diff --git a/RELEASE.TXT b/RELEASE.TXT
index 30cbaeda..74665a19 100644
--- a/RELEASE.TXT
+++ b/RELEASE.TXT
@@ -1,4 +1,18 @@
 Version @PHREEQC_VER@: @PHREEQC_DATE@
+ 	----------------
+	January 23, 2020
+	----------------
+
+    Updated documentation in phreeqc.chm and online 
+https://water.usgs.gov/water-resources/software/PHREEQC/documentation/phreeqc3-html/phreeqc3.htm
+
+	PHREEQC: Added silicate sorption to Hfo_w from Swedlund, P.J. and Webster, J.G., 1999, 
+	Water Research 33, 3413-3422 for Amm.dat, phreeqc.dat, pitzer.dat, and wateq4f.dat.
+	
+	PHREEQC: Fixed memory error in TRANSPORT if number of porosities exceeded the number of cells.
+
+
+Version 3.6.1: January 7, 2020
  	---------------
 	January 2, 2020
 	---------------