diff --git a/DESCRIPTION b/DESCRIPTION
index d2c5fa08245758999f5f7572f1140e523ad7e4f0..729f9b3f58d663fe98eb264ee99fc8ef4e9348d3 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: airGR
 Type: Package
 Title: Suite of GR Hydrological Models for Precipitation-Runoff Modelling
-Version: 1.3.2.7
+Version: 1.3.2.8
 Date: 2019-05-23
 Authors@R: c(
   person("Laurent", "Coron", role = c("aut", "trl"), comment = c(ORCID = "0000-0002-1503-6204")),
diff --git a/NEWS.rmd b/NEWS.rmd
index 2789188e40f3a8dc60e509414f1493ed7f4b3cdf..d80af8b615a43d28e55895457a870ab614a3d1d0 100644
--- a/NEWS.rmd
+++ b/NEWS.rmd
@@ -14,7 +14,7 @@ output:
 
 
 
-### 1.3.2.7 Release Notes (2019-05-22)
+### 1.3.2.8 Release Notes (2019-05-23)
 
 
 #### New features
@@ -23,12 +23,17 @@ output:
 
 - Added <code>RunModel_CemaNeigeGR4H()</code> function to run the hourly model GR4H with the CemaNeige module.
 
-- Added <code>PE_Oudin()</code> function to compute Oudin's potential evapotranspiration for hourly or daily tim steps.
+- Added <code>PE_Oudin()</code> function to compute Oudin's potential evapotranspiration for hourly or daily time steps.
+
+
+#### Deprecated and defunct
+
+- The <code>PEdaily_Oudin()</code> function is deprecated and his use has been replaced by the use of <code>PE_Oudin()</code>.
 
 
 #### Major user-visible changes
 
-- <code>plot.OutputsModel()</code> can now draw PET or error time series if the <code>which</code> argument is set to <code>"all"</code> or <code>"PotEvap"</code> or <code>"Error"</code>.
+- <code>plot.OutputsModel()</code> can now draw PE or error time series if the <code>which</code> argument is set to <code>"all"</code> or <code>"PotEvap"</code> or <code>"Error"</code>.
 
 - <code>plot.OutputsModel()</code> now allows new values for the which argument: <code>"all"</code> corresponds to all graphs, <code>"synth"</code> corresponds to the main graphs (default value; corresponding to <code>"all"</code> in the previous versions of the package) (i.e. <code>c("Precip", "Temp", "SnowPack", "Flows", "Regime", "CumFreq", "CorQQ")</code>), <code>"ts"</code> corresponds to the time series graphs (i.e. <code>c("Precip", "PotEvap", "Temp", "SnowPack", "Flows")</code>) and "perf" corresponds to the performance graphs (i.e. <code>c("Error", "Regime", "CumFreq", "CorQQ")</code>).
 
diff --git a/R/PEdaily_Oudin.R b/R/PEdaily_Oudin.R
index 4883dd34d7c2c5fe821826810c7fcf9cf92481ed..b71ac99926c6d2725c2ef712575d2cee14a69cb9 100644
--- a/R/PEdaily_Oudin.R
+++ b/R/PEdaily_Oudin.R
@@ -1,5 +1,12 @@
 PEdaily_Oudin <- function(JD, Temp, LatRad, Lat, LatUnit = c("rad", "deg")) {
   
+  ## ---------- deprecated function
+  
+  .Deprecated(new = "PEdaily_Oudin", package = NULL,
+              
+              msg = "deprecated function\nplease, use PE_Oudin() instead",
+              
+              old = as.character(sys.call(sys.parent()))[1L])
   
   ## ---------- check arguments