diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,23 @@
+
+Version 0.1.3
+-----
+
+* Targeting on a new version of aivika-transformers.
+
+
+Version 0.1.2
+-----
+
+* Fixed a space leak in the Ref module.
+
+
+Version 0.1.1
+-----
+
+* Updated the random number generator.
+
+
+Version 0.1
+-----
+
+* Initial version.
diff --git a/Simulation/Aivika/Branch/Br.hs b/Simulation/Aivika/Branch/Br.hs
--- a/Simulation/Aivika/Branch/Br.hs
+++ b/Simulation/Aivika/Branch/Br.hs
@@ -7,7 +7,7 @@
 -- Stability  : experimental
 -- Tested with: GHC 7.10.3
 --
--- This module defines 'BrIO' as an instance of the 'MonadDES' type class.
+-- This module defines 'BrIO' as an instance of the 'MonadDES' and 'EventIOQueueing' type classes.
 --
 module Simulation.Aivika.Branch.Br
        (BrIO,
@@ -31,3 +31,9 @@
 instance MonadDES BrIO
 
 instance MonadComp BrIO
+
+-- | An implementation of the 'EventIOQueueing' type class.
+instance EventIOQueueing BrIO where
+
+  enqueueEventIO = enqueueEvent
+  
diff --git a/aivika-branches.cabal b/aivika-branches.cabal
--- a/aivika-branches.cabal
+++ b/aivika-branches.cabal
@@ -1,8 +1,8 @@
 name:            aivika-branches
-version:         0.1.2
-synopsis:        Branching discrete event simulation library
+version:         0.1.3
+synopsis:        Nested discrete event simulation module for the Aivika library
 description:
-    This package extends the Aivika [1] library with facilities for creating branches to run
+    This package extends the aivika-transformers [1] library with facilities for creating branches to run
     nested simulations within simulation. For example, it can be useful for financial modeling.
     .
     \[1] <http://hackage.haskell.org/package/aivika-transformers>
@@ -21,6 +21,7 @@
 extra-source-files:  tests/MachRep1.hs
                      tests/Furnace.hs
                      tests/InspectionAdjustmentStations.hs
+                     CHANGELOG.md
 
 library
 
@@ -38,8 +39,8 @@
                      mtl >= 2.1.1,
                      containers >= 0.4.0.0,
                      random >= 1.0.0.3,
-                     aivika >= 4.3.2,
-                     aivika-transformers >= 4.3.2
+                     aivika >= 4.5,
+                     aivika-transformers >= 4.5
 
     extensions:      TypeFamilies,
                      MultiParamTypeClasses,