diff --git a/NEWS b/NEWS
index b75e0ce..ea9b9d7 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,8 @@
 1.4.26:
+ * Ported all database code to support SQLite in addition to existing the
+   PostgreSQL support. This is a necessary first step for Luminotes Desktop.
+ * Updated all unit tests to test against an in-memory SQLite database. This
+   increases unit test code coverage to include Luminotes SQL code.
  * Fixed a rare bug in which undeleting a note via "undo" sometimes does not
    show the undeleted note even if the undelete is successful.
 
diff --git a/controller/Database.py b/controller/Database.py
index 28831db..8262d3a 100644
--- a/controller/Database.py
+++ b/controller/Database.py
@@ -328,6 +328,12 @@ class Database( object ):
     cache_key = sha.new( sql_command ).hexdigest()
     cache.delete( cache_key )
 
+  def uncache( self, obj ):
+    cache = self.__get_cache_connection()
+    if not cache: return
+
+    cache.delete( obj.cache_key )
+
   @staticmethod
   def generate_id():
     int_id = random.getrandbits( Database.ID_BITS )
diff --git a/controller/Files.py b/controller/Files.py
index 19f104b..835686e 100644
--- a/controller/Files.py
+++ b/controller/Files.py
@@ -732,6 +732,7 @@ class Files( object ):
 
     self.__database.execute( db_file.sql_delete(), commit = False )
     user = self.__users.update_storage( user_id, commit = False )
+    self.__database.uncache( db_file )
     self.__database.commit()
     user.group_storage_bytes = self.__users.calculate_group_storage( user )
 
@@ -919,6 +920,7 @@ class Files( object ):
     # filesystem
     for ( file_id, db_file ) in files_to_delete.items():
       self.__database.execute( db_file.sql_delete(), commit = False )
+      self.__database.uncache( db_file )
       Upload_file.delete_file( file_id )
 
     self.__database.commit()