Beta Notes

Thunderbird Desktop

Version 56.0beta | Released October 18, 2017

Check out the notes below for this version of Thunderbird. As always, you’re encouraged to tell us what you think, ask for help, or file a bug in Bugzilla.

These release notes apply to Thunderbird version 56 beta 3 released August 21st, 2017.

What’s New

new

An option under "Tools > Options, Advanced, General" now allows to select whether date/time display will follow the application locale (adjusted by operating system's format settings for that locale) or the locale selected in the operating system's regional settings. In other words, an US English Thunderbird can use, for example, German formats.

What’s Changed

changed

IMAP: When after sending a message storing that sent message fails, the message can now be stored in a local folder

changed

When messages are composed in paragraph format, "body text" and split mail quotes are converted to paragraphs when pressing the enter key

changed

Thunderbird now uses the latest Mozilla technology based on Rust for encoding messages

changed

Various improvements in the Thunderbird themes on all platforms, especially for Windows 10.

What’s Fixed

fixed

Unwanted inline images shown in rogue SPAM messages

fixed

Contacts sidebar: Selection and context menu behavior

fixed

Deleting message from the POP3 server not working when maildir storage was used

fixed

Message disposition flag (replied / forwarded) lost when reply or forwarded message was stored as draft and draft was sent later

fixed

Inline images not scaled to fit when printing

fixed

Selected text from another message sometimes included in a reply

fixed

No authorisation prompt displayed when inserting image into email body although image URL requires authentication

fixed

Blank lines removed from plain text replies under some circumstances

fixed

Large attachments taking a long time to open under some circumstances

fixed

IMAP UIDs > 0x7FFFFFFF not handled properly

Learn What’s Next

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