Log Message:
Update to 60.6.0

Changelog:
60.6.0
fixed
Calendar: Can't create repeating event with end date when using certain time \ 
zones, for example Europe/Minsk

60.5.3
fixed

Problem when using "Send to > Mail recipient" on Windows introduced \ 
in version 60.5.2.
If files with non-ASCII characters in their name still cause a malfunction, use \ 
one of the following two alternative solutions:

    Reset this registry entry
    HKLM\SOFTWARE\Clients\Mail\Mozilla Thunderbird - SupportUTF8 to 0. Also \ 
reset HKLM\SOFTWARE\Wow6432Node\Clients\Mail\Mozilla Thunderbird - SupportUTF8 \ 
if present.
    On Windows 10, set the system code page to UTF-8 (beta feature, see Region \ 
Settings, system locale)