My working unpac space for OCaml projects in development
doc: legacy support is now disabled by default
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vendor/git/zstd-c/CHANGELOG
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vendor/git/zstd-c/CHANGELOG
···
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v1.6.0 (Dec 2025)
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api: legacy format support is now disabled by default
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build: `ZSTD_LEGACY_SUPPORT` defaults to `0` in Makefile and CMake
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V1.5.7 (Feb 2025)
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fix: compression bug in 32-bit mode associated with long-lasting sessions
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api: new method `ZSTD_compressSequencesAndLiterals()` (#4217, #4232)
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vendor/git/zstd-c/lib/README.md
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vendor/git/zstd-c/lib/README.md
···
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- `make` : generates both static and dynamic libraries
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- `make install` : install libraries, headers and pkg-config in local system directories
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`libzstd` default scope is extensive, including compression, decompression, dictionary builder,
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and support for decoding legacy formats >= v0.5.0 by default.
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`libzstd` default scope includes compression, decompression, and dictionary builder.
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Note: starting v1.6.0, support for decoding legacy formats is disabled by default.
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See _modular build_ below to learn how to enable it.
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The scope can be reduced on demand (see paragraph _modular build_).
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#### Multiarch Support
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Specifying a number limits versions supported to that version onward.
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For example, `ZSTD_LEGACY_SUPPORT=2` means : "support legacy formats >= v0.2.0".
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Conversely, `ZSTD_LEGACY_SUPPORT=0` means "do __not__ support legacy formats".
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By default, this build macro is set as `ZSTD_LEGACY_SUPPORT=5`.
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By default, this build macro is set as `ZSTD_LEGACY_SUPPORT=0` (disabled).
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Decoding supported legacy format is a transparent capability triggered within decompression functions.
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It's also allowed to invoke legacy API directly, exposed in `lib/legacy/zstd_legacy.h`.
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Each version does also provide its own set of advanced API.