TLS 1.0 and emailing from Sage 100

KB 109844 indicates that emailing from Sage 100 is limited to TLS 1.0, and we're starting to see email servers stop supporting this insecure protocol.  Today, one customer is having problems, using O365 email, and we suspect this might be the cause.

The KB article seems to have it's text truncated.  Is there a timeline on when the hotfixes will become available?  Looking at the release notes for 2018.6 and I don't see reference to this being corrected in the latest patch.

(I can see v2019 release notes show TLS 1.2 is supported, which is good, but we're wondering about v2017 / v2018 as indicated in the KB article as having a hotfix available "soon").