diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7b1a3dd..d367990 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,13 +5,23 @@ 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).
 
-## [Unreleased]
+
+## [1.2.3] - 2025-08-22
+
+### Added
+- Increased test coverage for the `time_log.py` module from 88% to 100%.
+
+
+## [1.2.2] - 2025-08-22
 
 ### Added
-- Your new feature here.
+- Increased test coverage for the `manual_entry.py` module from 72% to 98%.
+
+
+## [1.2.1] - 2025-08-22
 
 ### Fixed
-- Your new fix here.
+- Corrected and updated the release comparison links in `CHANGELOG.md`.
 
 
 ## [1.2.0] - 2025-08-07
@@ -137,8 +147,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Flexible database configuration (SQLite/PostgreSQL).
 
 
-[Unreleased]: https://github.com/PPeitsch/TimeTrack/compare/v1.0.1...HEAD
-[1.1.1]: https://github.com/PPeitsch/TimeTrack/compare/v1.1.0....v1.1.1
+
+[1.2.3]: https://github.com/PPeitsch/TimeTrack/compare/v1.2.2...v1.2.3
+[1.2.2]: https://github.com/PPeitsch/TimeTrack/compare/v1.2.1...v1.2.2
+[1.2.1]: https://github.com/PPeitsch/TimeTrack/compare/v1.2.0...v1.2.1
+[1.2.0]: https://github.com/PPeitsch/TimeTrack/compare/v1.1.1...v1.2.0
+[1.1.1]: https://github.com/PPeitsch/TimeTrack/compare/v1.1.0...v1.1.1
 [1.1.0]: https://github.com/PPeitsch/TimeTrack/compare/v1.0.9...v1.1.0
 [1.0.9]: https://github.com/PPeitsch/TimeTrack/compare/v1.0.8...v1.0.9
 [1.0.8]: https://github.com/PPeitsch/TimeTrack/compare/v1.0.7...v1.0.8
diff --git a/requirements.txt b/requirements.txt
index 9002531..f835f94 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,5 +7,3 @@ requests==2.32.3
 psycopg2-binary==2.9.10
 python-dotenv==1.0.1
 beautifulsoup4==4.13.0b2
-black==24.10.0
-isort==6.0.0b2
diff --git a/tests/test_routes.py b/tests/test_routes.py
index e147a6a..c52735e 100644
--- a/tests/test_routes.py
+++ b/tests/test_routes.py
@@ -1,9 +1,12 @@
 import json
 import unittest
 from datetime import date, datetime
+from unittest.mock import patch
+
+from flask import jsonify
 
 from app.db.database import db
-from app.models.models import Employee, ScheduleEntry
+from app.models.models import Employee, ScheduleEntry, Holiday
 
 
 class TestRoutes(unittest.TestCase):
@@ -19,6 +22,12 @@ class TestConfig(Config):
         self.app = create_app(TestConfig)
         self.client = self.app.test_client()
 
+        from werkzeug.exceptions import BadRequest
+
+        @self.app.errorhandler(BadRequest)
+        def handle_bad_request(e):
+            return jsonify(error="Bad Request"), 400
+
         with self.app.app_context():
             db.create_all()
             # Create a default employee
@@ -88,6 +97,153 @@ def test_manual_entry_route_post_invalid(self):
         data = json.loads(response.data)
         self.assertIn("error", data)
 
