Adobe removed the public product page in 2022. The only official access is via FTP or the Distribution License Agreement page for existing license holders.
| Update Description | Direct Download Link | |-------------------|----------------------| | Acrobat DC 2015.006.30506 (Windows 64-bit) | https://ardownload.adobe.com/pub/adobe/acrobat/win/Acrobat2015/2015.006.30506/AcroProDCUpd1500630506.msp | | Acrobat DC 2015.006.30506 (Mac) | https://ardownload.adobe.com/pub/adobe/acrobat/mac/Acrobat2015/2015.006.30506/AcrobatDCUpd1500630506.dmg | adobe acrobat pro dc 2015 update download
If you absolutely must run 2015, isolate that machine from the internet. Use it only as a PDF reader/editor in an air-gapped environment. Adobe removed the public product page in 2022