diff --git a/.changes/deb-update-support.md b/.changes/deb-update-support.md
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+++ b/.changes/deb-update-support.md
@@ -0,0 +1,5 @@
+---
+"updater": "minor"
+---
+
+Added support for .deb package updates on Linux systems, including new error types (TempDirNotFound, AuthenticationFailed, DebInstallFailed) and implementation of .deb package installation with privilege escalation handling.
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