diff --git a/.gitattributes b/.gitattributes
index 8e09d16..c247dfd 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,8 +1,8 @@
 # Distribution files for git archive (release ZIP)
 # This file controls what is excluded from git archive.
 
-# Note: For WordPress.org submission, source CSS/JS files are included
-# (minified assets are provided by the GitHub release workflow only)
+# Note: Source CSS/JS files are excluded from release ZIP
+# (only minified assets are included)
 
 # Exclude development and build files
 composer.json export-ignore
@@ -12,6 +12,11 @@ node_modules/ export-ignore
 package.json export-ignore
 package-lock.json export-ignore
 
+# Exclude source JS/CSS files (only minified assets in release)
+assets/js/*.js export-ignore
+assets/js/**/*.js export-ignore
+assets/css/*.css export-ignore
+
 # Exclude development configuration
 phpcs.xml export-ignore
 phpcs.xml.dist export-ignore
diff --git a/AGENT.md b/AGENT.md
index 23d2de6..32d16da 100644
--- a/AGENT.md
+++ b/AGENT.md
@@ -8,7 +8,7 @@
 **FE CSV Import & Export** is a WordPress plugin for CSV import/export.
 Supports custom post types, custom taxonomies, and custom fields.
 
-- **Version**: 1.0.0
+- **Version**: 1.0.1
 - **License**: GPL-2.0+
 - **PHP**: >= 8.1 (recommended)
 - **Repository**: https://github.com/firstelementjp/fe-csv-import-export
diff --git a/README.md b/README.md
index f4875f1..b46e5eb 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 ![FE CSV Import & Export Banner](https://firstelementjp.github.io/fe-csv-import-export/assets/images/img-sns-banner-80.jpg)
 
-[![Version](https://img.shields.io/badge/version-1.0.0-green.svg)](https://github.com/firstelementjp/fe-csv-import-export/releases)
+[![Version](https://img.shields.io/badge/version-1.0.1-green.svg)](https://github.com/firstelementjp/fe-csv-import-export/releases)
 [![License](https://img.shields.io/badge/License-GPLv2%2B-blue.svg)](https://www.gnu.org/licenses/gpl-2.0.html)
 [![WordPress](https://img.shields.io/badge/WordPress-6.6%2B-blue.svg)](https://wordpress.org/)
 [![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/firstelementjp/fe-csv-import-export)
diff --git a/docs/README.md b/docs/README.md
index 2aa43de..4294f94 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -5,7 +5,7 @@
 > CSV import/export for WordPress with localized admin UI, automatic batch processing, and developer extensibility.
 
 [![License](https://img.shields.io/badge/license-GPL--2.0%2B-blue.svg)](legal.md)
-[![Version](https://img.shields.io/badge/version-1.0.0-green.svg)](https://github.com/firstelementjp/fe-csv-import-export/releases)
+[![Version](https://img.shields.io/badge/version-1.0.1-green.svg)](https://github.com/firstelementjp/fe-csv-import-export/releases)
 [![WordPress](https://img.shields.io/badge/WordPress-6.6%2B-blue.svg)](https://wordpress.org/)
 
 FE CSV Import & Export is a WordPress plugin for importing and exporting post data as CSV from the admin area.
@@ -29,11 +29,11 @@ FE CSV Import & Export is a WordPress plugin for importing and exporting post da
 
 ## 📥 Download
 
-[Download fe-csv-import-export-1.0.zip](https://github.com/firstelementjp/fe-csv-import-export/releases/download/v1.0/fe-csv-import-export-1.0.zip){: .download-btn }
+[Download fe-csv-import-export-1.0.1.zip](https://github.com/firstelementjp/fe-csv-import-export/releases/download/v1.0.1/fe-csv-import-export-1.0.1.zip){: .download-btn }
 
