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Parallel native writes, lighter parallel paths, faster first open, 11 bug fixes - #148

Merged

GabrielMarquezMatte merged 38 commits into

masterfrom

develop

Oct 20, 2026

Merged

Parallel native writes, lighter parallel paths, faster first open, 11 bug fixes#148
GabrielMarquezMatte merged 38 commits into
masterfrom
develop

Commits on Oct 16, 2026
- feat: add benchmark for ExcelParser with interned strings
  GabrielMarquezMatte
  committed
  fa606d0
- docs: update Python installation instructions in README
  GabrielMarquezMatte
  committed
  361aeb9
- feat(native): add degree_of_parallelism and batch_rows to xl_write_options
  GabrielMarquezMatte
  committed
  8be3231
- feat(native): write XLSX and XLSB rows in parallel from xl_write_typed
  GabrielMarquezMatte
  committed
  e7327e6
- feat(cpp): expose parallel write options
  GabrielMarquezMatte
  committed
  3fb89de
- feat(rust): expose parallel write options
  GabrielMarquezMatte
  committed
  8a1a00b
- feat(python): expose parallel write options
  
  GabrielMarquezMatte
  and
  claude
  committed
  19d38ff
- docs: document parallel native writes
  
  GabrielMarquezMatte
  and
  claude
  committed
  e99ecf2
Commits on Oct 18, 2026
- perf(writer): encode parallel batches without a deflate window
  GabrielMarquezMatte
  committed
  4c6faa6
Commits on Oct 19, 2026
- perf(writer): write serially when a parallel write has one worker
  
  GabrielMarquezMatte
  and
  claude
  committed
  9128fff
- perf(csv): cut per-chunk allocations in the parallel typed parse
  GabrielMarquezMatte
  committed
  9455837
- fix(csv): keep parallel chunk reads overlapped on Windows
  GabrielMarquezMatte
  committed
  0002d84
- perf(reader): trim JIT work on the first open
  GabrielMarquezMatte
  committed
  d55db99
- fix(native): return an error when xl_open_write_handle cannot create the file
  GabrielMarquezMatte
  committed
  1c3da0a
- fix(csv): let a parallel typed parse be enumerated more than once
  GabrielMarquezMatte
  committed
  744ba8e
- fix(xls): read the Workbook stream at the right offset with 4096-byte sectors
  GabrielMarquezMatte
  committed
  a4a6dae
- fix(xlsx): read t="d" dates in the workbook's date system
  GabrielMarquezMatte
  committed
  093f1a8
- fix(xls): keep continuation sheet names unique
  GabrielMarquezMatte
  committed
  05e6c1f
- fix(writer): reject number formats with characters XML cannot hold
  GabrielMarquezMatte
  committed
  246ec15
- fix(csv): number parallel parse failures like the sequential parser
  GabrielMarquezMatte
  committed
  8d03d43
- fix(zip): check the CRC of an entry that inflates past its declared size
  GabrielMarquezMatte
  committed
  b5b4d9d
- fix(cfb): reject a mini stream chain that ends before the stream does
  GabrielMarquezMatte
  committed
  7955fa3
- fix(xls): read an unpadded last sector when streaming from a file
  GabrielMarquezMatte
  committed
  7600b2b
- feat(benchmarks): add struct-based parsing with interned strings for CSV
  GabrielMarquezMatte
  committed
  c49f719
- feat(ci): add Codecov configuration for language-specific coverage reporting
  GabrielMarquezMatte
  committed
  06c3841
Commits on Oct 20, 2026

Commits

Commits on Oct 16, 2026

Commits on Oct 18, 2026

Commits on Oct 19, 2026

Commits on Oct 20, 2026