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perf(merge): replace mergo pre-copy loop with reflection-free native deep merge (3.5× faster) - #2201

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Andriy Knysh (aknysh) merged 40 commits into

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copilot/improve-deep-merge-performance

Mar 24, 2026

Commits on Mar 15, 2026
- Initial plan
  Copilot
  committed
  1a407e5
- perf(merge): replace mergo pre-copy loop with reflection-free native deep merge (3.5× faster)
  
  Copilot
  and
  RB (nitrocode)
  committed
  9c5d6bd
- [autofix.ci] apply automated fixes
  autofix-ci[bot]
  authored
  2112415
- fix(merge): use overflow-safe safeAdd for size computations (fixes GitHub Advanced Security alerts 5236-5239)
  
  Copilot
  and
  RB (nitrocode)
  committed
  a8ed4c5
- fix(merge): restore type-check behavior, handle typed maps, fix tests
  
  Copilot
  and
  RB (nitrocode)
  committed
  006e148
- Merge branch 'main' into copilot/improve-deep-merge-performance
  RB (nitrocode)
  authored
  e660fa3
- test(merge): add 7 coverage tests for uncovered branches in deepMergeNative
  
  Copilot
  and
  RB (nitrocode)
  committed
  c6631c3
- fix: resolve Windows test failures for TestProcessCustomYamlTags
  
  Copilot
  and
  RB (nitrocode)
  committed
  8d9d7e1
Commits on Mar 19, 2026
- fix: address CodeRabbit feedback on deep merge native and workspace handling
  
  Copilot
  and
  RB (nitrocode)
  committed
  c1b1136
- Merge branch 'main' into copilot/improve-deep-merge-performance
  RB (nitrocode)
  authored
  b865d17
- [autofix.ci] apply automated fixes
  autofix-ci[bot]
  authored
  34dc8a3
- Changes before error encountered
  
  Copilot
  and
  RB (nitrocode)
  committed
  31848ab
Commits on Mar 20, 2026
- fix: address remaining CodeRabbit feedback on deep-merge native implementation
  
  Copilot
  and
  RB (nitrocode)
  committed
  0b8c1e2
Commits on Mar 22, 2026
Commits on Mar 23, 2026

Commits

Commits on Mar 15, 2026

Commits on Mar 19, 2026

Commits on Mar 20, 2026

Commits on Mar 22, 2026

Commits on Mar 23, 2026