[MlMt] Under-the-hood changes in latest release

[Benny Kjær Nielsen]

Hi MailMate users,

you might have noticed the lack of test releases the past couple of 
weeks. This is mainly because I was working on some changes in core 
parts of MailMate and this was both a major task and it also meant that 
MailMate was quite unstable in the process (which is also my bad excuse 
for not answering a lot of emails during the same period :) ).

I'm still worried that there might be more or less serious bugs in the 
end result. Experience tells me that many MailMate users fetch test 
releases (holding down ⌥ when clicking “Check Now” in the 
Software Update preferences pane) without necessarily having the time to 
deal with any (major) issues. Therefore the latest release is currently 
only available as a manual update: 
https://updates.mailmate-app.com/archives/MailMate_r5484.tbz

If no major issues are reported within a day or two then I'll release it 
as a regular test release.

For those of you experiencing issues with updating submailboxes in the 
“Tagged” (or similar) mailboxes then this release might solve *some* 
of them.

Here are the release notes:

---

# Revision 5484 (Wednesday, May 9, 2018)

The first item on the list below means that extra care should be taken 
with this test release. There might be unexpected side effects or new 
bugs. The good news is that some common actions are now quite a bit 
snappier, for example, navigating the message list with the message 
preview enabled.

* Changed: Major refactoring of how updated queries/sets are updated 
internally, in particular, how changes are reported to the various parts 
of the user interface.
* Changed: “Print” menu item is greyed out when it’s not available 
(relevant for the two pane and the statistics layouts).
* Fixed: Occasional crashes when getting access tokens on multiple 
threads. This was, in particular, an issue for users with numerous Gmail 
and/or Outlook accounts.
* Fixed: Updating headers with multiple values (like recipient headers 
or the virtual headers handling IMAP keywords) did not always work 
correctly. This might fixes some of the known issues with the Tagged 
mailbox.
* Fixed: Duplicating a mailbox (using the “Mailbox ▸ Duplicate” 
menu item) would often result in messing up the order of mailboxes after 
relaunching MailMate.

---

-- 
Benny
https://freron.com/become_a_mailmate_patron/
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