diff --git a/Manifest.toml b/Manifest.toml
index 2df7ec7..dcef4a6 100644
--- a/Manifest.toml
+++ b/Manifest.toml
@@ -1,90 +1,5 @@
 # This file is machine-generated - editing it directly is not advised
 
-[[Base64]]
-uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
-
-[[BinaryProvider]]
-deps = ["Compat", "CredentialsHandler", "Libdl", "Pkg", "SHA", "TOML", "Test"]
-uuid = "b99e7846-7c00-51b0-8f62-c81ae34c0232"
-
-[[ColorTypes]]
-deps = ["FixedPointNumbers", "Random", "Test"]
-git-tree-sha1 = "f73b0e10f2a5756de7019818a41654686da06b09"
-uuid = "3da002f7-5984-5a60-b8a6-cbb66c0b333f"
-version = "0.7.5"
-
-[[Colors]]
-deps = ["ColorTypes", "FixedPointNumbers", "InteractiveUtils", "Printf", "Reexport", "Test"]
-git-tree-sha1 = "9f0a0210450acb91c730b730a994f8eef1d3d543"
-uuid = "5ae59095-9a9b-59fe-a467-6f913c188581"
-version = "0.9.5"
-
-[[Compat]]
-deps = ["Base64", "Dates", "DelimitedFiles", "Distributed", "InteractiveUtils", "LibGit2", "Libdl", "LinearAlgebra", "Markdown", "Mmap", "Pkg", "Printf", "REPL", "Random", "Serialization", "SharedArrays", "Sockets", "SparseArrays", "Statistics", "Test", "UUIDs", "Unicode"]
-git-tree-sha1 = "49269e311ffe11ac5b334681d212329002a9832a"
-uuid = "34da2185-b29b-5c13-b0c7-acf172513d20"
-version = "1.5.1"
-
-[[Contour]]
-deps = ["LinearAlgebra", "StaticArrays", "Test"]
-git-tree-sha1 = "b974e164358fea753ef853ce7bad97afec15bb80"
-uuid = "d38c429a-6771-53c6-b99e-75d170b6e991"
-version = "0.5.1"
-
-[[CredentialsHandler]]
-deps = ["Base64", "HTTP", "TOML"]
-uuid = "864e158e-919d-11e8-198e-cfe890ec4681"
-
-[[DataStructures]]
-deps = ["InteractiveUtils", "OrderedCollections", "Random", "Serialization", "Test"]
-git-tree-sha1 = "ca971f03e146cf144a9e2f2ce59674f5bf0e8038"
-uuid = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
-version = "0.15.0"
-
-[[Dates]]
-deps = ["Printf"]
-uuid = "ade2ca70-3891-5945-98fb-dc099432e06a"
-
-[[DelimitedFiles]]
-deps = ["Mmap"]
-uuid = "8bb1440f-4735-579b-a4ab-409b98df4dab"
-
-[[Distributed]]
-deps = ["LinearAlgebra", "Random", "Serialization", "Sockets"]
-uuid = "8ba89e20-285c-5b6f-9357-94700520ee1b"
-
-[[FixedPointNumbers]]
-deps = ["Test"]
-git-tree-sha1 = "b8045033701c3b10bf2324d7203404be7aef88ba"
-uuid = "53c48c17-4a7d-5ca2-90c5-79b7896eea93"
-version = "0.5.3"
-
-[[GR]]
-deps = ["Base64", "DelimitedFiles", "LinearAlgebra", "Pkg", "Printf", "Random", "Serialization", "Sockets", "Test"]
-git-tree-sha1 = "3c62c19ddf86ff016829fdac1663cd3c75558c34"
-uuid = "28b8d3ca-fb5f-59d9-8090-bfdbd6d07a71"
-version = "0.37.0"
-
-[[HTTP]]
-deps = ["Base64", "Dates", "Distributed", "IniFile", "MbedTLS", "Sockets", "Test"]
-uuid = "cd3eb016-35fb-5094-929b-558a96fad6f3"
-
-[[IniFile]]
-uuid = "83e8ac13-25f8-5344-8a64-a9f2b223428f"
-
-[[InteractiveUtils]]
-deps = ["LinearAlgebra", "Markdown"]
-uuid = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
-
-[[JSON]]
-deps = ["Dates", "Distributed", "Mmap", "Sockets", "Test", "Unicode"]
-git-tree-sha1 = "1f7a25b53ec67f5e9422f1f551ee216503f4a0fa"
