Official line
CodePlex shutting down; migrate to GitHub.
Microsoft · Developer Tools · Product
CodePlex
Discontinued
2006–2017 · 11 years in market
Launched
Jan 1, 2006
Discontinued
Dec 15, 2017
Cause of death
Lost to a competitor
Evidence
Unsourced
What was it?
Microsoft’s open-source forge. GitHub won; Microsoft later bought GitHub and closed CodePlex.
Why it died
Editorial reading
Git became the culture. A Microsoft-flavored forge could not be the town square.
Founder takeaway
If you cannot beat the forge, buy it. Do not keep a zombie repo host.
Sources
Unsourced — editorial reading
No primary source is attached yet. Treat the interpretation as editorial, not a citation.
What replaced it
Microsoft
GitHub
Microsoft’s second, winning bet.
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