Though newer, MPLAB X still supports the HI-TECH toolchain as a "Legacy Toolchain," provided you point the IDE to the compiler's bin directory. Finding an "Updated" Download
The HI-TECH C compiler was a industry standard for 8-bit PIC development for years due to its Omniscient Code Generation (OCG) hitech+c+compiler+for+pic10+12+16+mcus+v983+download+updated
For specific older chips, some developers still argue that the specific optimization tweaks in v9.83 produce tighter code than modern general-purpose compilers. Though newer, MPLAB X still supports the HI-TECH
Sometimes, third-party websites may host older versions of compilers or specialized tools. Be cautious when downloading from third-party sites to ensure you're getting legitimate software. hitech+c+compiler+for+pic10+12+16+mcus+v983+download+updated
: You can access the HI-TECH C Archive FTP site via Microchip's Archive page, though you must log in to your Microchip account.