Help: Add release note for EXCLUDE_FROM_ALL genex support
diff --git a/Help/release/dev/EXCLUDE_FROM_ALL-genex.rst b/Help/release/dev/EXCLUDE_FROM_ALL-genex.rst
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+++ b/Help/release/dev/EXCLUDE_FROM_ALL-genex.rst
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+EXCLUDE_FROM_ALL-genex
+----------------------
+
+* The :prop_tgt:`EXCLUDE_FROM_ALL` target property gained support for
+  :manual:`generator expressions <cmake-generator-expressions(7)>`.