diff --git a/lib/Kernel.py b/lib/Kernel.py
new file mode 100644
index 0000000..530f1f4
--- /dev/null
+++ b/lib/Kernel.py
@@ -0,0 +1,41 @@
+# Store kernel data from ALA, pacman sync db
+import datetime
+from datetime import datetime
+
+
+class Kernel:
+    def __init__(self, name, headers, version, size, last_modified, file_format):
+        self.name = name
+        self.headers = headers
+        self.version = version
+        self.size = size
+        self.last_modified = last_modified
+        self.file_format = file_format
+
+    def __gt__(self, other):
+        datetime_value_self = (datetime.strptime(self.last_modified, "%d-%b-%Y %H:%M").replace(tzinfo=None).date())
+        datetime_value_other = (datetime.strptime(other.last_modified, "%d-%b-%Y %H:%M").replace(tzinfo=None).date())
+        if datetime_value_other >= datetime_value_self:
+            return datetime_value_other
+
+
+class CommunityKernel:
+    def __init__(self, name, headers, repository, version, build_date, install_size):
+        self.name = name
+        self.headers = headers
+        self.repository = repository
+        self.version = version
+        self.build_date = build_date
+        self.install_size = install_size
+
+    def __gt__(self, other):
+        if other.name > self.name:
+            return other
+
+
+class InstalledKernel:
+    def __init__(self, name, version, date, size):
+        self.name = name
+        self.version = version
+        self.date = date
+        self.size = size
\ No newline at end of file
diff --git a/lib/functions.py b/lib/functions.py
index 2956d21..f17f42a 100644
--- a/lib/functions.py
+++ b/lib/functions.py
@@ -10,6 +10,7 @@
 import gi
 from gi.repository import Gtk
 gi.require_version("Gtk", "3.0")
+from Kernel import Kernel, CommunityKernel, InstalledKernel
 
 BaseDir = os.path.abspath(os.path.join(os.path.dirname(__file__)))
 SudoUsername = os.getlogin()
@@ -133,8 +134,14 @@ def writeCache():
     except Exception as e:
         logger.error("Found error in write_cache() ! Type: %s" % e)
 
-CacheDays = 5
 CachedKernelsList = []
+def refreshCache(self):
+    CachedKernelsList.clear()
+    if os.path.exists(CacheFile):
+        os.remove(CacheFile)
+    get_official_kernels(self)
+
+CacheDays = 5
 def readCache(self):
     try:
         self.timestamp = None
@@ -156,7 +163,7 @@ def readCache(self):
                     delta = datetime.datetime.now() - self.timestamp
                     if delta.days >= CacheDays:
                         logger.info("Cache is older than 5 days, refreshing ..")
-                        refresh_cache(self)
+                        refreshCache(self)
                     else:
                         if delta.days > 0:
                             logger.debug("Cache is %s days old" % delta.days)
@@ -183,3 +190,5 @@ def readCache(self):
                 logger.error("Failed to read cache file")
     except Exception as e:
         logger.error("Exception in read_cache(): %s" % e)
+
+def getOfficialKernels(self):
\ No newline at end of file