diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c35066..b74b613 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,17 @@
 
 ## Unreleased
 
+## [1.1.2] - 2026-08-12
+
+### Changed
+
+- 床下空調の入力項目を実際の計算経路に合わせて整理した。`R_g`と`φ`は手動設定を維持し、
+  不易層温度は外気温の年間平均から自動算定、床板熱貫流率は用途別の固定・算定値として
+  説明表示へ変更した。入力ガイドも現行UIと入力仕様`260812`に整合させた。
+- システムCOPグラフへ、年間処理熱量を熱源機・送風機の年間消費電力量で除した年間APFを
+  表示し、暖房APFと冷房APFも併記するようにした。
+- READMEの冒頭に、公開中のCloud Run版を直接開けるリンクと利用上の注意を追加した。
+
 ## [1.1.1] - 2026-08-11
 
 ### Fixed
diff --git a/README.md b/README.md
index aa8b930..9a3df3d 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 ## 公開Web版
 
-**[Verification Platform Next ver.1.1.1をブラウザで開く](https://verification-platform-next-dnoeszca4a-an.a.run.app/)**
+**[Verification Platform Next ver.1.1.2をブラウザで開く](https://verification-platform-next-dnoeszca4a-an.a.run.app/)**
 
 公開Web版では、インストールせずに入力、計算、結果ファイルの取得を行えます。
 計算は1件ずつ処理するため、混雑時は画面に表示される順番をお待ちください。
@@ -12,7 +12,7 @@
 データはアップロードしないでください。
 
 住宅の省エネルギー性能を検証するための計算エンジン、入力スキーマ、Gradio UIを
-まとめたPythonモノレポです。正式版は **ver.1.1.1** です。
+まとめたPythonモノレポです。正式版は **ver.1.1.2** です。
 
 本リポジトリは、建築研究所が公開する住宅のエネルギー消費性能計算プログラム
 `pyhees`を基礎とし、検証用の入力画面、床下空調などの拡張計算、数値回帰試験を
diff --git a/apps/gradio/pyproject.toml b/apps/gradio/pyproject.toml
index 424d708..f10a222 100644
--- a/apps/gradio/pyproject.toml
+++ b/apps/gradio/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "verification-platform-app"
-version = "1.1.1"
+version = "1.1.2"
 description = "Gradio application for Verification Platform"
 authors = ["iguchi-lab"]
 packages = [{ include = "verification_app", from = "src" }]
diff --git a/docs/RELEASING.md b/docs/RELEASING.md
index 001bd01..86b9bf4 100644
--- a/docs/RELEASING.md
+++ b/docs/RELEASING.md
@@ -5,17 +5,17 @@
 Verification Platform Nextは、製品全体を1つの
 [Semantic Versioning](https://semver.org/) で管理します。
 
-- Pythonパッケージ版: `1.1.1`
-- 表示名: `ver.1.1.1`
-- Gitタグ: `v1.1.1`
-- 成果物接尾辞: `_v1.1.1`
+- Pythonパッケージ版: `1.1.2`
+- 表示名: `ver.1.1.2`
+- Gitタグ: `v1.1.2`
+- 成果物接尾辞: `_v1.1.2`
 
 製品版の正本は
 `packages/pyhees-jjj/src/jjjexperiment/release.py`です。ルート、
 `verification-core`、Gradioアプリ、`pyhees-jjj`の各`pyproject.toml`は
 同じ版にそろえ、契約テストで不一致を検出します。
 
-日付は版番号として使いません。パッチ修正は`1.1.1`、後方互換な機能追加は
+日付は版番号として使いません。パッチ修正は`1.1.2`、後方互換な機能追加は
 `1.2.0`、互換性を破る変更は`2.0.0`とします。
 
 ## 計算成果物の追跡
@@ -23,10 +23,10 @@ Verification Platform Nextは、製品全体を1つの
 成果物名には安定した版接尾辞を付けます。
 
 ```text
-<case_name>_v1.1.1_input.json
-<case_name>_v1.1.1_output1.csv
-<case_name>_v1.1.1_output2.csv
-<case_name>_v1.1.1_manifest.json
+<case_name>_v1.1.2_input.json
+<case_name>_v1.1.2_output1.csv
+<case_name>_v1.1.2_output2.csv
+<case_name>_v1.1.2_manifest.json
 ```
 
