diff --git a/README.md b/README.md
index 8f5897fa..eeecb598 100644
--- a/README.md
+++ b/README.md
@@ -23,8 +23,6 @@ Say goodbye to time-consuming manual searches, and let <strong><a href="https://
  
 </div>
 
-### 🎃 [Hacktoberfest Prizes, Rules & Q&A](https://github.com/arc53/DocsGPT/blob/main/HACKTOBERFEST.md) 🎃
-
 ### Production Support / Help for Companies:
 
 We're eager to provide personalized assistance when deploying your DocsGPT to a live environment.
diff --git a/application/api/answer/routes.py b/application/api/answer/routes.py
index e05de123..182cdf2b 100644
--- a/application/api/answer/routes.py
+++ b/application/api/answer/routes.py
@@ -11,8 +11,8 @@ from bson.objectid import ObjectId
 from flask import Blueprint, current_app, make_response, request, Response
 from flask_restx import fields, Namespace, Resource
 
-from pymongo import MongoClient
 
+from application.core.mongo_db import MongoDB
 from application.core.settings import settings
 from application.error import bad_request
 from application.extensions import api
@@ -22,7 +22,7 @@ from application.utils import check_required_fields
 
 logger = logging.getLogger(__name__)
 
-mongo = MongoClient(settings.MONGO_URI)
+mongo = MongoDB.get_client()
 db = mongo["docsgpt"]
 conversations_collection = db["conversations"]
 sources_collection = db["sources"]
diff --git a/application/api/internal/routes.py b/application/api/internal/routes.py
index 6ecb4346..c8e32d11 100755
--- a/application/api/internal/routes.py
+++ b/application/api/internal/routes.py
@@ -1,13 +1,13 @@
 import os
 import datetime
 from flask import Blueprint, request, send_from_directory
-from pymongo import MongoClient
 from werkzeug.utils import secure_filename
 from bson.objectid import ObjectId
 
+from application.core.mongo_db import MongoDB
 from application.core.settings import settings
 
-mongo = MongoClient(settings.MONGO_URI)
+mongo = MongoDB.get_client()
 db = mongo["docsgpt"]
 conversations_collection = db["conversations"]
 sources_collection = db["sources"]
diff --git a/application/api/user/routes.py b/application/api/user/routes.py
index 794c69d4..b243179e 100644
--- a/application/api/user/routes.py
+++ b/application/api/user/routes.py
@@ -8,18 +8,18 @@ from bson.dbref import DBRef
 from bson.objectid import ObjectId
 from flask import Blueprint, jsonify, make_response, request
 from flask_restx import inputs, fields, Namespace, Resource
-from pymongo import MongoClient
 from werkzeug.utils import secure_filename
 
 from application.api.user.tasks import ingest, ingest_remote
 
+from application.core.mongo_db import MongoDB
 from application.core.settings import settings
 from application.extensions import api
 from application.utils import check_required_fields
 from application.vectorstore.vector_creator import VectorCreator
 from application.tts.google_tts import GoogleTTS
 
-mongo = MongoClient(settings.MONGO_URI)
+mongo = MongoDB.get_client()
 db = mongo["docsgpt"]
 conversations_collection = db["conversations"]
 sources_collection = db["sources"]
@@ -343,6 +343,7 @@ class UploadFile(Resource):
                         ".mdx",
                         ".json",
                         ".xlsx",
+                        ".pptx",
                     ],
                     job_name,
                     final_filename,
diff --git a/application/core/mongo_db.py b/application/core/mongo_db.py
new file mode 100644
index 00000000..52006aa7
--- /dev/null
+++ b/application/core/mongo_db.py
@@ -0,0 +1,24 @@
+from application.core.settings import settings
+from pymongo import MongoClient
+
+
+class MongoDB:
+    _client = None
+
+    @classmethod
+    def get_client(cls):
+        """
+        Get the MongoDB client instance, creating it if necessary.
+        """
+        if cls._client is None:
+            cls._client = MongoClient(settings.MONGO_URI)
+        return cls._client
+
+    @classmethod
+    def close_client(cls):
+        """
+        Close the MongoDB client connection.
+        """
+        if cls._client is not None:
+            cls._client.close()
+            cls._client = None
diff --git a/application/parser/file/bulk.py b/application/parser/file/bulk.py
index bb63aa61..3b8fbca8 100644
--- a/application/parser/file/bulk.py
+++ b/application/parser/file/bulk.py
@@ -12,6 +12,7 @@ from application.parser.file.markdown_parser import MarkdownParser
 from application.parser.file.rst_parser import RstParser
 from application.parser.file.tabular_parser import PandasCSVParser,ExcelParser
 from application.parser.file.json_parser import JSONParser
+from application.parser.file.pptx_parser import PPTXParser
 from application.parser.schema.base import Document
 
