diff --git a/.github/next_release.md b/.github/next_release.md
index b91f05aca1..93b7802261 100644
--- a/.github/next_release.md
+++ b/.github/next_release.md
@@ -5,7 +5,7 @@ We are now using GitHub to develop the GUDHI library, do not hesitate to [fork t
 Below is a list of changes made since GUDHI 3.9.0:
 
 - [Persistence matrix](https://gudhi.inria.fr/doc/latest/group__persistence__matrix.html)
-     > Matrix API is in a bêta version and we reserve the right to modify it in the near future.
+     > Matrix API is in a beta version and may change in incompatible ways in the near future.
      - Matrix structure for filtered complexes with multiple functionnalities related to persistence homology, such as
      representative cycles computation or vineyards. 
 
diff --git a/src/Persistence_matrix/doc/Intro_persistence_matrix.h b/src/Persistence_matrix/doc/Intro_persistence_matrix.h
index 548d52adc7..ce9c2248ee 100644
--- a/src/Persistence_matrix/doc/Intro_persistence_matrix.h
+++ b/src/Persistence_matrix/doc/Intro_persistence_matrix.h
@@ -36,7 +36,7 @@ namespace persistence_matrix {
  * @li swapping of two consecutive faces in a filtration (cf. vineyards @cite vineyards) while maintaining a valid
  * reduced boundary matrix or compatible chain complex base and a valid barcode with respect to the new filtration,
  * 
- * \note Matrix API is in a bêta version and we reserve the right to modify it in the near future.
+ * \note Matrix API is in a beta version and may change in incompatible ways in the near future.
  *
  * \subsection matrixexamples Examples
  * 
diff --git a/src/common/doc/main_page.md b/src/common/doc/main_page.md
index b6157a1b4f..fd9ea91dc8 100644
--- a/src/common/doc/main_page.md
+++ b/src/common/doc/main_page.md
@@ -394,7 +394,7 @@
     such as representative cycles computation or vineyards.
     <dl class="section note">
       <dt>Note</dt>
-      <dd>Matrix API is in a bêta version and we reserve the right to modify it in the near future.</dd>
+      <dd>Matrix API is in a beta version and may change in incompatible ways in the near future.</dd>
     </dl>
 
     </td>