-uuid = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
-version = "0.20.0"
-
-[[LibGit2]]
-uuid = "76f85450-5226-5b5a-8eaa-529ad045b433"
-
 [[Libdl]]
 uuid = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 
@@ -92,146 +7,17 @@ uuid = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 deps = ["Libdl"]
 uuid = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 
-[[Logging]]
-uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"
-
-[[Markdown]]
-deps = ["Base64"]
-uuid = "d6f4376e-aef5-505a-96c1-9c027394607a"
-
-[[MbedTLS]]
-deps = ["BinaryProvider", "Dates", "Libdl", "Pkg", "Random", "Sockets"]
-uuid = "739be429-bea8-5141-9913-cc70e7f3736d"
-
-[[Measures]]
-deps = ["Test"]
-git-tree-sha1 = "ddfd6d13e330beacdde2c80de27c1c671945e7d9"
-uuid = "442fdcdd-2543-5da2-b0f3-8c86c306513e"
-version = "0.3.0"
-
-[[Missings]]
-deps = ["Dates", "InteractiveUtils", "SparseArrays", "Test"]
-git-tree-sha1 = "d1d2585677f2bd93a97cfeb8faa7a0de0f982042"
-uuid = "e1d29d7a-bbdc-5cf2-9ac0-f12de2c33e28"
-version = "0.4.0"
-
-[[Mmap]]
-uuid = "a63ad114-7e13-5084-954f-fe012c677804"
-
-[[NaNMath]]
-deps = ["Compat"]
-git-tree-sha1 = "ce3b85e484a5d4c71dd5316215069311135fa9f2"
-uuid = "77ba4419-2d1f-58cd-9bb1-8ffee604a2e3"
-version = "0.3.2"
-
-[[OrderedCollections]]
-deps = ["Random", "Serialization", "Test"]
-git-tree-sha1 = "85619a3f3e17bb4761fe1b1fd47f0e979f964d5b"
-uuid = "bac558e1-5e72-5ebc-8fee-abe8a469f55d"
-version = "1.0.2"
-
-[[Pkg]]
-deps = ["BinaryProvider", "CredentialsHandler", "Dates", "LibGit2", "Markdown", "Printf", "REPL", "Random", "SHA", "TOML", "UUIDs"]
-uuid = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
-
-[[PlotThemes]]
-deps = ["PlotUtils", "Requires", "Test"]
-git-tree-sha1 = "f3afd2d58e1f6ac9be2cea46e4a9083ccc1d990b"
-uuid = "ccf2f8ad-2431-5c83-bf29-c5338b663b6a"
-version = "0.3.0"
-
-[[PlotUtils]]
-deps = ["Colors", "Dates", "Printf", "Random", "Reexport", "Test"]
-git-tree-sha1 = "fd28f30a294a38ec847de95d8ac7ac916ccd7c06"
-uuid = "995b91a9-d308-5afd-9ec6-746e21dbc043"
-version = "0.5.5"
-
-[[Printf]]
-deps = ["Unicode"]
-uuid = "de0858da-6303-5e67-8744-51eddeeeb8d7"
-
-[[REPL]]
-deps = ["InteractiveUtils", "Markdown", "Sockets"]
-uuid = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"
-
 [[Random]]
 deps = ["Serialization"]
 uuid = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 
-[[RecipesBase]]
-deps = ["Random", "Test"]
-git-tree-sha1 = "0b3cb370ee4dc00f47f1193101600949f3dcf884"
-uuid = "3cdcf5f2-1ef4-517c-9805-6587b60abb01"
-version = "0.6.0"
-
-[[Reexport]]
-deps = ["Pkg"]
-git-tree-sha1 = "7b1d07f411bc8ddb7977ec7f377b97b158514fe0"
-uuid = "189a3867-3050-52da-a836-e630ba90ab69"
-version = "0.2.0"
-
-[[Requires]]
-deps = ["Test"]
-git-tree-sha1 = "f6fbf4ba64d295e146e49e021207993b6b48c7d1"
-uuid = "ae029012-a4dd-5104-9daa-d747884805df"
-version = "0.5.2"
-
-[[SHA]]
-uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"
-
 [[Serialization]]
 uuid = "9e88b42a-f829-5b0c-bbe9-9e923198166b"
 
