=Current Thunderbird release= {| |'''Version'''||'''New features'''||'''Complete article''' |- |38||The Lightning calendar add-on is now integrated into Thunderbird,<br>Many chat and RSS related bug fixes || [[New in Thunderbird 38.0]] |} =Past Thunderbird releases= {| |'''Version'''||'''New features'''||'''Complete article''' |- |31||Autocomplete now matches any part of email or address,<br>Autocomplete when writing to newsgroup email,<br>NTLM authentication disabled || [[New in Thunderbird 31.0]] |- |24||Enhanced tag quick search,<br>Search order,<br>Ignore threads || [[New in Thunderbird 24]] |- |}

Current Thunderbird release

Version	New features	Complete article
38	The Lightning calendar add-on is now integrated into Thunderbird, Many chat and RSS related bug fixes	New in Thunderbird 38.0

Past Thunderbird releases

Version	New features	Complete article
31	Autocomplete now matches any part of email or address, Autocomplete when writing to newsgroup email, NTLM authentication disabled	New in Thunderbird 31.0
24	Enhanced tag quick search, Search order, Ignore threads	New in Thunderbird 24