Thunderbird 68.2.2

Thunderbird

Thunderbird is a free, open-source, cross-platform application for managing email and news feeds. It is a local (rather than a web-based) email application that is powerful yet easy-to-use. Thunderbird is developed, tested, translated and supported by the folks at Mozilla Corporation and by a group of dedicated volunteers. Thunderbird gives you control and ownership over your email. There are lots of add-ons available for Thunderbird that enable you to extend and customize your email experience.

Thunderbird gives you IMAP/POP support, a built-in RSS reader, support for HTML mail, powerful quick search, saved search folders, advanced message filtering, message grouping, labels, return receipts, smart address book LDAP address completion, import tools, and the ability to manage multiple e-mail and newsgroup accounts.

What's fixed in Thunderbird 68.2.2:

Then upgrading a 64bit version of Thunderbird version 60 to version 68, the existing profile wasn't recognized and a new profile was created. Note: If your profile is still not recognized, select it by visiting about:profiles in the Troubleshooting Information.

Known Issues:

When upgrading from Thunderbird version 60 to version 68, add-ons are not automatically updated during the upgrade process. They will however be updated during the add-on update check. It is of course possible to reinstall combatible add-on via the Add-ons Manager or via addons.thunderbird.net.
LDAP lookup not working when SSL is enabled. Workaround: Disable SSL or switch off option "Query OSCP responder servers" in the certificate settings in advanced options.