 計算が正常終了すると、マニフェストへ次を記録します。
@@ -67,9 +67,9 @@ GitHub Actionsがすべて成功した後、PRをマージし、マージコミ
 ```bash
 git switch main
 git pull --ff-only
-git tag -a v1.1.1 -m "Verification Platform Next ver.1.1.1"
-git push origin v1.1.1
-gh release create v1.1.1 --title "Verification Platform Next ver.1.1.1"
+git tag -a v1.1.2 -m "Verification Platform Next ver.1.1.2"
+git push origin v1.1.2
+gh release create v1.1.2 --title "Verification Platform Next ver.1.1.2"
 ```
 
 GitHub Releaseには`CHANGELOG.md`の該当版、試験結果、既知の制約を記載します。
diff --git a/docs/calculation_differences.md b/docs/calculation_differences.md
index 0d14851..94b1c9f 100644
--- a/docs/calculation_differences.md
+++ b/docs/calculation_differences.md
@@ -20,7 +20,7 @@ Verification Platform Nextは、建築研究所等の技術的協力のもと公
 | --- | --- |
 | 建研本家 | `BRI-EES-House/pyhees` Ver.3.10、commit `d5224c4a01def00a8421bcd2fcc0d4b4a5b88644` |
 | 旧Verification Platform | Next移行時の基準commit `0f91ba8381df1b4960557b92b39339385cc9009f` |
-| Verification Platform Next | ver.1.1.1、入力仕様 `260812` |
+| Verification Platform Next | ver.1.1.2、入力仕様 `260812` |
 
 建研本家の版は[`packages/pyhees-jjj/UPSTREAM.md`](../packages/pyhees-jjj/UPSTREAM.md)、
 Nextの製品版は[`jjjexperiment/release.py`](../packages/pyhees-jjj/src/jjjexperiment/release.py)
diff --git a/packages/pyhees-jjj/UPSTREAM.md b/packages/pyhees-jjj/UPSTREAM.md
index eee5113..de5a313 100644
--- a/packages/pyhees-jjj/UPSTREAM.md
+++ b/packages/pyhees-jjj/UPSTREAM.md
@@ -16,7 +16,7 @@
 - upstream commit: `d5224c4a01def00a8421bcd2fcc0d4b4a5b88644`
 - previous upstream commit: `2de59208427e719edacfeffaa47d46e964c4fc63`（Ver.3.9相当）
 - imported fork commit: `0f91ba8381df1b4960557b92b39339385cc9009f`
-- engine version: `_v1.1.1`
+- engine version: `_v1.1.2`
 - legacy form version: `260715`
 
 この値は `regression/phase5/manifest.json` と一致させます。
diff --git a/packages/pyhees-jjj/pyproject.toml b/packages/pyhees-jjj/pyproject.toml
index 396d0d1..7db28e2 100644
--- a/packages/pyhees-jjj/pyproject.toml
+++ b/packages/pyhees-jjj/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "pyhees-jjj"
-version = "1.1.1"
+version = "1.1.2"
 description = "Pyheesの検証用のフォークプロジェクトです"
 homepage = "https://github.com/izumi-system-development/pyhees-jjj"
 authors = ["Pyhees Development Team"]
diff --git a/packages/pyhees-jjj/src/jjjexperiment/release.py b/packages/pyhees-jjj/src/jjjexperiment/release.py
index 652693f..3d98730 100644
--- a/packages/pyhees-jjj/src/jjjexperiment/release.py
+++ b/packages/pyhees-jjj/src/jjjexperiment/release.py
@@ -11,10 +11,10 @@
 from typing import Any, Mapping
 
 
-VERSION = "1.1.1"
-DISPLAY_VERSION = "ver.1.1.1"
-RELEASE_DATE = "2026-08-11"
-ARTIFACT_VERSION = "_v1.1.1"
+VERSION = "1.1.2"
+DISPLAY_VERSION = "ver.1.1.2"
+RELEASE_DATE = "2026-08-12"
+ARTIFACT_VERSION = "_v1.1.2"
 
 UPSTREAM_PYHEES_VERSION = "3.10.0"
 UPSTREAM_PYHEES_COMMIT = "d5224c4a01def00a8421bcd2fcc0d4b4a5b88644"
diff --git a/packages/pyhees-jjj/src/tests/test_release.py b/packages/pyhees-jjj/src/tests/test_release.py
index e31e66b..15bc5a1 100644
--- a/packages/pyhees-jjj/src/tests/test_release.py
+++ b/packages/pyhees-jjj/src/tests/test_release.py
@@ -22,7 +22,7 @@ def test_source_commit_prefers_deployment_metadata(monkeypatch):
 def test_write_artifact_manifest_records_release_and_input(tmp_path, monkeypatch):
     monkeypatch.setenv("VERIFICATION_SOURCE_COMMIT", "0123456789abcdef")
     input_data = {"case_name": "case", "region": 6}
-    path = tmp_path / "case_v1.1.1_manifest.json"
+    path = tmp_path / "case_v1.1.2_manifest.json"
 
     release.write_artifact_manifest(path, input_data)
 
