The next batch of Bus Pirate v3b is almost ready. It will ship with bootloader v4.4 and firmware v5.3. It will also be the only known batch of Bus Pirates to use an extended temperature range PIC 24FJ64GA002-E/SS. There weren’t any standard industrial temperature range chips available, so Seeed sourced the extended range version.
These “E” PIC chips have a wider operating temperature range and cost a few cents more. The E chips are rated for -40c to 125c, compared to -40c to 85c with standard industrial chips. In practical terms this doesn’t mean anything because another component might not like higher temperatures, and internal oscillator doesn’t allow for overclocking.
In anticipation of ongoing delays, Seeed has backordered industrial range 24FJ64GA002-I/SS PICs too.