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Update EXPAT to version 2.4.1

Julien Osman requested to merge update_expat into develop


The SuperBuild uses EXPAT version 2.3.0. This version is marked as "VULNERABLE" by the development team, and users are invited to use the version 2.4.1.

Implementation Details

Set the version of EXPAT to 2.4.1.

Additional notes

It might be a good idea to backport this fix to OTB 7.3.1.


The copyright owner is CNES and has signed the ORFEO ToolBox Contributor License Agreement.

Check before merging:

  • All discussions are resolved
  • At least 2 👍 votes from core developers, no 👎 vote.
  • The feature branch is (reasonably) up-to-date with the base branch
  • Dashboard is green
  • Copyright owner has signed the ORFEO ToolBox Contributor License Agreement
  • Optionally, run git diff develop... -U0 --no-color | -p1 -i on latest changes and commit

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