I've just released Sup 1.4. It includes some fixes for long-standing bugs, as well as a change in preparation for Xapian 2.0 compatibility. The new release is available from Rubygems, Github, and: https://supmua.dev/releases/ == 1.4 / 2026-04-21 * #343: Draft messages containing non-ASCII characters are now displayed correctly in thread view. * #533, #524: Sup now refuses to start if config.yaml is missing a default account, or no sendmail command is configured. * Improved the lazy-loading behaviour when scrolling down in thread list views. * Sup now gracefully handles RFC2047-encoded words which contain incomplete UTF-8 sequences after decoding, instead of crashing with ArgumentError. * #516: Sup can now load sources.yaml produced by very old versions of Sup, which left a syntactically invalid YAML tag for the SentLoader class. * Fixed error handling behaviour for various scenarios where a draft message is modified outside Sup. * Sup no longer uses deprecated Xapian APIs, for compatibility with Xapian 2.0. * Sup is now tested on Ruby 4.0. * Sup's web site and git repos have moved to: https://supmua.dev/ -- Dan Callaghan