This is probably the last upgrade of Bearhtml to be made available before Pegasus Mail V5 becomes available. Basic support for Html V5 is included in this release, and some CSS V3 is also included. The implementation of Html V5 is somewhat problematic, as the software vendors implementing the conversion from Html V4 to Html V5 have different interpretations of the new functions. Also of concern is that migration of Html V4 code is being implemented by converting to CSS V3 instead of Html V5.
From time to time I may release further upgrades to resolve these vendor implementation problems. Please bear in mind that you can flip over to using IERenderer if Bearhtml cannot resolve displays correctly.