You can download MPLAB X IDE 5.35 from the official Microchip Technology website. Here's how:
: Increase memory allocation:
Microchip requires a free account to download legacy software. mplab 5.35 download
MPLAB X 5.35 is available for:
Note: macOS users on newer versions (Catalina and later) may face compatibility issues since v5.35 is a 32-bit application base. Installation Tips You can download MPLAB X IDE 5
Microchip does not host v5.35 on their main "current" page. You must go to the on the official Microchip website to find the installer for Windows, macOS, or Linux. mplab 5.35 download
MPLAB 5.35 Download: The Ultimate Guide for Assembly and Legacy Projects