Older posts are under the older CC 3.0 license, newer posts under the CC 4.0. https://meta.stackexchange.com/questions/344491/an-update-on-creative-commons-lic

Older posts are under the older CC 3.0 license, newer posts under the CC 4.0. https://meta.stackexchange.com/questions/344491/an-update-on-creative-commons-licensing https://meta.stackexchange.com/questions/344491/an-update-on...