 DEFAULT_FILE_EXTRACTOR: Dict[str, BaseParser] = {
@@ -25,6 +26,7 @@ DEFAULT_FILE_EXTRACTOR: Dict[str, BaseParser] = {
     ".html": HTMLParser(),
     ".mdx": MarkdownParser(),
     ".json":JSONParser(),
+    ".pptx":PPTXParser(),
 }
 
 
diff --git a/application/parser/file/pptx_parser.py b/application/parser/file/pptx_parser.py
new file mode 100644
index 00000000..00cb3698
--- /dev/null
+++ b/application/parser/file/pptx_parser.py
@@ -0,0 +1,75 @@
+"""PPT parser.
+Contains parsers for presentation (.pptx) files to extract slide text.
+"""
+from pathlib import Path
+from typing import Any, Dict, List, Union
+
+from application.parser.file.base_parser import BaseParser
+
+class PPTXParser(BaseParser):
+    r"""PPTX (.pptx) parser for extracting text from PowerPoint slides.
+    Args:
+        concat_slides (bool): Specifies whether to concatenate all slide text into one document.
+            - If True, slide texts will be joined together as a single string.
+            - If False, each slide's text will be stored as a separate entry in a list.
+            Set to True by default.
+        slide_separator (str): Separator used to join slides' text content.
+            Only used when `concat_slides=True`. Default is "\n".
+        Refer to https://python-pptx.readthedocs.io/en/latest/ for more information.
+    """
+
+    def __init__(
+        self,
+        *args: Any,
+        concat_slides: bool = True,
+        slide_separator: str = "\n",
+        **kwargs: Any
+    ) -> None:
+        """Init params."""
+        super().__init__(*args, **kwargs)
+        self._concat_slides = concat_slides
+        self._slide_separator = slide_separator
+
+    def _init_parser(self) -> Dict:
+        """Init parser."""
+        return {}
+
+    def parse_file(self, file: Path, errors: str = "ignore") -> Union[str, List[str]]:
+        r"""
+        Parse a .pptx file and extract text from each slide.
+        Args:
+            file (Path): Path to the .pptx file.
+            errors (str): Error handling policy ('ignore' by default).
+        Returns:
+            Union[str, List[str]]: Concatenated text if concat_slides is True,
+            otherwise a list of slide texts.
+        """
+
+        try:
+            from pptx import Presentation
+        except ImportError:
+            raise ImportError("pptx module is required to read .PPTX files.")
+
+        try:
+            presentation = Presentation(file)
+            slide_texts=[]
+
+            # Iterate over each slide in the presentation
+            for slide in presentation.slides:
+                slide_text=""
+
+                # Iterate over each shape in the slide
+                for shape in slide.shapes:
+                    # Check if the shape has a 'text' attribute and append that to the slide_text
+                    if hasattr(shape,"text"):
+                        slide_text+=shape.text
+
+                slide_texts.append(slide_text.strip())
+
+            if self._concat_slides:
+                return self._slide_separator.join(slide_texts)
+            else:
+                return slide_texts
+
+        except Exception as e:
+            raise e
\ No newline at end of file
diff --git a/application/requirements.txt b/application/requirements.txt
index aad629f1..2f28c2ea 100644
--- a/application/requirements.txt
+++ b/application/requirements.txt
@@ -14,6 +14,7 @@ esutils==1.0.1
 Flask==3.0.3
 faiss-cpu==1.8.0.post1
 flask-restx==1.3.0
+gTTS==2.3.2
 gunicorn==23.0.0
 html2text==2024.2.26
 javalang==0.13.0
@@ -65,6 +66,7 @@ pymongo==4.8.0
 pypdf2==3.0.1
 python-dateutil==2.9.0.post0
 python-dotenv==1.0.1
+python-pptx==1.0.2
 qdrant-client==1.11.0
 redis==5.0.1
 referencing==0.30.2
@@ -84,5 +86,4 @@ urllib3==2.2.3
 vine==5.1.0
 wcwidth==0.2.13
 werkzeug==3.0.4
-yarl==1.11.1
-gTTS==2.3.2
\ No newline at end of file
+yarl==1.11.1
\ No newline at end of file
diff --git a/application/retriever/brave_search.py b/application/retriever/brave_search.py
index 29666a57..1fd844b2 100644
--- a/application/retriever/brave_search.py
+++ b/application/retriever/brave_search.py
@@ -75,7 +75,6 @@ class BraveRetSearch(BaseRetriever):
         if len(self.chat_history) > 1:
             tokens_current_history = 0
             # count tokens in history
-            self.chat_history.reverse()
             for i in self.chat_history:
                 if "prompt" in i and "response" in i:
                     tokens_batch = num_tokens_from_string(i["prompt"]) + num_tokens_from_string(
diff --git a/application/retriever/classic_rag.py b/application/retriever/classic_rag.py
index b87b5852..6a67cb38 100644
--- a/application/retriever/classic_rag.py
+++ b/application/retriever/classic_rag.py
@@ -78,7 +78,6 @@ class ClassicRAG(BaseRetriever):
         if len(self.chat_history) > 1:
             tokens_current_history = 0
             # count tokens in history
-            self.chat_history.reverse()
             for i in self.chat_history:
                 if "prompt" in i and "response" in i:
                     tokens_batch = num_tokens_from_string(i["prompt"]) + num_tokens_from_string(
@@ -97,7 +96,6 @@ class ClassicRAG(BaseRetriever):
         llm = LLMCreator.create_llm(
             settings.LLM_NAME, api_key=settings.API_KEY, user_api_key=self.user_api_key
         )
-
         completion = llm.gen_stream(model=self.gpt_model, messages=messages_combine)
         for line in completion:
             yield {"answer": str(line)}
diff --git a/application/retriever/duckduck_search.py b/application/retriever/duckduck_search.py
index d746ecaa..6ae56226 100644
--- a/application/retriever/duckduck_search.py
+++ b/application/retriever/duckduck_search.py
@@ -92,7 +92,6 @@ class DuckDuckSearch(BaseRetriever):
         if len(self.chat_history) > 1:
             tokens_current_history = 0
             # count tokens in history
-            self.chat_history.reverse()
             for i in self.chat_history:
                 if "prompt" in i and "response" in i:
                     tokens_batch = num_tokens_from_string(i["prompt"]) + num_tokens_from_string(
diff --git a/application/usage.py b/application/usage.py
index aba0ec77..e87ebe38 100644
--- a/application/usage.py
+++ b/application/usage.py
@@ -1,10 +1,9 @@
 import sys
-from pymongo import MongoClient
 from datetime import datetime
-from application.core.settings import settings
+from application.core.mongo_db import MongoDB
 from application.utils import num_tokens_from_string
 
-mongo = MongoClient(settings.MONGO_URI)
+mongo = MongoDB.get_client()
 db = mongo["docsgpt"]
 usage_collection = db["token_usage"]
 
diff --git a/application/worker.py b/application/worker.py
index f8f38afa..33cd90e5 100755
--- a/application/worker.py
+++ b/application/worker.py
@@ -8,8 +8,8 @@ from urllib.parse import urljoin
 
 import requests
 from bson.objectid import ObjectId
-from pymongo import MongoClient
 