+    def test_manual_entry_post_bad_json(self):
+        response = self.client.post("/entry", data="{", content_type="application/json")
+        self.assertEqual(response.status_code, 400)
+        data = json.loads(response.data)
+        self.assertEqual(data["error"], "Bad Request")
+
+    def test_manual_entry_post_missing_fields(self):
+        # Test missing date
+        response = self.client.post(
+            "/entry",
+            data=json.dumps({"employee_id": 1}),
+            content_type="application/json",
+        )
+        self.assertEqual(response.status_code, 400)
+        self.assertEqual(json.loads(response.data)["error"], "Date is required")
+
+        # Test missing employee_id
+        response = self.client.post(
+            "/entry",
+            data=json.dumps(
+                {"date": "2025-03-16", "entries": [{"entry": "09:00", "exit": "17:00"}]}
+            ),
+            content_type="application/json",
+        )
+        self.assertEqual(response.status_code, 400)
+        self.assertEqual(json.loads(response.data)["error"], "Employee ID is required")
+
+        # Test missing entries for work day
+        response = self.client.post(
+            "/entry",
+            data=json.dumps(
+                {"date": "2025-03-16", "employee_id": 1, "absence_code": None}
+            ),
+            content_type="application/json",
+        )
+        self.assertEqual(response.status_code, 400)
+        self.assertEqual(
+            json.loads(response.data)["error"], "Entries are required for work day"
+        )
+
+    def test_manual_entry_post_invalid_date(self):
+        entry_data = {"date": "invalid-date", "employee_id": 1}
+        response = self.client.post(
+            "/entry", data=json.dumps(entry_data), content_type="application/json"
+        )
+        self.assertEqual(response.status_code, 400)
+        self.assertEqual(json.loads(response.data)["error"], "Invalid date format")
+
+    def test_manual_entry_post_empty_entries(self):
+        entry_data = {
+            "date": "2025-03-16",
+            "employee_id": 1,
+            "entries": [],
+            "absence_code": None,
+        }
+        response = self.client.post(
+            "/entry", data=json.dumps(entry_data), content_type="application/json"
+        )
+        self.assertEqual(response.status_code, 400)
+        self.assertEqual(
+            json.loads(response.data)["error"], "No time entries provided for work day"
+        )
+
+    def test_manual_entry_update_existing(self):
+        # First, create an entry
+        entry_data = {
+            "date": "2025-03-18",
+            "employee_id": 1,
+            "entries": [{"entry": "09:00", "exit": "12:00"}],
+            "absence_code": None,
+        }
+        self.client.post(
+            "/entry", data=json.dumps(entry_data), content_type="application/json"
+        )
+
+        # Now, update it
+        update_data = {
+            "date": "2025-03-18",
+            "employee_id": 1,
+            "entries": [{"entry": "09:00", "exit": "13:00"}],  # Changed exit time
+            "absence_code": None,
+        }
+        response = self.client.post(
+            "/entry", data=json.dumps(update_data), content_type="application/json"
+        )
+        self.assertEqual(response.status_code, 200)
+
+        with self.app.app_context():
+            entry = ScheduleEntry.query.filter_by(
+                date=datetime.strptime("2025-03-18", "%Y-%m-%d").date()
+            ).first()
+            self.assertEqual(len(entry.entries), 1)
+            self.assertEqual(entry.entries[0]["exit"], "13:00")
+
+    def test_get_entry_not_found(self):
+        response = self.client.get("/entry/2025-01-01")
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(json.loads(response.data), {})
+
+    def test_get_entry_found(self):
+        # Create an entry to find
+        entry_date = "2025-03-19"
+        entry_data = {
+            "date": entry_date,
+            "employee_id": 1,
+            "entries": [{"entry": "10:00", "exit": "18:00"}],
+            "absence_code": None,
+        }
+        self.client.post(
+            "/entry", data=json.dumps(entry_data), content_type="application/json"
+        )
+
+        response = self.client.get(f"/entry/{entry_date}")
+        self.assertEqual(response.status_code, 200)
+        data = json.loads(response.data)
+        self.assertEqual(len(data["entries"]), 1)
+        self.assertEqual(data["entries"][0]["entry"], "10:00")
+        self.assertEqual(data["hours"], 8.0)
+
+    def test_get_entry_invalid_date(self):
+        response = self.client.get("/entry/invalid-date")
+        self.assertEqual(response.status_code, 400)
+        self.assertEqual(json.loads(response.data)["error"], "Invalid date format")
+
+    def test_manual_entry_post_absence(self):
+        entry_data = {
+            "date": "2025-03-20",
+            "employee_id": 1,
+            "entries": [],
+            "absence_code": "VAC",
+        }
+        response = self.client.post(
+            "/entry", data=json.dumps(entry_data), content_type="application/json"
+        )
+        self.assertEqual(response.status_code, 200)
+        data = json.loads(response.data)
+        self.assertEqual(data["status"], "success")
+        self.assertNotIn("hours", data)  # No hours for absence
+
+        with self.app.app_context():
+            entry = ScheduleEntry.query.filter_by(
+                date=datetime.strptime("2025-03-20", "%Y-%m-%d").date()
+            ).first()
+            self.assertIsNotNone(entry)
+            self.assertEqual(entry.absence_code, "VAC")
+            self.assertEqual(entry.entries, [])
+
     def test_time_summary_route(self):
         # Test the time summary route
         response = self.client.get("/summary/")
@@ -154,6 +310,71 @@ def test_monthly_summary_route(self):
         self.assertIn("required", data)
         self.assertIn("difference", data)
 
