diff --git a/README.md b/README.md
index 39d4f94..f8a820d 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Development repo for draft versions of Python bindings for OptFrame Functional C
 
 Install: `python -m pip install optframe`
 
-Version: `pyoptframe v5.0.28rc0`
+Version: `pyoptframe v5.0.28`
 
 Play on Jupyter Notebook: [BRKGA Traveling Salesman Problem Example](demo/OptFrame_BRKGA_Official.ipynb)
 
diff --git a/bumpver.toml b/bumpver.toml
index 9eeddb5..c8011f8 100644
--- a/bumpver.toml
+++ b/bumpver.toml
@@ -1,5 +1,5 @@
 [bumpver]
-current_version = "5.0.28rc0"
+current_version = "5.0.28"
 version_pattern = "MAJOR.MINOR.PATCH[PYTAGNUM]"
 commit_message = "bump version {old_version} -> {new_version}"
 commit = true
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 9019a03..ed62b1c 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -22,7 +22,7 @@
 author = 'Igor Machado Coelho'
 
 # The full version, including alpha/beta/rc tags
-release = 'v5.0.28rc0'
+release = 'v5.0.28'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/optframe/__init__.py b/optframe/__init__.py
index c7d34a4..b1f69f8 100644
--- a/optframe/__init__.py
+++ b/optframe/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '5.0.28rc0'
+__version__ = '5.0.28'
 # only useful stuff for root level here!
 from optframe.engine import Engine
 from optframe.engine import APILevel
diff --git a/optframe/heuristics.py b/optframe/heuristics.py
index 0d2c553..b3e293f 100644
--- a/optframe/heuristics.py
+++ b/optframe/heuristics.py
@@ -128,6 +128,26 @@ def __init__(self, _engine: XEngine, _ev: IdGeneralEvaluator, _nsseq: IdNSSeq):
     def get_id(self) -> IdLocalSearch:
         return self.ls_idx
 
+class FirstImprovement(LocalSearch):
+    def __init__(self, _engine: XEngine, _ev: IdGeneralEvaluator, _nsseq: IdNSSeq):
+        assert isinstance(_engine, XEngine)
+        if (isinstance(_ev, int)):
+            _ev = IdGeneralEvaluator(_ev)
+        if (not isinstance(_ev, IdGeneralEvaluator)):
+            print(_ev)
+            assert (False)
+        if (isinstance(_nsseq, int)):
+            _nsseq = IdNSSeq(_nsseq)
+        if (not isinstance(_nsseq, IdNSSeq)):
+            print(_nsseq)
+            assert (False)
+        self.engine = _engine
+        str_code    = "OptFrame:ComponentBuilder:LocalSearch:FI"
+        str_args    = "OptFrame:GeneralEvaluator "+str(_ev.id)+" OptFrame:NS:NSFind:NSSeq "+str(_nsseq.id)
+        self.ls_idx  = self.engine.build_local_search(str_code, str_args)
+    def get_id(self) -> IdLocalSearch:
+        return self.ls_idx
+
 class VariableNeighborhoodDescent(LocalSearch):
     def __init__(self, _engine: XEngine, _ev: IdGeneralEvaluator, _lslist: IdListLocalSearch):
         assert isinstance(_engine, XEngine)
diff --git a/pyproject.toml b/pyproject.toml
index a7622d3..1d02432 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "optframe"
-version = "5.0.28rc0"
+version = "5.0.28"
 description = "Python bindings for OptFrame Functional Core"
 readme = "README.md"
 authors = [{ name = "Igor Machado Coelho", email = "igormcoelho@proton.me" }]
@@ -27,4 +27,4 @@ requires-python = ">=3.9"
 dev = ["black", "bumpver", "isort", "pip-tools", "pytest"]
 
 [project.urls]
-Homepage = "https://github.com/optframe/pyoptframe-dev"
+Homepage = "https://github.com/optframe/pyoptframe"
diff --git a/setup.py b/setup.py
index 115b28b..7f5222e 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@ class CTypesExtension(Extension):
 class MyBuildExt(build_ext_orig):
     def run(self):
         subprocess.check_call(
-            ['git', 'clone', '--depth', '1', '--branch', '5.0.18', 'https://github.com/optframe/optframe', 'optframe-git'])        
+            ['git', 'clone', '--depth', '1', '--branch', '5.1.0', 'https://github.com/optframe/optframe', 'optframe-git'])        
         build_ext_orig.run(self)
 
     def build_extension(self, ext):
@@ -49,7 +49,7 @@ def get_ext_filename(self, ext_name):
 
 setup(
     name="optframe",
-    version="5.0.28rc0",
+    version="5.0.28",
     py_modules=["optframe.components","optframe.core","optframe.engine","optframe.heuristics","optframe.protocols"],
     ext_modules=[
         CTypesExtension(