Open your Creative Cloud app right now. If you are a subscriber, click "Apps" -> "Other Versions" and install Illustrator CS6 or CC 2018 today. You will be shocked at how fast your workflow becomes. Have a question about a specific old version? Leave a comment below. Remember: If the download link looks like a pirate ship, sail away.
If you want only CS6, remove newer versions first. If you want both, install the oldest version first (e.g., install CS6, then CC 2024). illustrator old version download best
Older installers often hang because modern antivirus blocks them. Temporarily disable Windows Defender or Mac Gatekeeper. Open your Creative Cloud app right now