Complex sentence: With the InterBase division at Borland under new management, the company released a commercial version of InterBase version 6 and then 6.5, and made several updates to the open source code before announcing that it would no longer actively develop the open source project.
Split into simpler sentences: With the InterBase division at Borland under new management, the company released a commercial version of InterBase version 6 and then 6.5. Borland released several updates to the open source code before announcing that it would no longer actively develop the open source project.