-[[SharedArrays]]
-deps = ["Distributed", "Mmap", "Random", "Serialization"]
-uuid = "1a1011a3-84de-559e-8e89-a11a2f7dc383"
-
-[[Showoff]]
-deps = ["Compat"]
-git-tree-sha1 = "276b24f3ace98bec911be7ff2928d497dc759085"
-uuid = "992d4aef-0814-514b-bc4d-f2e9a6c4116f"
-version = "0.2.1"
-
-[[Sockets]]
-uuid = "6462fe0b-24de-5631-8697-dd941f90decc"
-
-[[SortingAlgorithms]]
-deps = ["DataStructures", "Random", "Test"]
-git-tree-sha1 = "03f5898c9959f8115e30bc7226ada7d0df554ddd"
-uuid = "a2af1166-a08f-5f64-846c-94a0d3cef48c"
-version = "0.3.1"
-
 [[SparseArrays]]
 deps = ["LinearAlgebra", "Random"]
 uuid = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
-[[StaticArrays]]
-deps = ["InteractiveUtils", "LinearAlgebra", "Random", "Statistics", "Test"]
-git-tree-sha1 = "1eb114d6e23a817cd3e99abc3226190876d7c898"
-uuid = "90137ffa-7385-5640-81b9-e52037218182"
-version = "0.10.2"
-
 [[Statistics]]
 deps = ["LinearAlgebra", "SparseArrays"]
 uuid = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
-
-[[StatsBase]]
-deps = ["DataStructures", "DelimitedFiles", "LinearAlgebra", "Missings", "Printf", "Random", "SortingAlgorithms", "SparseArrays", "Statistics", "Test"]
-git-tree-sha1 = "7b596062316c7d846b67bf625d5963a832528598"
-uuid = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
-version = "0.27.0"
-
-[[TOML]]
-deps = ["Dates"]
-uuid = "9d418dce-91a8-11e8-0173-7b01a971d501"
-
-[[Test]]
-deps = ["Distributed", "InteractiveUtils", "Logging", "Random"]
-uuid = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-
-[[UUIDs]]
-deps = ["Random"]
-uuid = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"
-
-[[Unicode]]
-uuid = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"
diff --git a/Project.toml b/Project.toml
index 36c1825..e78b1ba 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,11 +1,11 @@
 name = "PosDefManifold"
 uuid = "f45a3650-5c51-11e9-1e9a-133aa5e309cf"
 authors = ["congedom "]
-version = "0.4.0"
-
-[compat]
-julia = "1.3"
+version = "0.4.1"
 
 [deps]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
+
+[compat]
+julia = "1.1, 1.2, 1.3"
diff --git a/docs/Manifest.toml b/docs/Manifest.toml
index b29260b..0e4b168 100644
--- a/docs/Manifest.toml
+++ b/docs/Manifest.toml
@@ -3,65 +3,42 @@
 [[Base64]]
 uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
 
