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@neilharvey neilharvey released this 13 Nov 22:06
· 135 commits to master since this release
v4.0
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Memory Usage Optimisations

FileFormatInspector and FileFormat have been changed to improve memory usage. Instead of buffering the stream into a byte array, the source stream is passed to FileFormat.IsMatch for the signature to be verified directly.

For formats which need to read the entire stream (OfficeOpenXml and CompoundFileBinary derived types) the stream conversion is now cached and shared amongst sibling types which need to inspect the converted value. #22

Dependency Changes

Changed dependency to Open-MCDF. As a consequence support for .NET Standard 1.6 has been removed. #21

Nullable Reference Types

Nullable reference types are now used to help express the design intent. In particular, IFileFormatInspector.DetermineFileFormat returns FileFormat? because an unmatched stream will return null to indicate the format could not be determined.

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