--- a/Sphinx/source/faq/features.rst	Tue Jun 18 13:45:39 2024 +0200
+++ b/Sphinx/source/faq/features.rst	Fri Jun 28 11:15:17 2024 +0200
@@ -264,7 +264,7 @@
 file, it pre-computes a JSON summary of its DICOM tags, and caches
 this JSON file as an attachment to the DICOM instance (accessible at
 the ``/instances/{...}/attachments/dicom-as-json/`` URI). This
-attachment is used as a cache to seep up future accesses to
+attachment is used as a cache to speed up future accesses to
 ``/instances/.../tags``, lookups using ``/tools/find`` or C-FIND
 queries.
 
@@ -272,6 +272,10 @@
 subsequently modified, which implies that the cached JSON file does
 not perfectly match the new dictionary.
 
+Starting from 1.9.0, these files are not necessary anymore.  They can
+possibly be removed by the :ref:`Housekeeper plugin <housekeeper-plugin>`
+to reclaim disk space.
+
 .. highlight:: bash
 
 Since Orthanc 1.2.0, you can force the re-generation of the cached