v5.4.0

Upgrading

No breaking or major changes.

New Features

• Rails 7 support, including contributions from @anthonyshull in #1205.

Changes to behaviour

• Confirmed support by testing against Manticore 4.0 and Sphinx 3.4.

Fixes

• Include instance_exec in ThinkingSphinx::Search::CORE_METHODS by @jdelStrother in #1210.
• Use File.exist? instead of the deprecated File.exists? (#1211).