Requirements

Dovecot CE v2.3.17+

Dovecot CE < v2.3.17

Use fts-flatcurve version 0.2.0 if you need support for older Dovecot CE versions.

Dovecot CE 2.3.x ONLY!

This code only works with Dovecot CE 2.3.x releases. fts-flatcurve has been integrated with Dovecot CE 2.4 as the default FTS engine and is now maintained in core.

• It is recommended that you use the most up-to-date version of Dovecot (see https://repo.dovecot.org/). New code is developed and tested against the Dovecot git main branch. This code appears on the release-2.3 branch.
• Flatcurve relies on Dovecot's built-in FTS stemming library.
  • REQUIREMENTS
    • stemmer support (--with-stemmer)
  • Optional
    • icu support (--with-icu)
    • libtextcat support (--with-textcat)

Xapian 1.2.x+

• Tested on Xapian 1.2.22, 1.4.11, 1.4.18, 1.4.19, 1.4.22
• 1.4+ is required for automatic optimization support
  • 1.2.x versions require manual optimization (this is a limitation of the Xapian library)