SoftwareSerial with ATTiny84 using ATtiny library

Knock-Bang failed to relay from both the Uno and Mega board types, with various tiny84/85/13 and various speeds 1MHz, 8MHz, 16MHz, 9.6 MHz, 4.8 MHz.

--- Monitor starting ---

--- Knock-Bang fault: 15 ---

--- Knock-Bang fault: 15 ---

--- Knock-Bang fault: 15 ---

--- Monitor stopped ---

However, going back to the previous version of TinyISP it worked fine on the Uno and various tinys.

--- Monitor starting ---
Caitlin! 
Caitlin! 
Caitlin! 

--- Monitor stopped ---

Does TinyDebugKnockBang need to be updated also?