Windows 100th Anniversary

Released in 2085

Support ends in 2101

Centurithum (1985)

Half-Centurithum (2035)

Pre-Delt (2073)

Delt (2075)

Decadithum (2075)

Pre-Alpha 1 (2076)

Pre-Alpha 2 (2077)

Pre-Alpha 3 (2078)

Alpha 1 (2079)

Alpha 2 (2080)

Half-decadithum (2080)

Final-Alpha (2081)

Pre-Beta (1982)

Beta 1 (2083)

Beta 2 (2084)

Final-Beta (2085)

Release Candidate (2085)

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Related versions:

Windows 10th Anniversary

Windows 30th Anniversary

Windows 50th Anniversary

Windows 300th Anniversary

Windows 500th Anniversary

Windows 1000th Anniversary

Windows 100000th Anniversary

Windows 1000000th Anniversary

Windows 2E 10th Anniversary

ETC...