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NEW
Menu Button for new users
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NEW
Tabs are now drawn in the title bar
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FIXED
An issue causing spell-checking only parts of words in Thunderbird 16 is now fixed (790475)
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FIXED
An issue causing Thunderbird 16 to repeatedly download emails is now fixed (806760)
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FIXED
RSS feeds can now be viewed in the Wide View Layout (531397)
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FIXED
Various fixes and performance improvements
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CHANGED
Mac OS X 10.5 is no longer supported
Thunderbird Beta
Release Notes
v.17.0b1, released: October 12, 2012
Check out whats new and known issues for this version of Thunderbird below. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla.