diff --git a/scripts/Dockerfile b/scripts/Dockerfile
index 317acca..f3ec5bc 100644
--- a/scripts/Dockerfile
+++ b/scripts/Dockerfile
@@ -15,14 +15,14 @@ RUN apk add --no-cache --virtual .build-tools git g++ build-base linux-headers c
     cc -c -O3 -o duk_module_node.o -I. ../extras/module-node/duk_module_node.c && \
     ar cr libduktape.a duktape.o && \
     ar cr libduktape_module.a duk_module_node.o && \
-    install -m0644 *.a /usr/lib && \
+    install -m0644 ./*.a /usr/lib && \
     install -m0644 duk*.h /usr/include && \
     install -m0644 ../extras/module-node/duk_module_node.h /usr/include && \
     cd ../../../.. && \
     rm -rf duktape /usr/lib/python2.7 && \
     git clone https://github.com/tindy2013/subconverter --depth=1 && \
     cd subconverter && \
-    cmake . && \
+    cmake -DCMAKE_BUILD_TYPE=Release . && \
     make -j4 && \
     mv subconverter base/ && \
     mv base ../ && \
diff --git a/scripts/build.alpine.release.sh b/scripts/build.alpine.release.sh
index 8bdcc83..875c617 100644
--- a/scripts/build.alpine.release.sh
+++ b/scripts/build.alpine.release.sh
@@ -33,7 +33,7 @@ install -m0644 ../extras/module-node/duk_module_node.h /usr/include
 cd ../../../..
 
 export PKG_CONFIG_PATH=/usr/lib64/pkgconfig
-cmake .
+cmake -DCMAKE_BUILD_TYPE=Release .
 make -j2
 rm subconverter
 g++ -o base/subconverter $(find CMakeFiles/subconverter.dir/src/ -name "*.o")  -static -lpcre2-8 -levent -lyaml-cpp -L/usr/lib64 -lcurl -lmbedtls -lmbedcrypto -lmbedx509 -lz -lduktape -lduktape_module -O3 -s  
diff --git a/scripts/build.macos.release.sh b/scripts/build.macos.release.sh
index c05bc59..06f0e6e 100644
--- a/scripts/build.macos.release.sh
+++ b/scripts/build.macos.release.sh
@@ -32,14 +32,11 @@ install -m0644 ./duk*.h /usr/local/include
 install -m0644 ../extras/module-node/duk_module_node.h /usr/local/include
 cd ../../../..
 
-cp curl/lib/libcurl.a .
-cp yaml-cpp/libyaml-cpp.a .
-cp duktape/dist/source/src/*.a .
 cp /usr/local/lib/libevent.a .
 cp /usr/local/opt/zlib/lib/libz.a .
 cp /usr/local/lib/libpcre2-8.a .
 
-cmake .
+cmake -DCMAKE_BUILD_TYPE=Release .
 make -j8
 rm subconverter
 c++ -Xlinker -unexported_symbol -Xlinker "*" -o base/subconverter -framework CoreFoundation -framework Security $(find CMakeFiles/subconverter.dir/src/ -name "*.o") $(find . -name "*.a") -O3
diff --git a/src/ini_reader.h b/src/ini_reader.h
index b37b3c6..df7b019 100644
--- a/src/ini_reader.h
+++ b/src/ini_reader.h
@@ -38,7 +38,7 @@ private:
     std::string current_section;
     ini_data_struct ini_content;
     string_array exclude_sections, include_sections, direct_save_sections;
-    string_array read_sections, section_order;
+    string_array section_order;
 
     std::string cached_section;
     ini_data_struct::iterator cached_section_content;
@@ -113,7 +113,7 @@ public:
     bool allow_dup_section_titles = false;
 
     /**
-    *  @brief Keep an empty section while parsing
+    *  @brief Keep an empty section while parsing.
     */
     bool keep_empty_section = true;
 
@@ -145,7 +145,6 @@ public:
         current_section = src.current_section;
         exclude_sections = src.exclude_sections;
         include_sections = src.include_sections;
-        read_sections = src.read_sections;
         section_order = src.section_order;
         isolated_items_section = src.isolated_items_section;
         //copy preferences
@@ -153,6 +152,7 @@ public:
         store_any_line = src.store_any_line;
         store_isolated_line = src.store_isolated_line;
         allow_dup_section_titles = src.allow_dup_section_titles;
+        keep_empty_section = src.keep_empty_section;
         return *this;
     }
 
@@ -215,6 +215,7 @@ public:
         bool inExcludedSection = false, inDirectSaveSection = false;
         std::string strLine, thisSection, curSection, itemName, itemVal;
         string_multimap itemGroup, existItemGroup;
+        string_array read_sections;
         std::stringstream strStrm;
         char delimiter = getLineBreak(content);
 
@@ -805,6 +806,9 @@ public:
         return current_section.size() ? SetArray(current_section, itemName, separator, Array) : -1;
     }
 
+    /**
+    *  @brief Rename an existing section.
+    */
     int RenameSection(const std::string &oldName, const std::string &newName)
     {
         if(!SectionExist(oldName) || SectionExist(newName))
@@ -880,7 +884,6 @@ public:
             cached_section_content = ini_content.end();
             cached_section.erase();
         }
-        //section_order.erase(std::find(section_order.begin(), section_order.end(), section));
     }
 
     /**
@@ -892,6 +895,31 @@ public:
             EraseSection(current_section);
     }
 
+    /**
+    *  @brief Remove a section from INI.
+    */
+    void RemoveSection(const std::string &section)
+    {
+        if(ini_content.find(section) == ini_content.end())
+            return;
+        ini_content.erase(section);
+        if(cached_section == section)
+        {
+            cached_section.clear();
+            cached_section_content = ini_content.end();
+        }
+        section_order.erase(std::find(section_order.begin(), section_order.end(), section));
+    }
+
+    /**
+    *  @brief Remove current section from INI.
+    */
+    void RemoveSection()
+    {
+        if(current_section.size())
+            RemoveSection(current_section);
+    }
+
     /**
     *  @brief Export the whole INI data structure into a string.
     */