diff --git a/NEWS.md b/NEWS.md
index d52db39..eceb575 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.4.3] 2024-07-18
+
+### Added
+
+- Added distributed refinement of unstructured meshes. Since PR[#149](https://github.com/gridap/GridapDistributed.jl/pull/149).
+
 ## [0.4.2] 2024-07-4
 
 ### Added
diff --git a/Project.toml b/Project.toml
index 9255dfd..00162ac 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "GridapDistributed"
 uuid = "f9701e48-63b3-45aa-9a63-9bc6c271f355"
 authors = ["S. Badia <santiago.badia@monash.edu>", "A. F. Martin <alberto.f.martin@anu.edu.au>", "F. Verdugo <f.verdugo.rojano@vu.nl>"]
-version = "0.4.2"
+version = "0.4.3"
 
 [deps]
 BlockArrays = "8e7c35d0-a365-5155-bbbb-fb81a777f24e"
@@ -17,7 +17,7 @@ WriteVTK = "64499a7a-5c06-52f2-abe2-ccb03c286192"
 [compat]
 BlockArrays = "0.16.38"
 FillArrays = "0.8.4,1"
-Gridap = "0.18"
+Gridap = "0.18.3"
 LinearAlgebra = "1.3"
 MPI = "0.16, 0.17, 0.18, 0.19, 0.20"
 PartitionedArrays = "0.3.3"
diff --git a/src/Adaptivity.jl b/src/Adaptivity.jl
index 77dcd87..1ce6bb9 100644
--- a/src/Adaptivity.jl
+++ b/src/Adaptivity.jl
@@ -642,6 +642,10 @@ function redistribute_cartesian(
       > Old: $(repr("text/plain",old_model.metadata))
       > New: $(repr("text/plain",_new_model.metadata))
     "
+    msg1 = "Both models should have the same number of cells for redistribution!"
+    @check old_model.metadata.descriptor.partition == ncells msg1
+    msg2 = "Only redistribution to a higher number of processors is supported!"
+    @check prod(old_model.metadata.mesh_partition) <= prod(new_parts) msg2
   end
 
   rglue = get_cartesian_redistribute_glue(_new_model,old_model;old_ranks)
@@ -1105,7 +1109,6 @@ function refine_cell_gids(
 
     own2global = own_to_global(own_gids)
   
-    n_nbors = length(ghost_lids)
     n_own   = length(own_lids)
     n_ghost = length(ghost_lids.data)
     local2global = fill(0,n_own+n_ghost)