URLs of the index files used by the software update client on OS X

osx-software-update-urls.md

10.7 (Lion)

• https://swscan.apple.com/content/catalogs/others/index-lion-snowleopard-leopard.merged-1.sucatalog

10.8 (Mountain Lion)

• https://swscan.apple.com/content/catalogs/others/index-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-mountainlionseed-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog

10.9 (Mavericks)

• https://swscan.apple.com/content/catalogs/others/index-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.9seed-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog

10.10 (Yosemite)

• https://swscan.apple.com/content/catalogs/others/index-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.10seed-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.10beta-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog

10.11 (El Capitan)

• https://swscan.apple.com/content/catalogs/others/index-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.11seed-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.11beta-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog

10.12 (Sierra)

• https://swscan.apple.com/content/catalogs/others/index-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.12seed-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.12beta-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog

10.13 (High Sierra)

• https://swscan.apple.com/content/catalogs/others/index-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.13seed-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.13beta-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog

Individual URLs

• https://swscan.apple.com/content/catalogs/others/index-10.13-1.sucatalog
• https://swscan.apple.com/content/catalogs/others/index-10.13seed-1.sucatalog

Hey! Anyone got any catalog links that include bootcamp with this specific ID:
031-3384? It seems impossible to find!

According to Apple's Boot Camp updates catalog, the release you're looking for doesn't exist.

@bananakid
It does exist. Bootcamp 5.1.5621

Also, what do you mean by you "reserve rights changing Apple SU Catalog URL"?

@grandchace bro thinks he is a lawyer and has to reserve the rights to change his own comment lol

It does exist. Bootcamp 5.1.5621

What's the source of this URL?

It does exist. Bootcamp 5.1.5621

What's the source of this URL?

Apple's own website when you click the download button

https://swscan.apple.com/content/catalogs/others/index-16-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz does work for the macOS 26 catalog, but note that https://swscan.apple.com/content/catalogs/others/index-26-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz does as well. I suspect that the 16 version is for backwards-compatibility and it may eventually be dropped