diff --git a/ModelFiles/mat/yeastGEM.mat b/ModelFiles/mat/yeastGEM.mat
index 87bc71ee..413fa60f 100644
Binary files a/ModelFiles/mat/yeastGEM.mat and b/ModelFiles/mat/yeastGEM.mat differ
diff --git a/ModelFiles/xlsx/yeastGEM.xlsx b/ModelFiles/xlsx/yeastGEM.xlsx
index 7c9de54d..cd6f95f2 100644
Binary files a/ModelFiles/xlsx/yeastGEM.xlsx and b/ModelFiles/xlsx/yeastGEM.xlsx differ
diff --git a/ModelFiles/xml/yeastGEM.xml b/ModelFiles/xml/yeastGEM.xml
index 304e0d3e..f1b25781 100644
--- a/ModelFiles/xml/yeastGEM.xml
+++ b/ModelFiles/xml/yeastGEM.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <sbml xmlns="http://www.sbml.org/sbml/level3/version1/core" xmlns:fbc="http://www.sbml.org/sbml/level3/version1/fbc/version2" xmlns:groups="http://www.sbml.org/sbml/level3/version1/groups/version1" level="3" version="1" fbc:required="false" groups:required="false">
-  <model metaid="yeastGEM.xml" id="M_yeastGEM_v8__46__4__46__1" name="The Consensus Genome-Scale Metabolic Model of Yeast" fbc:strict="true">
+  <model metaid="yeastGEM.xml" id="M_yeastGEM_v8__46__4__46__2" name="The Consensus Genome-Scale Metabolic Model of Yeast" fbc:strict="true">
     <listOfUnitDefinitions>
       <unitDefinition id="mmol_per_gDW_per_hr">
         <listOfUnits>
diff --git a/history.md b/history.md
index bfadb20a..234066d6 100644
--- a/history.md
+++ b/history.md
@@ -1,5 +1,13 @@
 # History
 
+### yeast 8.4.2:
+* Features:
+  * `saveYeastModel.m` now checks if the model can grow and, based on the `allowNoGrowth` flag, returns either warnings or errors if not (PR #244).
+  * Added several fatty acid ester producing reactions to the model, for improved simulation of alcoholic fermentation conditions (PRs #190 and #248).
+* Fixes:
+  * Closes #242: Fixed a bug that prevented the model from growing (PR #243).
+  * Corrected directionality of 23 reactions and removed a generic reaction (PR #228).
+
 ### yeast 8.4.1:
 * Features:
   * Switched to `pip-tools` for managing python dependencies, distinguishing between user requirements `/requirements/requirements.txt` and developer requirements `/requirements/dev-requirements.txt` (PR #235).
diff --git a/version.txt b/version.txt
index f4131375..7857a947 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-8.4.1
\ No newline at end of file
+8.4.2
\ No newline at end of file