diff --git a/NEWS.md b/NEWS.md
index 9b2f04717..f26c91b47 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,13 +1,15 @@
+# CHANGES IN GGIR VERSION 2.10-5
+
+- Part 2: Move cosinor analysis code to its own function in order to ease re-using it in both part 2 and part 6.
+
+- Part2: Expand cosinor analysis with R2
+
 # CHANGES IN GGIR VERSION 2.10-4
 
 - Part 4: Now better able to handle nights without sustained inactivity bouts (rest) #911
 
 - Part 5: Function g.fragmentation code cleaned up, TP formulas revised following feedback Ian Danilevicz, and code now also produces sleep fragmentation #817
 
-- Part 2: Move cosinor analysis code to its own function in order to ease re-using it in both part 2 and part 6.
-
-- Part2: Expand cosinor analysis with R2
-
 - Part 1: Fixed issue #914 relating to specifying timezone for processing ad-hoc csv format raw data.
 
 - Part 1: Improved recognition of ActiGraph csv that occassionally confused for Axivity csv #918
diff --git a/man/GGIR.Rd b/man/GGIR.Rd
index 670d23aa1..d3278919a 100755
--- a/man/GGIR.Rd
+++ b/man/GGIR.Rd
@@ -1249,7 +1249,6 @@ GGIR(mode = 1:5,
         over which L5M5 needs to be calculated. Now this is done with argument qwindow.}
 
       \item{cosinor}{
-        Argument depricated after version 1.5-24.
         Boolean (default = FALSE). Whether to apply the cosinor analysis from the ActCR package.}
 
     }
diff --git a/tests/testthat/test_cosinor.R b/tests/testthat/test_cosinor.R
index a4fce97d0..11537498d 100644
--- a/tests/testthat/test_cosinor.R
+++ b/tests/testthat/test_cosinor.R
@@ -48,6 +48,7 @@ test_that("cosinorAnalyses provides expected output", {
   expect_equal(coef60$coefext$params$UpMesor, 19.52358, tolerance = 0.01)
   expect_equal(coef60$coefext$params$DownMesor, 16.47642, tolerance  = 0.01)
   expect_equal(coef60$coefext$params$MESOR, 3.622534, tolerance  = 0.01)
+  expect_equal(coef60$coefext$params$R2, 0.8976208, tolerance  = 0.01)
   
   # IV IS
   expect_equal(coef60$IVIS$InterdailyStability, 0.9945789, tolerance  = 0.01)