 ## 🚀 Quick Start
 
-1. Download `fe-csv-import-export-1.0.0.zip`
+1. Download `fe-csv-import-export-1.0.1.zip`
 2. Upload and activate the plugin in WordPress
 3. Open **Tools → FE CSV Import & Export**
 4. Run a small test import or export first
diff --git a/docs/changes.md b/docs/changes.md
index 137ae0c..c360160 100644
--- a/docs/changes.md
+++ b/docs/changes.md
@@ -1,5 +1,14 @@
 # 📋 Changelog
 
+## [1.0.1] - 2026-07-09
+
+### 🛠️ Bug Fixes
+
+- **Fixed README banner image accessibility** - Changed banner image URL from GitHub blob to GitHub Pages to ensure visibility for non-logged-in users.
+- **Fixed memory exhaustion on PHP 7.4** - Export batch size calculation now caps batch size more conservatively for PHP 7.x and low-memory environments (≤256MB), preventing memory exhaustion during first export with custom fields.
+
+---
+
 ## [1.0.0] - 2026-06-02
 
 ### 🚀 Performance Improvements
diff --git a/docs/install.md b/docs/install.md
index f0a11dc..72daeeb 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -10,7 +10,7 @@
 
 ## Manual Installation
 
-1. [Download latest version (v1.0.0)](https://github.com/firstelementjp/fe-csv-import-export/releases/download/v1.0.0/fe-csv-import-export-1.0.0.zip)
+1. [Download latest version (v1.0.1)](https://github.com/firstelementjp/fe-csv-import-export/releases/download/v1.0.1/fe-csv-import-export-1.0.1.zip)
 2. Extract the downloaded ZIP file
 3. Upload `fe-csv-import-export` folder to `/wp-content/plugins/`
 4. Navigate to **Plugins** in WordPress admin
diff --git a/docs/ja/changes.md b/docs/ja/changes.md
index 36f2467..565ad15 100644
--- a/docs/ja/changes.md
+++ b/docs/ja/changes.md
@@ -1,5 +1,14 @@
 # 📋 変更履歴
 
+## [1.0.1] - 2026-07-09
+
+### 🛠️ バグ修正
+
+- **READMEバナー画像のアクセシビリティ修正** - GitHubにログインしていないユーザーでも画像が表示されるよう、バナー画像URLをGitHub blobからGitHub Pagesに変更しました
+- **PHP 7.4でのメモリ枯渇修正** - エクスポートバッチサイズ計算をPHP 7.xおよび低メモリ環境（≤256MB）でより保守的に制限するように変更し、カスタムフィールドを含む初回エクスポート時のメモリ枯渇を防止しました
+
+---
+
 ## [0.9.9.4] - 2026-05-27
 
 ### 🚀 パフォーマンス改善
diff --git a/fe-csv-import-export.php b/fe-csv-import-export.php
index 29fd955..f5eb8b7 100644
--- a/fe-csv-import-export.php
+++ b/fe-csv-import-export.php
@@ -3,7 +3,7 @@
  * Plugin Name:  FE CSV Import & Export
  * Plugin URI:   https://github.com/firstelementjp/fe-csv-import-export
  * Description:  Simple yet powerful CSV import/export plugin for WordPress. Supports custom post types, custom taxonomies, and custom fields.
- * Version:      1.0.0
+ * Version:      1.0.1
  * Author:       FirstElement K.K., Daijiro Miyazawa
  * Author URI:   https://www.firstelement.co.jp/
  * License:      GPL-2.0+
@@ -20,7 +20,7 @@
 }
 
