Tuesday 14 April 2026

April 2026: is it safe to deploy?

What Microsoft fixed, how urgent it is, and whether anything broke, per Windows version, from Microsoft's release tables, release health, MSRC, CISA, and what the community reports.

← Mar 2026 May 2026 →

Superseded

Newer updates replace April 2026.

The CVEs it fixes are unknown; no open known issues found in the current public evidence; out-of-band fixes followed on 19 Apr. See November 2026 Patch Tuesday.

MSRC's April 2026 security update document isn't collected.

ChangeIntel's reading of public signals, not advice; check Microsoft's guidance and test before you deploy. Terms

Microsoft CVEs: Unknown
Exploited fixed: Unknown
In CISA KEV: Unknown
Open known issues: 0
Out-of-band: 4

Release calendar · October 2030

Tue 1 Oct

Wed 2 Oct

Thu 3 Oct

Fri 4 Oct

Sat 5 Oct

Sun 6 Oct

Mon 7 Oct

Tue 8 Oct

Patch Tuesday

Wed 9 Oct

Thu 10 Oct

Fri 11 Oct

Sat 12 Oct

Sun 13 Oct

Mon 14 Oct

Tue 15 Oct

Wed 16 Oct

Thu 17 Oct

Fri 18 Oct

Sat 19 Oct

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Mon 21 Oct

Tue 22 Oct

Wed 23 Oct

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Sat 26 Oct

Sun 27 Oct

Mon 28 Oct

Tue 29 Oct

Wed 30 Oct

Thu 31 Oct

Patch Tuesday and security (B) releasesPreview (D) releasesOut-of-band releases.NET Framework servicing packagesEdge, Office, Teams, Defender and server releasesAll product versions