diff --git a/Project.toml b/Project.toml
index a43b17f..0162ffd 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "CxxWrap"
 uuid = "1f15a43c-97ca-5a2a-ae31-89f07a497df4"
 authors = ["Bart Janssens <bart@bartjanssens.org>"]
-version = "0.13.1"
+version = "0.13.2"
 
 [deps]
 Libdl = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
diff --git a/README.md b/README.md
index 97d6966..1770a78 100644
--- a/README.md
+++ b/README.md
@@ -872,6 +872,17 @@ mod.method("getSecondaryWorldVector", [](const World* p)->const std::vector<Worl
 
 Linking wrappers using STL support requires adding `JlCxx::cxxwrap_julia_stl` to the `target_link_libraries` command in `CMakeLists.txt`.
 
+## Release procedure
+
+Often, new releases of `CxxWrap` also require a new release of the C++ component `libcxxwrap-julia`, and a rebuild of its JLL package. To make sure everything is tested properly, the following procedure should be followed for each release that requires changing both the Julia and the C++ component:
+
+1. Merge the changes to `CxxWrap` into the `testjll` branch
+2. Create a PR in `libcxxwrap-julia` with the required changes there and make sure it passes all tests. These tests will run using the `CxxWrap#testjll` branch.
+3. Merge the `libcxxwrap-julia` PR. This will build and publish a JLL, available through the [CxxWrapTestRegistry](/~https://github.com/barche/CxxWrapTestRegistry)
+4. Make a PR in `CxxWrap` to merge `testjll` into `prerelease`. Verify that the tests pass (rerun them if needed, since the first push to `testjll` will have used the old JLL version). Don't merge this PR yet.
+5. Tag the next `libcxxwrap-julia` release and update to this new release in Yggdrasil
+6. Wait for the new JLL to appear in the registry and then merge the PR from point 4. Verify that the tests running on the `prerelease` branch pass, by merging the PR from point 4. The difference with the tests in the `testjll` branch is that the `prerelease` branch tests using the JLL in the Julia General repository.
+7. Merge the CxxWrap `prerelease` branch into `main` and create a new release using Registrator.
 
 ## Breaking changes for CxxWrap 0.7
 
diff --git a/src/CxxWrap.jl b/src/CxxWrap.jl
index 2c257b8..c1684f0 100644
--- a/src/CxxWrap.jl
+++ b/src/CxxWrap.jl
@@ -524,6 +524,7 @@ map_julia_arg_type(t::Type{ConstCxxRef{T}}, ::Type{IsNormalType}) where {T} = Un
 map_julia_arg_type(t::Type{ConstCxxPtr{T}}, ::Type{IsNormalType}) where {T} = Union{ConstPtrTypes{T},Ptr{Cvoid}}
 map_julia_arg_type(t::Type{CxxRef{T}}, ::Type{IsNormalType}) where {T} = PtrTypes{T}
 map_julia_arg_type(t::Type{CxxPtr{T}}, ::Type{IsNormalType}) where {T} = Union{PtrTypes{T},Ptr{Cvoid}}
+map_julia_arg_type(t::Type{CxxPtr{CxxPtr{CxxChar}}}, ::Type{IsNormalType}) = Union{PtrTypes{CxxPtr{CxxChar}},Ptr{Cvoid},Vector{String}}
 
 map_julia_arg_type(t::Type{ConstCxxRef{T}}, ::Type{IsNormalType}) where {T<:CxxNumber} = Union{ConstPtrTypes{julia_int_type(T)},map_julia_arg_type(T)}
 map_julia_arg_type(t::Type{ConstCxxPtr{T}}, ::Type{IsNormalType}) where {T<:CxxNumber} = Union{ConstPtrTypes{julia_int_type(T)},Ptr{Cvoid}}
@@ -560,6 +561,9 @@ Base.cconvert(to_type::Type{<:CxxBaseRef{T}}, v::CxxBaseRef{T}) where {T} = to_t
 Base.unsafe_convert(to_type::Type{<:CxxBaseRef{T}}, v::CxxBaseRef) where {T} = to_type(v.cpp_object)
 Base.unsafe_convert(to_type::Type{<:CxxBaseRef}, v::Base.RefValue) = to_type(pointer_from_objref(v))
 
+Base.cconvert(::Type{CxxPtr{CxxPtr{CxxChar}}}, v::Vector{String}) = Base.cconvert(Ptr{Ptr{Cchar}}, v)
+Base.unsafe_convert(to_type::Type{CxxPtr{CxxPtr{CxxChar}}}, a::Base.RefArray{Ptr{Int8}, Vector{Ptr{Int8}}, Any}) = to_type(Base.unsafe_convert(Ptr{Ptr{Cchar}}, a))
+
 cxxconvert(to_type::Type{<:CxxBaseRef{T}}, x, ::Type{IsNormalType}) where {T} = Ref{T}(convert(T,x))
 cxxconvert(to_type::Type{<:CxxBaseRef{T}}, x::Base.RefValue, ::Type{IsNormalType}) where {T} = x
 cxxconvert(to_type::Type{<:CxxBaseRef{T}}, x::Ptr{T}, ::Type{IsNormalType}) where {T} = to_type(x)
diff --git a/test/basic_types.jl b/test/basic_types.jl
index 9fe3c33..c099587 100644
--- a/test/basic_types.jl
+++ b/test/basic_types.jl
@@ -182,4 +182,8 @@ let (intnames, inttypes) = BasicTypes.julia_integer_mapping()
   end
 end
 
+let argv = ["one", "two", "three"]
+  @test BasicTypes.test_argv(Cint(length(argv)), argv) == join(argv)
 end
+
+end
\ No newline at end of file