diff --git a/DESCRIPTION b/DESCRIPTION
index cafc108..403e657 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: antaresEditObject
 Type: Package
 Title: Edit an 'Antares' Simulation
-Version: 0.7.1
+Version: 0.8.0.9000
 Authors@R: c(
     person("Tatiana", "Vargas", email = "tatiana.vargas@rte-france.com", role = c("aut", "cre")),
     person("Frederic", "Breant", role = "ctb"),
@@ -53,3 +53,5 @@ Suggests:
     knitr,
     rmarkdown
 VignetteBuilder: knitr
+Remotes: 
+    rte-antares-rpackage/antaresRead
diff --git a/NEWS.md b/NEWS.md
index 08ab744..c073378 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,13 @@
+> Copyright © 2016 RTE Reseau de transport d’electricite
+
+# antaresEditObject 0.8.0.9000
+(cf. Antares v9 changelog)
+
+NEW FEATURES (Antares v9.0) :  
+* `createStudy()` takes into account the new format of Antares studies (e.g. 9.0, 9.15 instead of 900, 915) 
+
+
+
 # antaresEditObject 0.7.1
 
 ### Breaking changes  :  
diff --git a/R/createStudy.R b/R/createStudy.R
index 376e0a8..afc66d3 100644
--- a/R/createStudy.R
+++ b/R/createStudy.R
@@ -7,6 +7,11 @@
 #'  if it doesn't exist, it'll be created.
 #' @param study_name Name of the study.
 #' @param antares_version Antares number version.
+#' 
+#' @section Warning: 
+#' From **Antares version 9.0** onwards, versioning is only done with one number 
+#' for the major version number and a two-digit number for the minor 
+#' version number (e.g. 9.0, 9.12, 10.58, ...).
 #'
 #' @return Result of [antaresRead::setSimulationPath()] or [antaresRead::setSimulationPathAPI()] accordingly.
 #' @export
@@ -20,11 +25,23 @@
 #' @examples
 #' \dontrun{
 #' 
-#' createStudy("path/to/simulation")
+#' # with default values 
+#' createStudy("path/to/simulation", 
+#'   study_name = "my_study", 
+#'   antares_version = "8.2.0")
+#'   
+#' # with Antares study version >= 9 (max 2 digits, ex : "9.15")  
+#' createStudy("path/to/simulation", 
+#'   study_name = "my_study", 
+#'   antares_version = "9.15")
 #' 
 #' }
 createStudy <- function(path, study_name = "my_study", antares_version = "8.2.0") {
   antares_version <- as.numeric_version(antares_version)
+  
+  # check format version >= 9
+  is_new_version <- .is_version_9(version = antares_version)
+  
   if (!dir.exists(path)) {
     dir.create(path = path, recursive = TRUE)
   } else {
@@ -35,6 +52,8 @@ createStudy <- function(path, study_name = "my_study", antares_version = "8.2.0"
       }
     }
   }
+  
+  # choose template
   if (antares_version < as.numeric_version("6.5.0")) {
     file.copy(
       from = list.files(path = system.file("newStudy", package = "antaresEditObject"), full.names = TRUE),
@@ -51,15 +70,31 @@ createStudy <- function(path, study_name = "my_study", antares_version = "8.2.0"
   } else {
     unzip(zipfile = system.file("template-antares/antares-study-v800.zip", package = "antaresEditObject"), exdir = path)
   }
-  antares <- paste(readLines(con = file.path(path, "study.antares")), collapse = "\n")
+  
+  # read ".antares" file to update
+  antares <- paste(readLines(con = file.path(path, "study.antares")), 
+                   collapse = "\n")
+  
+  # specific format from version 9
+  if(!is_new_version)
+    version_to_write <- gsub(pattern = ".", 
+                             replacement = "", 
+                             x = antares_version, 
+                             fixed = TRUE)
+  else
+    version_to_write <- antares_version
+
+  # template for file "study.antares"
   antares <- whisker::whisker.render(
     template = antares,
     data = list(
-      version = gsub(pattern = ".", replacement = "", x = antares_version, fixed = TRUE),
+      version = version_to_write,
       study_name = study_name,
       date_created = floor(as.numeric(Sys.time()))
     )
   )
+  
+  # write meta data
   writeLines(text = antares, con = file.path(path, "study.antares"))
   desktop <- paste(readLines(con = file.path(path, "Desktop.ini")), collapse = "\n")
   desktop <- whisker::whisker.render(
@@ -69,7 +104,11 @@ createStudy <- function(path, study_name = "my_study", antares_version = "8.2.0"
     )
   )
   writeLines(text = desktop, con = file.path(path, "Desktop.ini"))
+  
+  # read study to create meta data object to return then
   opts <- setSimulationPath(path = path)
+  
+  # add specific directory and files according to version of study to create
   if (antares_version >= as.numeric_version("8.1.0")) {
     activateRES(opts = opts)
   }
@@ -168,3 +207,33 @@ deleteStudy <- function(opts = simOptions(), prompt_validation = FALSE, simulati
                      "Study")))
 }
 