+from application.core.mongo_db import MongoDB
 from application.core.settings import settings
 from application.parser.file.bulk import SimpleDirectoryReader
 from application.parser.open_ai_func import call_openai_api
@@ -18,7 +18,7 @@ from application.parser.schema.base import Document
 from application.parser.token_func import group_split
 from application.utils import count_tokens_docs
 
-mongo = MongoClient(settings.MONGO_URI)
+mongo = MongoDB.get_client()
 db = mongo["docsgpt"]
 sources_collection = db["sources"]
 
diff --git a/docs/theme.config.jsx b/docs/theme.config.jsx
index 2b868db7..777a0ed5 100644
--- a/docs/theme.config.jsx
+++ b/docs/theme.config.jsx
@@ -51,6 +51,9 @@ const config = {
   footer: {
     text: `MIT ${new Date().getFullYear()} © DocsGPT`,
   },
+  editLink: {
+    content: 'Edit this page on GitHub',
+  },
   logo() {
     return (
       <div className="flex items-center gap-2">
diff --git a/frontend/src/index.css b/frontend/src/index.css
index 9b87724a..4319403e 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -4,6 +4,7 @@
 
 :root {
   --viewport-height: 100vh;
+  font-synthesis: none !important;
 }
 
 @supports (height: 100dvh) {
diff --git a/frontend/src/locale/en.json b/frontend/src/locale/en.json
index a1f254ac..b1268df7 100644
--- a/frontend/src/locale/en.json
+++ b/frontend/src/locale/en.json
@@ -12,7 +12,7 @@
   "cancel": "Cancel",
   "help": "Help",
   "emailUs": "Email us",
-  "documentation": "documentation",
+  "documentation": "Documentation",
   "demo": [
     {
       "header": "Learn about DocsGPT",
@@ -86,7 +86,7 @@
       "start": "Start Chatting",
       "name": "Name",
       "choose": "Choose Files",
-      "info": "Please upload .pdf, .txt, .rst, .csv, .xlsx, .docx, .md, .html, .epub, .json, .zip limited to 25mb",
+      "info": "Please upload .pdf, .txt, .rst, .csv, .xlsx, .docx, .md, .html, .epub, .json, .pptx, .zip limited to 25mb",
       "uploadedFiles": "Uploaded Files",
       "cancel": "Cancel",
       "train": "Train",
diff --git a/frontend/src/locale/es.json b/frontend/src/locale/es.json
index 6a096ffd..296dbb16 100644
--- a/frontend/src/locale/es.json
+++ b/frontend/src/locale/es.json
@@ -12,7 +12,7 @@
   "cancel": "Cancelar",
   "help": "Asistencia",
   "emailUs": "Envíanos un correo",
-  "documentation": "documentación",
+  "documentation": "Documentación",
   "demo": [
     {
       "header": "Aprende sobre DocsGPT",
@@ -86,7 +86,7 @@
       "start": "Empezar a chatear",
       "name": "Nombre",
       "choose": "Seleccionar Archivos",
-      "info": "Por favor, suba archivos .pdf, .txt, .rst, .csv, .xlsx, .docx, .md, .html, .epub, .json, .zip limitados a 25 MB",
+      "info": "Por favor, suba archivos .pdf, .txt, .rst, .csv, .xlsx, .docx, .md, .html, .epub, .json, .pptx, .zip limitados a 25 MB",
       "uploadedFiles": "Archivos Subidos",
       "cancel": "Cancelar",
       "train": "Entrenar",
diff --git a/frontend/src/locale/jp.json b/frontend/src/locale/jp.json
index 841a477b..a69ae31f 100644
--- a/frontend/src/locale/jp.json
+++ b/frontend/src/locale/jp.json
@@ -86,7 +86,7 @@
       "start": "チャットを開始する",
       "name": "名前",
       "choose": "ファイルを選択",
-      "info": ".pdf, .txt, .rst, .docx, .md, .json, .zipファイルを25MBまでアップロードしてください",
+      "info": ".pdf, .txt, .rst, .docx, .md, .json, .pptx, .zipファイルを25MBまでアップロードしてください",
       "uploadedFiles": "アップロードされたファイル",
       "cancel": "キャンセル",
       "train": "トレーニング",
diff --git a/frontend/src/locale/zh-TW.json b/frontend/src/locale/zh-TW.json
index 35df818b..fa0638f4 100644
--- a/frontend/src/locale/zh-TW.json
+++ b/frontend/src/locale/zh-TW.json
@@ -80,7 +80,7 @@
       "remote": "遠端",
       "name": "名稱",
       "choose": "選擇檔案",
-      "info": "請上傳 .pdf, .txt, .rst, .docx, .md, .json, .zip 檔案，大小限制為 25MB",
+      "info": "請上傳 .pdf, .txt, .rst, .docx, .md, .json, .pptx, .zip 檔案，大小限制為 25MB",
       "uploadedFiles": "已上傳的檔案",
       "cancel": "取消",
       "train": "訓練",
diff --git a/frontend/src/locale/zh.json b/frontend/src/locale/zh.json
index 710c5e3e..51f8bfe9 100644
--- a/frontend/src/locale/zh.json
+++ b/frontend/src/locale/zh.json
@@ -86,7 +86,7 @@
       "start": "开始聊天",
       "name": "名称",
       "choose": "选择文件",
-      "info": "请上传 .pdf, .txt, .rst, .csv, .xlsx, .docx, .md, .html, .epub, .json, .zip 文件，限 25MB",
+      "info": "请上传 .pdf, .txt, .rst, .csv, .xlsx, .docx, .md, .html, .epub, .json, .pptx, .zip 文件，限 25MB",
       "uploadedFiles": "已上传文件",
       "cancel": "取消",
       "train": "训练",
diff --git a/frontend/src/upload/Upload.tsx b/frontend/src/upload/Upload.tsx
index 2da284c3..81ce9f2b 100644
--- a/frontend/src/upload/Upload.tsx
+++ b/frontend/src/upload/Upload.tsx
@@ -321,6 +321,8 @@ function Upload({
       'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet': [
         '.xlsx',
       ],
+      'application/vnd.openxmlformats-officedocument.presentationml.presentation':
+        ['.pptx'],
     },
   });
 
