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Version 4.2.1

Release Date: June 16, 2022

4.2.1 release of CodeIgniter4

BREAKING

Behavior Changes

  • Guessing the file extension from the MIME type has been changed if the proposed extension is not valid. Previously, the guessing would terminate early and return null. Now, if a proposed extension is given and is invalid, the MIME guessing will continue checking using the mapping of extension to MIME types.
  • If there is a cookie with a prefixed name and a cookie with the same name without a prefix, the previous get_cookie() had the tricky behavior of returning the cookie without the prefix. This behavior has now been fixed as a bug. See Upgrading for details.

Bugs Fixed

See the repo's CHANGELOG_4.2.md for a complete list of bugs fixed.