diff --git a/newsfragments/LFS-01-005.security b/newsfragments/LFS-01-005.security
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+The storage server implementation now respects the ``reserved_space`` configuration value when writing lease information.
+Previously, new leases could be created and written to disk even when the storage server had less remaining space than the configured reserve space value.
+Now this operation will fail with an exception and the lease will not be created.