity. Work included implementing QUIC ACK frequency optimizations, enhancing memory safety with C++ smart pointers, and expanding Linux and Windows packaging support. Addressed concurrency and buffer management issues using C and C++, while refining build systems and CI/CD pipelines with CMake and GitHub Actions. Improved observability through logging corrections and enabled advanced security testing with fuzzing tools. Efforts focused on robust system programming, automation, and platform-specific enhancements, resulting in more stable releases and streamlined deployment across diverse environments and architectures.
Overall Statistics
Feature vs Bugs
53%Features
Repository Contributions
25Total
Bugs
8
Commits
25
Features
9
Lines of code
3,793
Activity Months10
Your Network
4979 peopleSame Organization
@microsoft.com4939
GitOpsMember
Ananta GuptaMember
Abi GicicMember
Abigail HartmanMember
Abram SandersonMember
Adam EttenbergerMember
Adam KrantzMember
Alexandre GattikerMember
Ami HollanderMember
Work History
June 2026
5 Commits • 1 Features
Jun 1, 2026June 2026 focused on robustness, concurrency safety, and release readiness for MSQuic. Key work spanned SpinQuic feature development, critical race fixes, and packaging QA improvements to reduce post-release risk while delivering measurable business value around performance and stability.
5 Commits • 1 Features
Jun 1, 2026June 2026 focused on robustness, concurrency safety, and release readiness for MSQuic. Key work spanned SpinQuic feature development, critical race fixes, and packaging QA improvements to reduce post-release risk while delivering measurable business value around performance and stability.
June 2026
May 2026
6 Commits • 2 Features
May 1, 2026May 2026 monthly summary for microsoft/msquic focusing on reliability, kernel-mode testing coverage, and memory safety, with automation for diagnostics. Delivered targeted fixes and automation improvements that improve runtime stability, enable deeper testing, and enhance triage velocity for regressions. Representative changes spanned: race condition fix in TestStream::StartPing, virtual buffer overflow guard, enabling kernel-mode StreamMultiReceive test, transport parameters cleanup to prevent memory leaks, and CI automation for Stress/RecvFuzz failures with crash-dump collection. Representative commits include bee62fdd6578d2b0e54daaac8b4d12b6dbcf95ea (Fix race in TestStream::StartPing), 36367b6361f836b8a9126a21c0b5124b5c49be6d (Virtual buffer overflow fix), 883b1146be09f5af098dc19ff8b38c2fa29a2002 (Enable kernel-mode Misc.StreamMultiReceive test), f87bfd3febcd44ea09e50032f517da8e0ae804db (Transportparams cleanup), e812277cbe87af0c1527e6d5b61d960aee71ab6b (CI: create/update issues for Stress/RecvFuzz), c62a7e17d72469abf3c0925560267c49109ff128 (Enable ProcDump crash dumps for recvfuzz)
May 2026
6 Commits • 2 Features
May 1, 2026May 2026 monthly summary for microsoft/msquic focusing on reliability, kernel-mode testing coverage, and memory safety, with automation for diagnostics. Delivered targeted fixes and automation improvements that improve runtime stability, enable deeper testing, and enhance triage velocity for regressions. Representative changes spanned: race condition fix in TestStream::StartPing, virtual buffer overflow guard, enabling kernel-mode StreamMultiReceive test, transport parameters cleanup to prevent memory leaks, and CI automation for Stress/RecvFuzz failures with crash-dump collection. Representative commits include bee62fdd6578d2b0e54daaac8b4d12b6dbcf95ea (Fix race in TestStream::StartPing), 36367b6361f836b8a9126a21c0b5124b5c49be6d (Virtual buffer overflow fix), 883b1146be09f5af098dc19ff8b38c2fa29a2002 (Enable kernel-mode Misc.StreamMultiReceive test), f87bfd3febcd44ea09e50032f517da8e0ae804db (Transportparams cleanup), e812277cbe87af0c1527e6d5b61d960aee71ab6b (CI: create/update issues for Stress/RecvFuzz), c62a7e17d72469abf3c0925560267c49109ff128 (Enable ProcDump crash dumps for recvfuzz)
April 2026
2 Commits • 1 Features
Apr 1, 2026April 2026 (2026-04) monthly summary for microsoft/msquic: Two concrete deliverables strengthened reliability and security testing, with measurable business value. Key features delivered: - 1rtt fuzzing support added to the recvfuzz tool to detect QUIC vulnerabilities in 1‑rtt flows (commit cc81b151bc207df68a37506c17a7733dbac39102). Major bugs fixed: - Resolved .NET test failures on OpenSUSE 16 and SLES 16 by improving Linux package validation logic and correcting misleading package versioning guidance (commit d7289a4351de58e23d203663ea509ea2810a5dd5). Impact and accomplishments: - Increased Linux validation reliability on OpenSUSE/SLES 16 and strengthened security testing coverage through fuzzing; reduced ambiguity in packaging docs, accelerating onboarding and CI reliability. Technologies/skills demonstrated: - QUIC protocol fuzz testing, Linux packaging validation, BusyBox-aware scripting considerations, cross-distro validation, code/documentation quality improvements.
