The links from that post and top comment point out that that initiative was dropped. It got mired down in bikeshedding from hundreds of opinions and SO eventually just said, “Fuck it.”
Thank you for your patience and feedback. The changes proposed here have been delayed indefinitely - we’ll be back later to open some more discussions.
The top comment from your link points out the current license:
TL;DR: Source code on SO is still licensed under CC-BY-SA.
You’re supposed to do that anyway. Code on SO is licensed as CC BY-SA, which requires attribution.
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The links from that post and top comment point out that that initiative was dropped. It got mired down in bikeshedding from hundreds of opinions and SO eventually just said, “Fuck it.”
The MIT announcement thread was edited with the cancellation announcment:
The top comment from your link points out the current license:
And CC BY-SA is the only license listed on the official help page.