This version bump contains the following fixes:
v8:
- Avoid a segmentation fault when notmuch_message_get_header() returns NULL. (Patch by Víctor M. Jáquez <vjaquez@igalia.com>).
v9:
- Do not use the deprecated notmuch_query_count_messages_st function when using Notmuch 0.25. (Patch by Adam Ruzicka <a.ruzicka@outlook.com>.)
We already had this patch in our tree.
- Fix crash in when running queries and the program is build with Notmuch 0.25. (Patch by Joshua Krusell <joshua.krusell@v-dem.net>).
- Fix conditional compilation when using Notmuch 0.25. (Patch by David Bremner <bremner@debian.org>).
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