2 Commits • 1 Features
Apr 1, 2026April 2026 (2026-04) monthly summary for microsoft/msquic: Two concrete deliverables strengthened reliability and security testing, with measurable business value. Key features delivered: - 1rtt fuzzing support added to the recvfuzz tool to detect QUIC vulnerabilities in 1‑rtt flows (commit cc81b151bc207df68a37506c17a7733dbac39102). Major bugs fixed: - Resolved .NET test failures on OpenSUSE 16 and SLES 16 by improving Linux package validation logic and correcting misleading package versioning guidance (commit d7289a4351de58e23d203663ea509ea2810a5dd5). Impact and accomplishments: - Increased Linux validation reliability on OpenSUSE/SLES 16 and strengthened security testing coverage through fuzzing; reduced ambiguity in packaging docs, accelerating onboarding and CI reliability. Technologies/skills demonstrated: - QUIC protocol fuzz testing, Linux packaging validation, BusyBox-aware scripting considerations, cross-distro validation, code/documentation quality improvements.
April 2026
December 2025
1 Commits • 1 Features
Dec 1, 2025Monthly summary for 2025-12: Focused on expanding Linux distribution packaging compatibility for msquic. Delivered distro-specific packaging keys and validation to improve installation robustness and distro compatibility across OpenSUSE, SLES, and RHEL 10, including architecture-specific handling for RHEL 10. This work reduces deployment friction for enterprise environments and broadens supported platforms. Commit 9639f53d7358e4990000dd70bfd61d771d242bef added new keys for OpenSUSE 16 and SLES16 and validation for RHEL 10 (#5689).
December 2025
1 Commits • 1 Features
Dec 1, 2025Monthly summary for 2025-12: Focused on expanding Linux distribution packaging compatibility for msquic. Delivered distro-specific packaging keys and validation to improve installation robustness and distro compatibility across OpenSUSE, SLES, and RHEL 10, including architecture-specific handling for RHEL 10. This work reduces deployment friction for enterprise environments and broadens supported platforms. Commit 9639f53d7358e4990000dd70bfd61d771d242bef added new keys for OpenSUSE 16 and SLES16 and validation for RHEL 10 (#5689).
October 2025
1 Commits
Oct 1, 2025Monthly Summary for 2025-10 focusing on the microsoft/msquic repository. The work emphasizes observability improvements and code correctness in logging, delivering measurable business value with minimal risk. Key features delivered: - DSCP Logging Format Correction in msquic: Fixed incorrect logging of DSCP values by changing the format specifier from signed integer (%d) to unsigned integer (%u) across all log files and definitions to accurately represent the inherently unsigned DSCP value. Major bugs fixed: - DSCP Logging Format Correction (bug): Implemented across the repository to ensure DSCP is logged correctly. Commit: 364b9a25edd6e18efc9a6f6708a213e553c57e2d with message "Change the format specifier (#5523)". Overall impact and accomplishments: - Improved data quality in telemetry and logging, enabling more reliable network diagnostics and faster incident response. - Reduced risk of misinterpretation of DSCP values in logs, leading to better policy enforcement and QoS debugging. - Non-breaking, logging-only change with no API/ABI impact, simplifying maintenance and auditing. Technologies/skills demonstrated: - C/C++ logging instrumentation and format specifiers. - Source-level consistency checks across multiple log definitions. - Understanding of DSCP values and their proper representation in telemetry. - Focus on business value through improved observability and data accuracy.
1 Commits
Oct 1, 2025Monthly Summary for 2025-10 focusing on the microsoft/msquic repository. The work emphasizes observability improvements and code correctness in logging, delivering measurable business value with minimal risk. Key features delivered: - DSCP Logging Format Correction in msquic: Fixed incorrect logging of DSCP values by changing the format specifier from signed integer (%d) to unsigned integer (%u) across all log files and definitions to accurately represent the inherently unsigned DSCP value. Major bugs fixed: - DSCP Logging Format Correction (bug): Implemented across the repository to ensure DSCP is logged correctly. Commit: 364b9a25edd6e18efc9a6f6708a213e553c57e2d with message "Change the format specifier (#5523)". Overall impact and accomplishments: - Improved data quality in telemetry and logging, enabling more reliable network diagnostics and faster incident response. - Reduced risk of misinterpretation of DSCP values in logs, leading to better policy enforcement and QoS debugging. - Non-breaking, logging-only change with no API/ABI impact, simplifying maintenance and auditing. Technologies/skills demonstrated: - C/C++ logging instrumentation and format specifiers. - Source-level consistency checks across multiple log definitions. - Understanding of DSCP values and their proper representation in telemetry. - Focus on business value through improved observability and data accuracy.
