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Join UsVersion 50.0beta, first offered to channel users on October 31, 2016
Dictionary setting is restored when editing a draft. Content-Language header (RFC 3282) transmitted with message
Chat: XMPP: Support SASL SCRAM authentication mechanism
When replying to a mailing list, reply will be sent to address in From header ignoring Reply-to header
Formatting toolbar is now left in place when delivery format is switched to plain text only
IMPORTANT: Changed recipient address entry: Arrow-keys now copy the pop-up value to the input field. Mouse-hovered pop-up value can no longer be confirmed with tab or enter key. This restores the behavior of Thunderbird 24.
Reply to own e-mail does not reply with the correct identity
Reply with selected text containing quote resulted in wrong quoting level indication
Links in add-on details did not work in Thunderbird 49 beta.
Troubleshooting Information was incomplete in Thunderbird 49 beta.
Chat: XMPP Resource collisions
Calendar: improved stability when parsing events and tasks.