
new version is recognized as security threat by multiple sources v5.11.2
Norton Security (SONAR.ProcHijack g43, g45, g47)
Windows Smart Screen
Google Chrome
They all reported malware today
Answer

Unfortunately, false positives are common among newly released 7+ Taskbar Tweaker versions. It's not specific to v5.11.2, virtually every version has this issue. Usually, antivirus vendors remove the false detection a couple of days after it's being reported to them.
This problem is mentioned in the FAQ, and was discussed dozens of times in the blog comments, for example:
https://rammichael.com/7-taskbar-tweaker/comment-page-43#comment-11035
https://rammichael.com/about/comment-page-4#comment-10292
And many others. Searching for "False positive" yields more than 170 comments on my blog.
There's also the blog post of Nir Sofer, Antivirus companies cause a big headache to small developers, which has a great description of the problem.

Avira Antivirus reports TR/Crypt.XPACK.Gen2 in v5.11.2
I can't risk getting a crypto trojan onto my system.
Please remove this issue. Thank you!
I understand your claim about the false positive but I'll have to rely on Avira's advice here.
Customer support service by UserEcho
Unfortunately, false positives are common among newly released 7+ Taskbar Tweaker versions. It's not specific to v5.11.2, virtually every version has this issue. Usually, antivirus vendors remove the false detection a couple of days after it's being reported to them.
This problem is mentioned in the FAQ, and was discussed dozens of times in the blog comments, for example:
https://rammichael.com/7-taskbar-tweaker/comment-page-43#comment-11035
https://rammichael.com/about/comment-page-4#comment-10292
And many others. Searching for "False positive" yields more than 170 comments on my blog.
There's also the blog post of Nir Sofer, Antivirus companies cause a big headache to small developers, which has a great description of the problem.