 // Define plugin constants.
-define( 'FE_CSV_IMPORT_EXPORT_VERSION', '1.0.0' );
+define( 'FE_CSV_IMPORT_EXPORT_VERSION', '1.0.1' );
 define( 'FE_CSV_IMPORT_EXPORT_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
 define( 'FE_CSV_IMPORT_EXPORT_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
 define( 'FE_CSV_IMPORT_EXPORT_BASENAME', plugin_basename( __FILE__ ) );
diff --git a/includes/import/class-fe-csv-import-export-import-row-processor.php b/includes/import/class-fe-csv-import-export-import-row-processor.php
index 96712d6..c3f2451 100644
--- a/includes/import/class-fe-csv-import-export-import-row-processor.php
+++ b/includes/import/class-fe-csv-import-export-import-row-processor.php
@@ -134,12 +134,12 @@ private function append_error_detail(
 	 * This is a simplified API that avoids injecting the persisting callable.
 	 *
 	 * @since 0.9.0
-	 * @param wpdb                       $wpdb WordPress database handler.
-	 * @param array                      $row_context Row context.
-	 * @param array                      $context Context values for row processing.
-	 * @param array                      $counters Counters (by reference).
+	 * @param wpdb                                  $wpdb WordPress database handler.
+	 * @param array                                 $row_context Row context.
+	 * @param array                                 $context Context values for row processing.
+	 * @param array                                 $counters Counters (by reference).
 	 * @param FE_CSV_Import_Export_Import_Persister $persister Persister utility.
-	 * @param callable                   $handle_successful_row_import Success handler.
+	 * @param callable                              $handle_successful_row_import Success handler.
 	 * @return void
 	 */
 	public function process_row_context_with_persister(
@@ -174,14 +174,14 @@ public function process_row_context_with_persister(
 	 * Process one import row using a persister instance without injecting callables.
 	 *
 	 * @since 0.9.0
-	 * @param wpdb                       $wpdb WordPress database handler.
-	 * @param bool                       $is_update Whether this row updates an existing post.
-	 * @param int|null                   $post_id Post ID (by reference, updated on insert).
-	 * @param array                      $post_fields_from_csv Post fields collected from CSV.
-	 * @param array                      $context Context values for row processing.
-	 * @param array                      $counters Counters (by reference).
+	 * @param wpdb                                  $wpdb WordPress database handler.
+	 * @param bool                                  $is_update Whether this row updates an existing post.
+	 * @param int|null                              $post_id Post ID (by reference, updated on insert).
+	 * @param array                                 $post_fields_from_csv Post fields collected from CSV.
+	 * @param array                                 $context Context values for row processing.
+	 * @param array                                 $counters Counters (by reference).
 	 * @param FE_CSV_Import_Export_Import_Persister $persister Persister utility.
-	 * @param callable                   $handle_successful_row_import Success handler.
+	 * @param callable                              $handle_successful_row_import Success handler.
 	 * @return void
 	 */
 	public function process_single_import_row_with_persister_without_callbacks(
diff --git a/package.json b/package.json
index 4ab9861..9963e7b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "fe-csv-import-export",
-	"version": "1.0.0",
+	"version": "1.0.1",
 	"description": "FE CSV Import & Export - Simple CSV Management Without the Complexity.",
 	"license": "GPL-2.0+",
 	"engines": {
diff --git a/readme.txt b/readme.txt
index 852485e..1f16e2a 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Tags: csv, import, export, custom post types, custom fields
 Requires at least: 6.6
 Tested up to: 7.0
 Requires PHP: 7.4
-Stable tag: 1.0.0
+Stable tag: 1.0.1
 License: GPLv2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html
 
diff --git a/test-release.sh b/test-release.sh
index 1ff7841..6fa1a4c 100755
--- a/test-release.sh
+++ b/test-release.sh
@@ -4,7 +4,7 @@ set -euo pipefail
 
 BRANCH="${1:-$(git rev-parse --abbrev-ref HEAD)}"
 RELEASE_DIR="test-release"
-ZIP_NAME="fe-csv-import-export-1.0.0.zip"
+ZIP_NAME="fe-csv-import-export-1.0.1.zip"
 GENERATED_MINIFIED_FILES=(
 	"assets/css/fe-csv-import-export-style.min.css"
 	"assets/js/export/fe-csv-import-export/ajax.min.js"