First of all we'll start with a potential security issue warning for Transmission versions 2.90 and 2.91. Ransomware was added to the official installer so anyone downloading the .dmg would have potentially been infected and should upgrade to 2.92 immediately. Full disclosure here.

I have banned versions 2.90 & 2.91 on our tracker as an added method for notifying users who might not check the news posts.

Anyone using these versions should upgrade to 2.92 immediately.