Wt 4.6.2 is a small patch release that fixes a handful of issues. Check the release notes for more info.
Here are the links:
Wt 4.6.2 (C++): download wt-4.6.2.tar.gz (release notes)
JWt 4.6.2 (Java): download jwt-4.6.2.zip (release notes)
Binary builds for Windows are available on the GitHub releases page.