diff --git a/lexeu-competition.md b/lexeu-competition.md
index 1077de29..e8824438 100644
--- a/lexeu-competition.md
+++ b/lexeu-competition.md
@@ -12,8 +12,8 @@ Welcome to the LLM Document Analysis by [LexEU](https://www.lexeu.ai/) competiti
 
 ### 📆 Timeline:
 - **Competition Announcement:** 1st October
-- **Deadline for Submissions:** 27th October
-- **Results Announcement:** Early November/ Late October
+- **Deadline for Submissions:** 8th November
+- **Results Announcement:** Early November
 
 ## 📜 How to Participate:
 
diff --git a/run-with-docker-compose.sh b/run-with-docker-compose.sh
index 61aab467..145b1e23 100755
--- a/run-with-docker-compose.sh
+++ b/run-with-docker-compose.sh
@@ -4,8 +4,8 @@ source .env
 
 if [[ -n "$OPENAI_API_BASE" ]] && [[ -n "$OPENAI_API_VERSION" ]] && [[ -n "$AZURE_DEPLOYMENT_NAME" ]] && [[ -n "$AZURE_EMBEDDINGS_DEPLOYMENT_NAME" ]]; then
   echo "Running Azure Configuration"
-  docker compose -f docker-compose-azure.yaml build && docker compose -f docker-compose-azure.yaml up
+  docker compose -f docker-compose-azure.yaml up --build
 else
   echo "Running Plain Configuration"
-  docker compose build && docker compose up
+  docker compose up --build
 fi