-[[BinaryProvider]]
-deps = ["Compat", "CredentialsHandler", "Libdl", "Pkg", "SHA", "TOML", "Test"]
-uuid = "b99e7846-7c00-51b0-8f62-c81ae34c0232"
-
-[[Compat]]
-deps = ["Base64", "Dates", "DelimitedFiles", "Distributed", "InteractiveUtils", "LibGit2", "Libdl", "LinearAlgebra", "Markdown", "Mmap", "Pkg", "Printf", "REPL", "Random", "Serialization", "SharedArrays", "Sockets", "SparseArrays", "Statistics", "Test", "UUIDs", "Unicode"]
-git-tree-sha1 = "49269e311ffe11ac5b334681d212329002a9832a"
-uuid = "34da2185-b29b-5c13-b0c7-acf172513d20"
-version = "1.5.1"
-
-[[CredentialsHandler]]
-deps = ["Base64", "HTTP", "TOML"]
-uuid = "864e158e-919d-11e8-198e-cfe890ec4681"
-
 [[Dates]]
 deps = ["Printf"]
 uuid = "ade2ca70-3891-5945-98fb-dc099432e06a"
 
-[[DelimitedFiles]]
-deps = ["Mmap"]
-uuid = "8bb1440f-4735-579b-a4ab-409b98df4dab"
-
 [[Distributed]]
-deps = ["LinearAlgebra", "Random", "Serialization", "Sockets"]
+deps = ["Random", "Serialization", "Sockets"]
 uuid = "8ba89e20-285c-5b6f-9357-94700520ee1b"
 
 [[DocStringExtensions]]
 deps = ["LibGit2", "Markdown", "Pkg", "Test"]
-git-tree-sha1 = "1df01539a1c952cef21f2d2d1c092c2bcf0177d7"
+git-tree-sha1 = "88bb0edb352b16608036faadcc071adda068582a"
 uuid = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
-version = "0.6.0"
+version = "0.8.1"
 
 [[Documenter]]
-deps = ["Base64", "DocStringExtensions", "InteractiveUtils", "LibGit2", "Logging", "Markdown", "Pkg", "REPL", "Random", "Test", "Unicode"]
-git-tree-sha1 = "de745be4b00336588ab3269d5f43517e5c012973"
+deps = ["Base64", "Dates", "DocStringExtensions", "InteractiveUtils", "JSON", "LibGit2", "Logging", "Markdown", "REPL", "Test", "Unicode"]
+git-tree-sha1 = "0be9bf63e854a2408c2ecd3c600d68d4d87d8a73"
 uuid = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
-version = "0.21.1"
-
-[[HTTP]]
-deps = ["Base64", "Dates", "Distributed", "IniFile", "MbedTLS", "Sockets", "Test"]
-uuid = "cd3eb016-35fb-5094-929b-558a96fad6f3"
-
-[[IniFile]]
-uuid = "83e8ac13-25f8-5344-8a64-a9f2b223428f"
+version = "0.24.2"
 
 [[InteractiveUtils]]
-deps = ["LinearAlgebra", "Markdown"]
+deps = ["Markdown"]
 uuid = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
 
+[[JSON]]
+deps = ["Dates", "Mmap", "Parsers", "Unicode"]
+git-tree-sha1 = "b34d7cef7b337321e97d22242c3c2b91f476748e"
+uuid = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
+version = "0.21.0"
+
 [[LibGit2]]
 uuid = "76f85450-5226-5b5a-8eaa-529ad045b433"
 
 [[Libdl]]
 uuid = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 
-[[LinearAlgebra]]
-deps = ["Libdl"]
-uuid = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
-
 [[Logging]]
 uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"
 
@@ -69,15 +46,17 @@ uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"
 deps = ["Base64"]
 uuid = "d6f4376e-aef5-505a-96c1-9c027394607a"
 
-[[MbedTLS]]
-deps = ["BinaryProvider", "Dates", "Libdl", "Pkg", "Random", "Sockets"]
-uuid = "739be429-bea8-5141-9913-cc70e7f3736d"
-
 [[Mmap]]
 uuid = "a63ad114-7e13-5084-954f-fe012c677804"
 
