Steinberg says that it’s time to retire your old 32-bit plugins. From their next major release onward, they’ll only be supporting 64-bit software.
Here’s the text of their announcement:
As announced earlier, we would like to remind you that from next major release onward we’ll only be supporting 64-bit software, as this is the current technology guaranteeing the best possible performance and user experience. As a consequence we are discontinuing the Steinberg VST Bridge, which was meant as an aid for the smooth transition from 32-bit to 64-bit.
For all of you interested in using legacy 32-bit products there are third-party products like jBridge that can help. To ensure a stable and optimal system we nevertheless strongly recommend using 64-bit and VST 3 software only. Please contact third-party plug-in developers to learn more about latest product updates and when 64-bit/VST 3 versions will be released, should they still be unavailable.