Where to obtain notmuch 0.28.3
===========================
  https://notmuchmail.org/releases/notmuch-0.28.3.tar.gz

Which can be verified with:

  https://notmuchmail.org/releases/notmuch-0.28.3.tar.gz.sha256
  4e212d8b4ae30da04edb05d836dcdb569488ff6760706cecb882488eb1710eec  notmuch-0.28.3.tar.gz

  https://notmuchmail.org/releases/notmuch-0.28.3.tar.gz.sha256.asc
  (signed by David Bremner)

What's new in notmuch 0.28.3
=========================

Library
-------

Fix a bug with the internal data structure _notmuch_string_map_t used
by message properties.

Build System
------------

Serialize calls to sphinx-build to avoid race condition.

What is notmuch
===============
Notmuch is a system for indexing, searching, reading, and tagging
large collections of email messages in maildir or mh format. It uses
the Xapian library to provide fast, full-text search with a convenient
search syntax.

For more about notmuch, see https://notmuchmail.org