Mplab C18 347 Full Version Best =link= Guide
: Bundles extensive peripheral libraries for PWM, SPI, I2C, UART, and math functions. MPLAB IDE Integration
Version 3.47 was one of the final releases in the C18 lineage (followed shortly by v3.47 with later patches, but generally considered the last stable major build before the XC8 migration). mplab c18 347 full version best