diff --git a/CHANGELOG.md b/CHANGELOG.md
index 69a8766..3012d74 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,34 @@ 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).
 
+## [0.8.5] - 2026-03-13
+
+### Added
+
+- **Model Aliases**: Introduced `MODEL_ALIASES` to support devices whose `PRODUCT_CODE` differs from the model ID used in data keys and mappings
+  - Replaces the former hardcoded workaround for `PDHC1H1HAR1V1`
+  - New device supported: **SEKO POOLDOSE pH+ORP CF Group Wi-Fi** (`PDPR1H1HAW102`, FW `539187`) — resolves to `PDPR1H1HAW100` mapping
+- **New Device Mapping**: Added `model_PDPH1H1HAW100_FW539176.json` for pH-only devices
+  - New device supported: **SEKO PoolDose pH** (`PDPH1H1HAW100`, FW `539176`)
+- **Extended Mapping**: `model_PDPR1H1HAW100_FW539187.json` extended from 32 to 54 entities
+  - 11 new binary sensor alarms (secondary overfeed, temperature, pH/chlorine concentration, system standby)
+  - 6 new sensors with conversions (circulation pump, CL dosing mode, device config, temperature unit, delay statuses)
+  - 5 new number entities (dosing off-timers, delay timers)
+
+### Fixed
+
+- **Session Consistency**: All functions in `RequestHandler` now use the shared `_get_session()` method, enabling correct session hand-over from Home Assistant
+- **Response Parsing**: Fixed double-read bug in `get_access_point()`
+
+### Enhanced
+
+- **Test Coverage**: Added tests for alias resolution, session consistency, and access point parsing
+- **Code Quality**: All tests pass (143 total), pylint score 10.00/10
+
+### Contributors
+
+Thanks to [@ronaldvdmeer](https://github.com/ronaldvdmeer) and [@pwntester](https://github.com/pwntester) for their contributions to this release.
+
 ## [0.8.2] - 2026-01-12
 
 ### Changed
diff --git a/README.md b/README.md
index 0674d42..2a388cc 100644
--- a/README.md
+++ b/README.md
@@ -883,9 +883,13 @@ The `instant_values_structured()` method returns data organized by type:
 
 This client has been tested with:
 
-- **SEKO PoolDose Double** (Model: PDPR1H1HAW100, FW: 539187)
-- **VÁGNER POOL VA DOS BASIC** (Model: PDHC1H1HAR1V0, FW: 539224)
-- **VÁGNER POOL VA DOS EXACT** (Model: PDHC1H1HAR1V1, FW: 539224)
+| Device | PRODUCT_CODE | FW Code | Notes |
+|---|---|---|---|
+| SEKO PoolDose Double | PDPR1H1HAW100 | 539187 | Extended mapping (54 entities) |
+| SEKO POOLDOSE pH+ORP CF Group Wi-Fi | PDPR1H1HAW102 | 539187 | Alias for PDPR1H1HAW100 mapping |
+| SEKO PoolDose pH | PDPH1H1HAW100 | 539176 | pH-only device |
+| VÁGNER POOL VA DOS BASIC | PDHC1H1HAR1V0 | 539224 | |
+| VÁGNER POOL VA DOS EXACT | PDHC1H1HAR1V1 | 539224 | Alias for PDHC1H1HAR1V0 mapping |
 
 Other SEKO or VÁGNER POOL models may work but are untested. The client uses JSON mapping files to adapt to different device models and firmware versions (see e.g. `src/pooldose/mappings/model_PDPR1H1HAW100_FW539187.json`).
 
@@ -967,6 +971,9 @@ Data Classification:
 
 For detailed release notes and version history, please see [CHANGELOG.md](CHANGELOG.md).
 
-### Latest Release (0.8.2)
+### Latest Release (0.8.5)
 
-- **Type Constants**: centralized runtime constants for platform types
+- Added support for **SEKO POOLDOSE pH+ORP CF Group Wi-Fi** (`PDPR1H1HAW102`) and **SEKO PoolDose pH** (`PDPH1H1HAW100`) devices
+- Extended `PDPR1H1HAW100` mapping from 32 to 54 entities
+- Improved session consistency in `RequestHandler`
+- Thanks to [@ronaldvdmeer](https://github.com/ronaldvdmeer) and [@pwntester](https://github.com/pwntester)
diff --git a/src/pooldose/__init__.py b/src/pooldose/__init__.py
index 27c6d6b..225016f 100644
--- a/src/pooldose/__init__.py
+++ b/src/pooldose/__init__.py
@@ -1,5 +1,5 @@
 """Async API client for SEKO Pooldose."""
 from .client import PooldoseClient
 
-__version__ = "0.8.2"
+__version__ = "0.8.5"
 __all__ = ["PooldoseClient"]
diff --git a/tests/test_request_handler.py b/tests/test_request_handler.py
index 04a8748..89d40b9 100644
--- a/tests/test_request_handler.py
+++ b/tests/test_request_handler.py
@@ -312,7 +312,7 @@ async def test_get_device_language_closes_internal_session(self):
             async_cm.__aenter__.return_value = mock_response
             mock_session.post = MagicMock(return_value=async_cm)
 
-            status, data = await handler.get_device_language("TEST_DEVICE")
+            status, _ = await handler.get_device_language("TEST_DEVICE")
 
             assert status == RequestStatus.SUCCESS
             mock_session.close.assert_awaited_once()