Added an entry for the HDFGroupGH-4585 fix (HDFGroup#4889)

release_docs/RELEASE.txt

@@ -188,6 +188,63 @@ Bug Fixes since HDF5-1.14.4 release
 ===================================
     Library
     -------
+    - Fixed a memory leak in H5F__accum_write()
+
+      The memory was allocated in H5F__accum_write() and was to be freed in
+      H5F__accum_reset() during the closing process but a failure occurred just
+      before the deallocation, leaving the memory un-freed.  The problem is
+      now fixed.
+
+      Fixes GitHub #4585
+
+    - Fixed an incorrect returned value by H5LTfind_dataset()
+
+      H5LTfind_dataset() returned true for non-existing datasets because it only
+      compared up to the length of the searched string, such as "Day" vs "DayNight".
+      Applied the user's patch to correct this behavior.
+
+      Fixes GitHub #4780
+
+    - Fixed a segfault by H5Gmove2, extending to H5Lcopy and H5Lmove
+
+      A user's application segfaulted when it passed in an invalid location ID
+      to H5Gmove2.  The src and dst location IDs must be either a file or a group
+      ID.  The fix was also applied to H5Lcopy and H5Lmove.  Now, all these
+      three functions will fail if either the src or dst location ID is not a file
+      or a group ID.
+
+      Fixes GitHub #4737
+
+    - Fixed a segfault by H5Lget_info()
+
+      A user's program generated a segfault when the ID passed into H5Lget_info()
+      was a datatype ID.  This was caused by non-VOL functions being used internally
+      where VOL functions should have been.  This correction was extended to many
+      other functions to prevent potential issue in the future.
+
+      Fixes GitHub #4730
+
+    - Fixed a segfault by H5Fget_intent(), extending to several other functions
+
+      A user's program generated a segfault when the ID passed into H5Fget_intent()
+      was not a file ID.  In addition to H5Fget_intent(), a number of APIs also failed
+      to detect an incorrect ID being passed in, which can potentially cause various
+      failures, including segfault.  The affected functions are listed below and now
+      properly detect incorrect ID parameters:
+
+        H5Fget_intent()
+        H5Fget_fileno()
+        H5Fget_freespace()
+        H5Fget_create_plist()
+        H5Fget_access_plist()
+        H5Fget_vfd_handle()
+        H5Dvlen_get_buf_size()
+        H5Fget_mdc_config()
+        H5Fset_mdc_config()
+        H5Freset_mdc_hit_rate_stats()
+
+      Fixes GitHub #4656 and GitHub #4662
+
     - Fixed a bug with large external datasets
 
       When performing a large I/O on an external dataset, the library would only