+        # More specific check for required hours
+        # March 2025 has 21 working days. 21 * 8 = 168.
+        # We added one absence day, so required hours should be 160.
+        self.assertEqual(data["required"], 160.0)
+        self.assertEqual(data["total"], 8.0)
+
+    def test_daily_summary_for_absence(self):
+        # Create an absence entry
+        with self.app.app_context():
+            entry_date = date(2025, 4, 1) # A Tuesday
+            absence_entry = ScheduleEntry(
+                employee_id=1, date=entry_date, entries=[], absence_code="SICK"
+            )
+            db.session.add(absence_entry)
+            db.session.commit()
+
+        response = self.client.get("/summary/daily/2025-04-01")
+        self.assertEqual(response.status_code, 200)
+        data = json.loads(response.data)
+        self.assertEqual(data["type"], "SICK")
+        self.assertEqual(data["hours"], 0)
+        self.assertEqual(data["required"], 0)
+
+    def test_daily_summary_for_holiday(self):
+        # Create a holiday
+        with self.app.app_context():
+            holiday_date = date(2025, 5, 1) # A Thursday
+            holiday = Holiday(date=holiday_date, description="Labor Day")
+            db.session.add(holiday)
+            db.session.commit()
+
+        response = self.client.get("/summary/daily/2025-05-01")
+        self.assertEqual(response.status_code, 200)
+        data = json.loads(response.data)
+        self.assertEqual(data["type"], "Holiday")
+        self.assertEqual(data["hours"], 0)
+        self.assertEqual(data["required"], 0)
+
+    def test_daily_summary_for_weekend(self):
+        # A known weekend date
+        response = self.client.get("/summary/daily/2025-03-16") # A Sunday
+        self.assertEqual(response.status_code, 200)
+        data = json.loads(response.data)
+        self.assertEqual(data["type"], "Weekend")
+        self.assertEqual(data["hours"], 0)
+        self.assertEqual(data["required"], 0)
+
+    def test_daily_summary_exception(self):
+        with self.app.app_context():
+            with patch("app.routes.time_summary.ScheduleEntry.query") as mock_query:
+                mock_query.filter_by.side_effect = Exception("DB Error")
+                response = self.client.get("/summary/daily/2025-01-01")
+                self.assertEqual(response.status_code, 500)
+                data = json.loads(response.data)
+                self.assertEqual(data["error"], "DB Error")
+
+    @patch("app.routes.time_summary.date")
+    def test_monthly_summary_exception(self, mock_date):
+        with self.app.app_context():
+            mock_date.side_effect = Exception("Date Error")
+            response = self.client.get("/summary/monthly/2025/1")
+            self.assertEqual(response.status_code, 500)
+            data = json.loads(response.data)
+            self.assertEqual(data["error"], "Date Error")
+
     def test_monthly_logs_route(self):
         # Create a test entry first
         with self.app.app_context():
@@ -183,6 +404,44 @@ def test_monthly_logs_route(self):
         self.assertIn("entries", entry)
         self.assertIn("total_hours", entry)
 
+    def test_monthly_logs_with_absence(self):
+        # Create an absence entry
+        with self.app.app_context():
+            entry_date = date(2025, 4, 15)
+            absence_entry = ScheduleEntry(
+                employee_id=1, date=entry_date, entries=[], absence_code="VAC"
+            )
+            db.session.add(absence_entry)
+            db.session.commit()
+
+        # Test getting monthly logs for the month with the absence
+        response = self.client.get("/logs/monthly/2025/4")
+        self.assertEqual(response.status_code, 200)
+        data = json.loads(response.data)
+
+        # Find the absence entry in the response
+        absence_found = False
+        for entry in data:
+            if entry["date"] == "2025-04-15":
+                self.assertEqual(entry["type"], "VAC")
+                self.assertEqual(entry["total_hours"], 0)
+                absence_found = True
+                break
+        self.assertTrue(absence_found, "Absence entry not found in response")
+
+    def test_monthly_logs_exception(self):
+        with self.app.app_context():
+            with patch("app.routes.time_log.ScheduleEntry.query") as mock_query:
+                # Configure the mock to raise an exception when used
+                mock_query.filter.side_effect = Exception("Database connection failed")
+
+                # Test that the exception is handled and a 500 error is returned
+                response = self.client.get("/logs/monthly/2025/5")
+                self.assertEqual(response.status_code, 500)
+                data = json.loads(response.data)
+                self.assertIn("error", data)
+                self.assertEqual(data["error"], "Database connection failed")
+
 
 if __name__ == "__main__":
     unittest.main()