Windows 10 version history
Rings
Windows 10 Insider Preview builds are delivered to Insiders in three different rings. Insiders in the fast ring receive updates prior to those in the slow ring, but might experience more bugs and other issues.

Windows 10 version history

Section Title: Rings
Table Section Text: Windows 10 Insider Preview builds are delivered to Insiders in three different rings. Insiders in the fast ring receive updates prior to those in the slow ring, but might experience more bugs and other issues.

Version	Codename	Marketing name	Release date	Support until	Latest build

HomePro	EnterpriseEducation	Enterprise LTSC	Mobile	PC	Mobile

1507	Threshold 1	N/A	July 29, 2015	May 9, 2017	May 9, 2017	October 14, 2025	N/A	10240	N/A

1511	Threshold 2	November Update	November 10, 2015	October 10, 2017	October 10, 2017	N/A	January 9, 2018	10586	10586

1607	Redstone 1	Anniversary Update	August 2, 2016	April 10, 2018	April 9, 2019	October 13, 2026	October 9, 2018	14393	14393

1703	Redstone 2	Creators Update	April 5, 2017	October 9, 2018	October 8, 2019	N/A	July 11, 2019	15063	15063

1709	Redstone 3	Fall Creators Update	October 17, 2017	April 9, 2019	April 14, 2020	December 10, 2019	16299	15254

1803	Redstone 4	April 2018 Update	April 30, 2018	November 12, 2019	November 10, 2020	17134

1809	Redstone 5	October 2018 Update	November 13, 2018	May 12, 2020	May 11, 2021	January 9, 2029	N/A	17763	N/A

1903	19H1	May 2019 Update	TBA	18 months after release	18 months after release	TBA	18362

19H2	30 months after release

20H1	18885

Legend:Old versionOlder version, still supportedLatest versionLatest preview version

Sentence(s)

The Windows 10 May 2019 Update (also known as version 1903 and codenamed "19H1") is the seventh update to Windows 10 and the first to use a descriptive codename (including the year) instead of the "Redstone" or "Threshold" codename.

final_sentence: The Windows 10 May 2019 Update (also known as version 1903 and codenamed "19H1") is the seventh update to Windows 10 and the first to use a descriptive codename (including the year) instead of the "Redstone" or "Threshold" codename.