- Mozilla Thunderbird 60.6.1
MFSA 2019-12 (bsc#1130262)
* CVE-2019-9810 (bmo#1537924)
IonMonkey MArraySlice has incorrect alias information
* CVE-2019-9813 (bmo#1538006)
Ionmonkey type confusion with __proto__ mutations

- Mozilla Thunderbird 60.6.0
* Calendar: Can't create repeating event with end date when using
certain time zones, for example Europe/Minsk
* some minor bugfixes
* using 60.6.0esr Mozilla platform (bsc#1129821)

- Mozilla Thunderbird 60.5.3
* fixed a regression on the Windows platform:
Problem when using "Send to > Mail recipient" on Windows

- Mozilla Thunderbird 60.5.2
* UTF-8 support for MAPISendMail
* Problem with S/MIME certificate verification when receiving email
from Outlook (issue introduced in version 60.5.1)