diff --git a/DESCRIPTION b/DESCRIPTION
index 0e5529be33cf35b9dd0963086d9bb2d1d6c5f815..92546488ab822c3d1cf7953e392fd6b14002654b 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,8 @@
 Package: sybil
 Type: Package
 Title: sybil - Efficient Constrained Based Modelling in R
-Version: 1.2.9
-Date: 2014-11-19
+Version: 1.2.10
+Date: 2015-03-30
 Authors@R: c(person("Gabriel", "Gelius-Dietrich", role = c("aut", "cre"), email = "geliudie@uni-duesseldorf.de"),
              person(c("C.", "Jonathan"), "Fritzemeier", role = "ctb"),
              person("Rajen", "Piernikarczyk", role = "ctb"),
diff --git a/R/multiDel.R b/R/multiDel.R
index fdc8f6f146ee9c331aed352cfd23a643b898184e..1f68e6dafc132d5fbdb763ff3cb0aa0f43ce5b45 100644
--- a/R/multiDel.R
+++ b/R/multiDel.R
@@ -85,10 +85,15 @@ multiDel <- function(model, nProc = 2,
 
 
     # load library 'parallel'
-    if(!isTRUE(require("parallel"))) {
-        stop("package parallel not found.")
+    if (!requireNamespace("parallel", quietly = TRUE)) {
+    	stop("package parallel not found.")
     }
 
+#	unwanted conditioning for loading packages...
+#    if(!isTRUE(require("parallel"))) {
+#        stop("package parallel not found.")
+#    }
+
     # number of cores
     ncore <- parallel::detectCores()
     
diff --git a/inst/NEWS.Rd b/inst/NEWS.Rd
index e74e231bdba1a08342ed857047b7a60ba32bca78..3dd8a16a67d7e65c7d17657c9365ef938651caee 100644
--- a/inst/NEWS.Rd
+++ b/inst/NEWS.Rd
@@ -7,9 +7,11 @@
 \newcommand{\CRANpkg}{\href{http://CRAN.R-project.org/package=#1}{\pkg{#1}}}
 
 % ---------------------------------------------------------------------------- %
-\section{Changes in version 1.2.10 2015-03-02}{
+\section{Changes in version 1.2.10 2015-03-30}{
   \itemize{
-    \item \code{findExchangeReact} can now deal with bigger matrices
+    \item \code{findExchangeReact} can now deal with real big matrices (>30.000 columns).
+    \item additional example for readProb and writeProb.
+    \item modified \code{multiDel} to not use \code{require}
   }
 }