October 2025
August 2025
2 Commits
Aug 1, 2025August 2025 (2025-08) monthly summary for microsoft/msquic: Implemented ARM XDP Build Compatibility Fix to disable XDP support on ARM/AArch64, preventing build and runtime issues and improving cross-architecture reliability. The change updates CMakeLists.txt to explicitly disable QUIC_LINUX_XDP_ENABLED for ARM architectures, reducing platform-specific failures and accelerating ARM CI readiness.
August 2025
2 Commits
Aug 1, 2025August 2025 (2025-08) monthly summary for microsoft/msquic: Implemented ARM XDP Build Compatibility Fix to disable XDP support on ARM/AArch64, preventing build and runtime issues and improving cross-architecture reliability. The change updates CMakeLists.txt to explicitly disable QUIC_LINUX_XDP_ENABLED for ARM architectures, reducing platform-specific failures and accelerating ARM CI readiness.
July 2025
1 Commits
Jul 1, 2025July 2025 monthly summary for microsoft/msquic: Implemented a safe registry cleanup to preserve per-application settings during global storage clearing. Replaced RegDeleteTreeA with precise value deletions within the registry key, preventing unintended loss of per-app config. This targeted fix, associated with commit 2623c07df62b4bd171f469fb29c2714b6735b676 (Removed RegDeleteTreeA usage in storage_winuser) addresses issue #5182 and improves storage integrity in Windows environments.
1 Commits
Jul 1, 2025July 2025 monthly summary for microsoft/msquic: Implemented a safe registry cleanup to preserve per-application settings during global storage clearing. Replaced RegDeleteTreeA with precise value deletions within the registry key, preventing unintended loss of per-app config. This targeted fix, associated with commit 2623c07df62b4bd171f469fb29c2714b6735b676 (Removed RegDeleteTreeA usage in storage_winuser) addresses issue #5182 and improves storage integrity in Windows environments.
July 2025
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025 — Focused on stabilizing Windows build/test workflows and unifying Windows API usage across the msquic stack. The work improves CI reliability, consistency across library/tests/tools, and positions the project for smoother Windows support going forward.
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025 — Focused on stabilizing Windows build/test workflows and unifying Windows API usage across the msquic stack. The work improves CI reliability, consistency across library/tests/tools, and positions the project for smoother Windows support going forward.
January 2025
2 Commits • 2 Features
Jan 1, 2025January 2025 — msquic: Implemented protocol and platform improvements with clear business value. Delivered QUIC ACK Frequency optimization per draft-ietf-quic-ack-frequency-10, including reordering threshold and immediate ACKs based on packet order/gaps, accompanied by refactoring and added unit tests. Also enabled Windows UCRT NuGet package support in CMakeLists.txt to improve build compatibility with modern Windows toolchains. No critical bugs fixed this month; the focus was on stability, performance tuning, and developer productivity.
2 Commits • 2 Features
Jan 1, 2025January 2025 — msquic: Implemented protocol and platform improvements with clear business value. Delivered QUIC ACK Frequency optimization per draft-ietf-quic-ack-frequency-10, including reordering threshold and immediate ACKs based on packet order/gaps, accompanied by refactoring and added unit tests. Also enabled Windows UCRT NuGet package support in CMakeLists.txt to improve build compatibility with modern Windows toolchains. No critical bugs fixed this month; the focus was on stability, performance tuning, and developer productivity.
January 2025
December 2024
1 Commits
Dec 1, 2024December 2024 – Microsoft/msquic: Memory management safety enhancement in QuicTestConnectionPriority implemented via std::unique_ptr for MsQuicConnection. This change ensures automatic deallocation, prevents potential memory leaks, and preserves existing behavior. Commit 99348663ec97b696f8e5a1449ce7d5a80a055e09 (“added unique pointer for connection (#4718)”).
December 2024
1 Commits
Dec 1, 2024December 2024 – Microsoft/msquic: Memory management safety enhancement in QuicTestConnectionPriority implemented via std::unique_ptr for MsQuicConnection. This change ensures automatic deallocation, prevents potential memory leaks, and preserves existing behavior. Commit 99348663ec97b696f8e5a1449ce7d5a80a055e09 (“added unique pointer for connection (#4718)”).
Activity
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Quality Metrics
Correctness95.2%
Maintainability87.2%
Architecture88.0%
Performance86.4%
AI Usage22.4%
Skills & Technologies
Programming Languages
BashCC++CMakeCmakeJavaScriptPowerShellShellYAML
Technical Skills
API DevelopmentAPI developmentBuild SystemBuild System ConfigurationBuild SystemsCC ProgrammingC programmingC++C++ DevelopmentC++ developmentCI/CDCode GenerationConfiguration ManagementContinuous Integration
Repositories Contributed To
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