Groups.io: Changelog

BUGFIX: If there's only one photo album, disable the Move button when viewing a photo.
NEW: If you send a message with just the word 'unsubscribe' and nothing else to a group, we now treat it as an unsubscribe request, like sending a message to +unsubscribe (still requires confirmation).
BUGFIX: When following a topic, we send out all existing messages. We were not adding the group subject tag to the messages.
NEW: On the /topic and /message pages, there now is a Follow/Unfollow/Mute/Unmute button.
CHANGE: Changed 'Reason' column title in the Past Members page to 'History'.

DOCS: Updates from Nina
INTERNAL: Improvements to internal admin tools and dashboards
INTERNAL: The second mail server is now processing half of all outbound email.

BUGFIX: In the /topic view, with infinite scroll, some messages would be displayed without the message footer.
BUGFIX: Trial premium groups weren't being downgraded to free after the trial was over.
SYSADMIN: Added two additional web servers to deal with increased load.
CHANGE: Changed what we consider a valid email address to make it more strict and to reject extended unicode characters.

NEW: In the Billing tab, for premium groups, show which features would be enabled/disabled if you downgraded to the free plan.
CHANGE: Formatting changes to the Past Members page.
BUGFIX: In a premium group, clicking on a rejected member activity log item will now bring you to the /pastmember page.
CHANGE: Work to make DNS resolution when sending out email more robust, including adding more DNS resolver caches and changing some of the logic in the code.

SYSADMIN: More work to bring up the second email server; working to get Microsoft to stop rate-limiting it.
DOCS: Updates to the Owners Manual from Nina.
INTERNAL: Switched the internal dashboards/admin system to a different domain to fix cookie issues I was having.
INTERNAL: More work on converting templates to quicktemplate.

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