@@ -30,10 +30,10 @@ def test_write_artifact_manifest_records_release_and_input(tmp_path, monkeypatch
     assert manifest == {
         "schema_version": 1,
         "product": "Verification Platform Next",
-        "version": "1.1.1",
-        "display_version": "ver.1.1.1",
-        "release_date": "2026-08-11",
-        "artifact_version": "_v1.1.1",
+        "version": "1.1.2",
+        "display_version": "ver.1.1.2",
+        "release_date": "2026-08-12",
+        "artifact_version": "_v1.1.2",
         "source_commit": "0123456789abcdef",
         "upstream_pyhees_version": "3.10.0",
         "upstream_pyhees_commit": "d5224c4a01def00a8421bcd2fcc0d4b4a5b88644",
@@ -82,7 +82,7 @@ def test_calc_writes_manifest_only_after_success(tmp_path, monkeypatch):
 
     assert actual is result
     assert json.loads(
-        (tmp_path / "release-case_v1.1.1_input.json").read_text(encoding="utf-8")
+        (tmp_path / "release-case_v1.1.2_input.json").read_text(encoding="utf-8")
     ) == input_data
     assert events == [
         ("constants", input_data),
@@ -90,7 +90,7 @@ def test_calc_writes_manifest_only_after_success(tmp_path, monkeypatch):
         ("calculate", experiment_main.calc_main),
         (
             "manifest",
-            Path("release-case_v1.1.1_manifest.json"),
+            Path("release-case_v1.1.2_manifest.json"),
             input_data,
         ),
     ]
diff --git a/packages/verification-core/pyproject.toml b/packages/verification-core/pyproject.toml
index 160f73f..d05fd8c 100644
--- a/packages/verification-core/pyproject.toml
+++ b/packages/verification-core/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "verification-core"
-version = "1.1.1"
+version = "1.1.2"
 description = "Canonical input schema and shared contracts for Verification Platform"
 authors = ["iguchi-lab"]
 packages = [{ include = "verification_core", from = "src" }]
diff --git a/pyproject.toml b/pyproject.toml
index 5394831..ad5ccce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "verification-platform-next"
-version = "1.1.1"
+version = "1.1.2"
 description = "Monorepo for the Verification Platform engine, schema, and UI"
 authors = ["iguchi-lab"]
 package-mode = false
diff --git a/regression/phase5/manifest.json b/regression/phase5/manifest.json
index a39613b..c8aa592 100644
--- a/regression/phase5/manifest.json
+++ b/regression/phase5/manifest.json
@@ -2,7 +2,7 @@
   "schema_version": 1,
   "legacy_form_version": "260715",
   "engine_commit": "d5224c4a01def00a8421bcd2fcc0d4b4a5b88644",
-  "engine_version": "_v1.1.1",
+  "engine_version": "_v1.1.2",
   "tolerances": {
     "relative": 1e-09,
     "absolute": 1e-08
diff --git a/tests/test_gradio_app.py b/tests/test_gradio_app.py
index 496ded4..ff6b7cb 100644
--- a/tests/test_gradio_app.py
+++ b/tests/test_gradio_app.py
@@ -62,7 +62,7 @@ def equipment_section(prefix: str) -> dict[str, object]:
         )
 
     assert gradio.__version__.startswith("6.")
-    assert config["title"] == "Verification Platform Next ver.1.1.1"
+    assert config["title"] == "Verification Platform Next ver.1.1.2"
     assert component_types["accordion"] == 16
     assert component_types["number"] == 156
     assert component_types["dropdown"] == 54
diff --git a/tests/test_release_version.py b/tests/test_release_version.py
index 47d8a5d..04b6572 100644
--- a/tests/test_release_version.py
+++ b/tests/test_release_version.py
@@ -13,9 +13,9 @@ def _project_version(path: str) -> str:
 
 
 def test_release_version_is_consistent_across_projects():
-    assert release.VERSION == "1.1.1"
-    assert release.DISPLAY_VERSION == "ver.1.1.1"
-    assert release.ARTIFACT_VERSION == "_v1.1.1"
+    assert release.VERSION == "1.1.2"
+    assert release.DISPLAY_VERSION == "ver.1.1.2"
+    assert release.ARTIFACT_VERSION == "_v1.1.2"
     assert {
         _project_version("pyproject.toml"),
         _project_version("packages/verification-core/pyproject.toml"),