+[[Parsers]]
+deps = ["Dates", "Test"]
+git-tree-sha1 = "0139ba59ce9bc680e2925aec5b7db79065d60556"
+uuid = "69de0a69-1ddd-5017-9359-2bf0b02dc9f0"
+version = "0.3.10"
+
 [[Pkg]]
-deps = ["BinaryProvider", "CredentialsHandler", "Dates", "LibGit2", "Markdown", "Printf", "REPL", "Random", "SHA", "TOML", "UUIDs"]
+deps = ["Dates", "LibGit2", "Libdl", "Logging", "Markdown", "Printf", "REPL", "Random", "SHA", "UUIDs"]
 uuid = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 
 [[Printf]]
@@ -98,31 +77,15 @@ uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"
 [[Serialization]]
 uuid = "9e88b42a-f829-5b0c-bbe9-9e923198166b"
 
-[[SharedArrays]]
-deps = ["Distributed", "Mmap", "Random", "Serialization"]
-uuid = "1a1011a3-84de-559e-8e89-a11a2f7dc383"
-
 [[Sockets]]
 uuid = "6462fe0b-24de-5631-8697-dd941f90decc"
 
-[[SparseArrays]]
-deps = ["LinearAlgebra", "Random"]
-uuid = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
-
-[[Statistics]]
-deps = ["LinearAlgebra", "SparseArrays"]
-uuid = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
-
-[[TOML]]
-deps = ["Dates"]
-uuid = "9d418dce-91a8-11e8-0173-7b01a971d501"
-
 [[Test]]
 deps = ["Distributed", "InteractiveUtils", "Logging", "Random"]
 uuid = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [[UUIDs]]
-deps = ["Random"]
+deps = ["Random", "SHA"]
 uuid = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"
 
 [[Unicode]]
diff --git a/docs/Project.toml b/docs/Project.toml
index 3471378..86fdb26 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -1,10 +1,8 @@
 authors = ["congedom "]
-version = "0.4.0"
+version = "0.4.1"
 
 [deps]
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
-LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
-Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
-#[compat]
-#Documenter = "~0.23"
+[compat]
+Documenter = "~0.24"
diff --git a/src/LOCAL_BUILD.jl b/src/LOCAL_BUILD.jl
index 4b2f7d1..1d82359 100644
--- a/src/LOCAL_BUILD.jl
+++ b/src/LOCAL_BUILD.jl
@@ -29,7 +29,7 @@ begin
 
     push!(LOAD_PATH, srcDir)
 
-    using Documenter, LinearAlgebra, Statistics, Base.Threads,
+    using Documenter, LinearAlgebra, Statistics,
           Revise, PosDefManifold
 
     # add other local moduls to be used, e.g.,
diff --git a/src/PosDefManifold.jl b/src/PosDefManifold.jl
index 29ebf3c..3cb0676 100644
--- a/src/PosDefManifold.jl
+++ b/src/PosDefManifold.jl
@@ -1,5 +1,5 @@
 #   Main Module of the  PosDefManifold Package for julia language
-#   v 0.4.0 - last update 3rd of December 2019
+#   v 0.4.1 - last update 11th of December 2019
 #
 #   MIT License
 #   Copyright (c) 2019, Marco Congedo, CNRS, Grenobe, France:
diff --git a/src/linearAlgebra.jl b/src/linearAlgebra.jl
index a962cd4..d3433d7 100644
--- a/src/linearAlgebra.jl
+++ b/src/linearAlgebra.jl
@@ -1,5 +1,4 @@
 #   Unit linearAlgebra.jl, part of PosDefManifold Package for julia language
-#   v 0.4.0 - last update 3rd of December 2019
 #
 #   MIT License
 #   Copyright (c) 2019, Marco Congedo, CNRS, Grenobe, France:
@@ -1351,7 +1350,7 @@ function spectralFunctions(P::ℍ{T}, func::Function) where T<:RealOrComplex
     F = eigen(P)
     ispos(F.values, msg="function "*string(func)*": at least one eigenvalue is smaller than the default tolerance")
     # optimize by computing only the upper trinagular part
-    return ℍ(F.vectors * 𝔻(func.(F.values)) * F.vectors')
+    return ℍ((F.vectors * 𝔻(func.(F.values))) * F.vectors')
 end
 
