Windows 10 version 1803

Windows 10 April 2018 Update

Version of Microsoft Windows
OS family	Windows 10 (Windows NT)
Version	1803
Codename	Redstone 4
Preliminary name	Windows 10 Spring Creators Update
Architecture	x86, x64
Latest build
Release date	2018-04-30
Support end	2020-11-10
Replaces
Windows 10 Fall Creators Update
Replaced by
Windows 10 October 2018 Update

Windows 10 April 2018 Update (also known as version 1803 or Redstone 4) is an update for Windows 10. It was released on 2018-04-30.
Build 17133 was meant to be the RTM build of the new update, but was later pulled due to BSOD issues.

Builds

Insider Preview (RS_PRERELEASE)

16251.1000.rs_prerelease.170721-1512

16257.1000.rs_prerelease.170728-1630

16273.1000.rs_prerelease.170819-1230

16353.1000.rs_prerelease.170825-1423

16362.1000.rs_prerelease.170908-1431

17004.1000.rs_prerelease.170922-2229

17017.1000.rs_prerelease.171010-1400

17025.1000.rs_prerelease.171020-1626

17035.1000.rs_prerelease.171103-1616

17040.1000.rs_prerelease.171110-1506

17046.1000.rs_prerelease.171118-1403

17063.1000.rs_prerelease.171213-1610

17074.1000.rs_prerelease.180106-2256

17074.1002.rs_prerelease_flt.180116-1539

17083.1000.rs_prerelease.180119-1645

17093.1000.rs_prerelease.180202-1400

Insider Preview (RS4_RELEASE)

17101.1000.rs4_release.180211-1040

17107.1000.rs4_release.180220-1350

17110.1000.rs4_release.180223-1515

17112.1.rs4_release.180227-1537

17115.1.rs4_release.180302-1642

17120.1.rs4_release.180309-1616

17123.1.rs4_release.180313-1507

17127.1.rs4_release.180318-0047

17128.1.rs4_release.180318-1310

17132.1.rs4_release.180322-1214

17133.1.rs4_release.180323-1312

RTM

17134.1.rs4_release.180410-1804