diff --git a/codes/quantum/properties/qecc_finite.yml b/codes/quantum/properties/qecc_finite.yml
index 4f5005ce8..447bc2df7 100644
--- a/codes/quantum/properties/qecc_finite.yml
+++ b/codes/quantum/properties/qecc_finite.yml
@@ -33,12 +33,13 @@ protection: |
   \begin{align}
     \Pi E_i^\dagger E_j \Pi = c_{ij}\, \Pi\qquad\text{for all \(i,j\),}
   \end{align}
-  where the \textit{QEC matrix} elements \(c_{ij}\) are arbitrary complex numbers.
+  where the \textit{QEC matrix} elements \(c_{ij}\) are arbitrary complex numbers.  
   \end{defterm}
   
   The Knill-Laflamme conditions can alternatively be expressed in terms of the \hyperref[topic:complementary-channel]{complementary channel}, or in an information-theoretic way via a data processing inequality \cite{arxiv:quant-ph/9604022,arxiv:quant-ph/9702031}\cite[Eq. (29)]{arxiv:quant-ph/9604034}.
   They motivate higher-rank numerical ranges, which are generalizations of the numerical range of an operator \cite{arxiv:quant-ph/0511101,arXiv:math/0511278}.
   They have been extended to sequences of multiple errors and rounds of correction \cite{arxiv:2405.17567}.
+  The non-correctable contributions to the conditions can be arranged in a signature vector \cite{arxiv:2410.07983}. 
 
   \begin{defterm}{Degeneracy}
   \label{topic:degeneracy}
diff --git a/codes/quantum/qubits/permutation_invariant/icosahedral_permutation_invariant.yml b/codes/quantum/qubits/permutation_invariant/icosahedral_permutation_invariant.yml
index defa703eb..089dc0ee8 100644
--- a/codes/quantum/qubits/permutation_invariant/icosahedral_permutation_invariant.yml
+++ b/codes/quantum/qubits/permutation_invariant/icosahedral_permutation_invariant.yml
@@ -39,6 +39,9 @@ relations:
       detail: 'The \(((7,2,3))\) Pollatsek-Ruskai code admits a transversal representation of the twisted \(1\)-group \(2I\) \cite{arxiv:2402.01638}.'
     - code_id: j_gross
       detail: 'The \(((7,2,3))\) Pollatsek-Ruskai code can be interpreted as a spin-\(7/2\) Clifford code \cite{arxiv:2005.10910}.'
+  cousins:
+    - code_id: steane
+      detail: 'The Pollatsek-Ruskai code can be continuously deformed to the Steane code \cite{arxiv:2410.07983}.'
 
 
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