Bertom Audio has released Vocal Compressor, a simple compressor plug-in optimized for speech and singing voice for Windows, macOS and Linux, in VST3, AU and AAX formats.
Vocal Compressor is heavily inspired by how mastering limiters work and features the same kind of lookahead (about 1ms) and program dependency but in a soft knee compression context.
Additionally, the "HF Sens" sidechain filter allows you to fine-tune the sensitivity to high frequencies. It is similar to what you can find on the back of a famous optical compressor.
Price: Free / Pay what you want.
