diff --git a/TODO b/TODO
index 43a8972b..eb05461e 100644
--- a/TODO
+++ b/TODO
@@ -14,3 +14,19 @@ I. Bugs to fix
      unusual geometry situations.  That these situations would be DRC
      errors does not excuse the infinite loop behavior.  The geometry
      required is unusual enough that this is not a high priority item.
+
+  4. The LEF read/write should operate from the GDS rules and layers, not
+     the magic database layers.  LEF setup should be put in the cifinput
+     and cifoutput sections in the techfile, not in its own section.
+
+  5. Implement a CRC checksum to replace (or complement) timestamps.
+     Cells are marked as invalid only if the checksum fails to match, not
+     if the timestamp is outdated.  This helps with two problems:  (1)
+     PDKs which are reinstalled but not changed, and (2) libraries which
+     are copied from one place to another but not changed.
+
+  6. Implement tile planes that can be defined as either maximum horizontal
+     stripes (default) or maximum vertical stripes.  The latter, if applied
+     to vertically oriented route layers, vastly speeds up searches on
+     those layers.  The code for manipulating tile planes with maximum
+     vertical stripes exists but is used only in by the maze router.
diff --git a/VERSION b/VERSION
index b105b3a9..74d1f38c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.3.4
+8.3.5
diff --git a/calma/CalmaWrite.c b/calma/CalmaWrite.c
index 1d65a5fa..9bc244c6 100644
--- a/calma/CalmaWrite.c
+++ b/calma/CalmaWrite.c
@@ -444,13 +444,15 @@ calmaDumpStructure(def, outf, calmaDefHash, filename)
 	if (edef != NULL)
 	{
 	    bool isAbstract, isReadOnly;
-	    char *chklibname;
+	    char *chklibname, *dotptr;
 
 	    /* Is view abstract? */
 	    DBPropGet(edef, "LEFview", &isAbstract);
 	    chklibname = (char *)DBPropGet(edef, "GDS_FILE", &isReadOnly);
+	    dotptr = strrchr(filename, '.');
+	    if (dotptr) *dotptr = '\0';
 
-	    /* Is the library name the same? */
+	    /* Is the library name the same as the filename (less extension)? */
 	    if (isAbstract && isReadOnly && !strcmp(filename, chklibname))
 	    {
 		/* Same library, so keep the cellname and mark the cell */
@@ -473,6 +475,7 @@ calmaDumpStructure(def, outf, calmaDefHash, filename)
 		    HashSetValue(he, (char *)newnameptr);
 		}
 	    }
+	    if (dotptr) *dotptr = '.';
 	}
 	else
 	{