 spectralFunctions(D::𝔻{T}, func::Function) where T<:Real = fDiag(func, D)
@@ -1394,7 +1393,7 @@ function pow(P::ℍ{T}, args...) where T<:RealOrComplex # several arguments
     (Λ, U) = evd(P)
     ispos(Λ, msg="function pow: at least one eigenvalue is smaller than the default tolerance")
     # optimize by computing only the upper trinagular part
-    return  (ℍ(U * Λ^p * U') for p in args)
+    return  (ℍ((U * Λ^p) * U') for p in args)
 end
 
 function pow(D::𝔻{T}, args...) where T<:Real  # several arguments
diff --git a/src/riemannianGeometry.jl b/src/riemannianGeometry.jl
index 8f5d38e..698d986 100644
--- a/src/riemannianGeometry.jl
+++ b/src/riemannianGeometry.jl
@@ -1,5 +1,4 @@
 #    Unit riemannianGeometry.jl, part of PosDefManifold Package for julia language
-#   v 0.4.0 - last update 3rd of December 2019
 #
 #    MIT License
 #    Copyright (c) 2019, Marco Congedo, CNRS, Grenobe, France:
@@ -1144,7 +1143,15 @@ spEmb=spectralEmbedding
     @benchmark(mean(logEuclidean, Pset)) # multi-threaded
 
 """
-mean(metric::Metric, P::ℍ{T}, Q::ℍ{T}) where T<:RealOrComplex = geodesic(metric, P, Q, 0.5)
+mean(metric::Metric, P::ℍ{T}, Q::ℍ{T}) where T<:RealOrComplex =
+    if metric==Fisher && size(P, 1)>=120 #(faster proc: Congedo et al., 2005)
+        λ, B=eigen(P, Q) # the eigenvalues of Q are all 1.0 after diagonalization
+        A=(Diagonal(λ))^(0.25)*inv(B)
+        return ℍ(A'*A)
+    else
+        return geodesic(metric, P, Q, 0.5)
+    end
+
 mean(metric::Metric, D::𝔻{T}, E::𝔻{T}) where T<:Real = geodesic(metric, D, E, 0.5)
 
 function mean(metric::Metric, 𝐏::ℍVector;
diff --git a/src/signalProcessing.jl b/src/signalProcessing.jl
index 791cf45..419383e 100644
--- a/src/signalProcessing.jl
+++ b/src/signalProcessing.jl
@@ -1,5 +1,4 @@
 #    Unit signalProcessing.jl, part of PosDefManifold Package for julia language
-#    v 0.4.0 - last update 3rd of December 2019
 #
 #    MIT License
 #    Copyright (c) 2019, Marco Congedo, CNRS, Grenobe, France:
diff --git a/src/statistics.jl b/src/statistics.jl
index 7a6372d..c375cec 100644
--- a/src/statistics.jl
+++ b/src/statistics.jl
@@ -1,5 +1,4 @@
 #   Unit statistics.jl, part of PosDefManifold Package for julia language
-#   v 0.4.0 - last update 3rd of December 2019
 #
 #   MIT License
 #   Copyright (c) 2019, Marco Congedo, CNRS, Grenobe, France:
diff --git a/src/test.jl b/src/test.jl
index c45b381..0a71905 100644
--- a/src/test.jl
+++ b/src/test.jl
@@ -1,5 +1,4 @@
 #    Unit test.jl, part of PosDefManifold Package for julia language
-#    v 0.4.0 - last update 3rd of December 2019
 #
 #    MIT License
 #    Copyright (c) 2019, Marco Congedo, CNRS, Grenobe, France: