forked from openkylin/imagemagick
34 lines
1.7 KiB
Plaintext
34 lines
1.7 KiB
Plaintext
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ImageMagick version 7 has been released. We encourage you to migrate your
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workstreams to version 7. However, we recognize a significant version 6 user
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community. As such, the ImageMagick development team is committed to maintain,
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but not enhance, version 6 at least until 2028 and possibly beyond.
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We discovered a bug in the pseudo-random generator prior to ImageMagick
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6.9.10-81, the first 3 values repeated because the random state was not
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initialized properly. As a consequence of the fix, expect a different
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numerical sequence when seeding (-seed).
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ImageMagick best practices strongly encourages you to configure a security
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policy that best suits your local environment.
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The ImageMagick development process ensures a stable API and ABI. Before each
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ImageMagick release, we perform a comprehensive security assessment that
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includes memory error, thread data race detection, and continuous fuzzing
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to detect and prevent security vulnerabilities.
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As an analog to linear (RGB) and non-linear (sRGB) color colorspaces, as
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of ImageMagick 6.9.9-29, we introduce the LinearGray colorspace. Gray is
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non-linear grayscale and LinearGray is linear (e.g. -colorspace linear-gray).
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Want more performance from ImageMagick? Try these options:
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add more memory to your system;
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add more cores to your system;
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reduce lock contention with the tcmalloc memory allocation library;
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push large images to a solid-state drive, see large image support.
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If these options are prohibitive, you can reduce the quality of the image
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results. The default build is Q16. If you instead use a Q8 build, you use half
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the memory The tradeoff is reduced precision. For a Q8 build of ImageMagick,
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use this configure script option: --with-quantum-depth=8.
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