Tuesday 8 April 2025

April 2025: 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 2025 May 2025 →

Superseded

Newer updates replace April 2025.

The CVEs it fixes are unknown; no open known issues found in the current public evidence; out-of-band fixes followed on 11 Apr, 16 Apr. See November 2026 Patch Tuesday.

MSRC's April 2025 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: 7

Release calendar · December 2027

Wed 1 Dec

Thu 2 Dec

Fri 3 Dec

Sat 4 Dec

Sun 5 Dec

Mon 6 Dec

Tue 7 Dec

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Tue 14 Dec

Patch Tuesday

Wed 15 Dec

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