annotate mupdf-source/thirdparty/curl/docs/DEPRECATE.md @ 40:aa33339d6b8a upstream

ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
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1 # Items to be removed from future curl releases
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3 If any of these deprecated features is a cause for concern for you, please
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4 email the curl-library mailing list as soon as possible and explain to us why
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5 this is a problem for you and how your use case can't be satisfied properly
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6 using a work around.
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8 ## PolarSSL
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10 The polarssl TLS library has not had an update in over three years. The last
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11 release was done on [January 7
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12 2016](https://tls.mbed.org/tech-updates/releases). This library has been
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13 superseded by the mbedTLS library, which is the current incarnation of
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14 PolarSSL. curl has supported mbedTLS since 2015.
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16 It seems unlikely that this library is a good choice for users to get proper
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17 TLS security and support today and at the same time there are plenty of good
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18 and updated alternatives.
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20 I consider it likely that the existing users of curl + polarssl out there are
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21 stuck on old curl versions and when they eventually manage to update curl they
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22 should also be able to update their TLS library.
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24 ### State
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26 In the curl 7.65.2 release (July 17, 2019) the ability to build with this TLS
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27 backend is removed from the configure script. The code remains and can be
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28 built and used going forward, but it has to be manually enabled in a build (or
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29 the configure removal reverted).
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31 ### Removal
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33 The support for PolarSSL and all code for it will be completely removed from
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34 the curl code base six months after it ships disabled in configure in a
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35 release. In the release on or near February 27, 2020. (possibly called curl
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36 7.70.0).