+
+#' function that ensures the transition to 9
+#' @description basic tests on the version's writing format
+#' 
+#' @param version `character` (eg, "8.2.0" or "9.0")
+#' @return `logical` if version >=9
+#' @keywords internal
+.is_version_9 <- function(version){
+  # Split major and minor parts
+  antares_version_splitted <- unlist(
+    strsplit(
+      as.character(version), 
+      split = "\\."))
+  major <- antares_version_splitted[1]
+  
+  # check from version 9, minor max two digits 
+  is_new_version <- as.numeric(major)>=9
+  if(is_new_version){
+    minor <- antares_version_splitted[2]
+    if(length(antares_version_splitted)>2)
+      stop("From Antares version 9, put version like this : '9.0' or '9.12' or '10.25'", 
+           call. = FALSE)
+    if (nchar(minor) > 2) 
+      stop("Invalid antares_version format, good format is like '9.99' (two digits on minor)", 
+           call. = FALSE)
+  }
+  
+  return(is_new_version)
+}
+
diff --git a/man/create-study.Rd b/man/create-study.Rd
index a274b96..f2ce352 100644
--- a/man/create-study.Rd
+++ b/man/create-study.Rd
@@ -36,10 +36,25 @@ Result of \code{\link[antaresRead:setSimulationPath]{antaresRead::setSimulationP
 \description{
 Create study on disk or with AntaREST server through the API.
 }
+\section{Warning}{
+
+From \strong{Antares version 9.0} onwards, versioning is only done with one number
+for the major version number and a two-digit number for the minor
+version number (e.g. 9.0, 9.12, 10.58, ...).
+}
+
 \examples{
 \dontrun{
 
-createStudy("path/to/simulation")
+# with default values 
+createStudy("path/to/simulation", 
+  study_name = "my_study", 
+  antares_version = "8.2.0")
+  
+# with Antares study version >= 9 (max 2 digits, ex : "9.15")  
+createStudy("path/to/simulation", 
+  study_name = "my_study", 
+  antares_version = "9.15")
 
 }
 }
diff --git a/man/dot-is_version_9.Rd b/man/dot-is_version_9.Rd
new file mode 100644
index 0000000..deebbb5
--- /dev/null
+++ b/man/dot-is_version_9.Rd
@@ -0,0 +1,18 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/createStudy.R
+\name{.is_version_9}
+\alias{.is_version_9}
+\title{function that ensures the transition to 9}
+\usage{
+.is_version_9(version)
+}
+\arguments{
+\item{version}{\code{character} (eg, "8.2.0" or "9.0")}
+}
+\value{
+\code{logical} if version >=9
+}
+\description{
+basic tests on the version's writing format
+}
+\keyword{internal}
diff --git a/tests/testthat/test-createStudy.R b/tests/testthat/test-createStudy.R
index b2a4d73..e8cf304 100644
--- a/tests/testthat/test-createStudy.R
+++ b/tests/testthat/test-createStudy.R
@@ -2,6 +2,41 @@
 
 # create ----
 
+  ## v9.0----
+test_that("Create a new v9.0 study", {
+  path <- file.path(tempdir(), "tests_createStudy")
+  suppressWarnings(
+    opts <- createStudy(path, antares_version = "9.0")
+  )
+  properties <- antaresRead:::readIniFile(file.path(path, "study.antares"))
+  expect_identical(properties$antares$version, 9)
+  unlink(path, recursive = TRUE)
+})
+
+test_that("Create a new v9.15 (2 digits) study", {
+  path <- file.path(tempdir(), "tests_createStudy")
+  suppressWarnings(
+    opts <- createStudy(path, antares_version = "9.15")
+  )
+  properties <- antaresRead:::readIniFile(file.path(path, "study.antares"))
+  expect_identical(properties$antares$version, 9.15)
+  unlink(path, recursive = TRUE)
+})
+
+test_that("Create a new v9.15.2 (error bad format version) study", {
+  path <- file.path(tempdir(), "tests_createStudy")
+  
+  expect_error(
+    opts <- createStudy(path, antares_version = "9.15.2"), 
+    regexp = 'From Antares version 9, put version like this : \'9.0\' or')
+  
+  expect_error(
+    opts <- createStudy(path, antares_version = "9.153"), 
+    regexp = "Invalid antares_version format, good format is like \'9.99\' \\(two digits on minor\\)" )
+  
+  unlink(path, recursive = TRUE)
+})
+
   ## v8.7.0----
 test_that("Create a new v8.7.0 study", {
   path <- file.path(tempdir(), "tests_createStudy")