diff --git a/TAGS b/TAGS
index ca0d8797ba277ef55882567f02d17e0ca23625fa..f7e5ade1ab315ebd00cacd12c5f755e000615dc4 100644
--- a/TAGS
+++ b/TAGS
@@ -22,3 +22,11 @@ v 13.47:
 - Elasticity (both static and dynamic) has been put back from Felisce.
 - KSP solving is also handled through Petsc.
 
+
+v 13.49
+
+- A nasty and stupid bug has been solved in Hyperelasticity: a quantity wasn't correctly initialized, leading potentially to undefined behaviour.
+- Intrusive smart pointers have been replaced by std::shared_ptr. Initially it was done in the search of the bug mentioned above, but it is in fact wiser: Yuni library pretends the virtual
+part is required, and it therefore wasn't so wise to deactivate it. But keeping it would mean paying the virtual cost anywhere... so shared_ptr at the moment; we'll see to replace them if the cost of memory is too huge. But doing it now was premature optimization.
+- Petsc wrapper: now there are two classes that wrap over Petsc's Vec and Mat. The interface is hence slightly easier, and we limit greatly potential memory leaks: Petsc functions MatDestroy and VecDestroy are now called automatically in the destructor.
+- Yuni library path has been modified in XCode project: Yuni has changed its SCM from SVN to git, and I have checked out the latest version from git. As a conequence, there is no longer a 'trunk' in the path to access the library.