185 update changelog with previous changes

Author: dmitriyeff

CHANGELOG.md

@@ -5,16 +5,36 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+[8.1.6](https://github.com/pipedrive/client-php/compare/8.1.5...8.1.6) (2025-03-31)
+
 ### Changed
 - Updated `item_price` field data type in products from integer -> number for products and deal products
+
 ### Fixed
 - Added missing `partnership` value for user access apps list
+
 ### Added
 - Added `GET /v2/deals/installments` endpoint to fetch all installments added to a list of deals with cursor pagination
 - Added `POST /v2/deals/{id}/installments` endpoint to add an installment to a deal
 - Added `PATCH /v2/deals/{id}/installments/{installment_id}` endpoint to edit an installment
 - Added `DELETE /v2/deals/{id}/installments/{installment_id}` endpoint to delete an installment
 
+### Added
+- Notice informing the users of the upcoming Subscriptions API deprecation:
+  - `GET /v1/subscriptions/{id}`
+  - `GET /v1/subscriptions/find/{dealId}`
+  - `GET /v1/subscriptions/{id}/payments`
+  - `POST /v1/subscriptions/recurring`
+  - `POST /v1/subscriptions/installment`
+  - `PUT /v1/subscriptions/recurring/{id}`
+  - `PUT /v1/subscriptions/installment/{id}`
+  - `PUT /v1/subscriptions/recurring/{id}/cancel`
+  - `DELETE /v1/subscriptions/{id}`
+
+### Changed
+- Updated Webhooks endpoints to v2, including available event_action and event_object properties
+
 [8.1.5](https://github.com/pipedrive/client-php/compare/8.1.4...8.1.5) (2025-03-17)
 
 ### Added