Bump version to 0.27.3

CHANGELOG.md

@@ -4,6 +4,21 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
+## [0.27.3] - 2026-09-29
+### Added
+- The checkout confirmation page now ends with the store's bank transfer
+  instructions (Store Details → Bank transfer) for a bank transfer order,
+  via `StoreDetailsService::bankTransferInstructionsFor()`. New translation
+  line `checkout.page.confirmation_bank_transfer_heading` — re-run
+  `CheckoutTranslationsSeeder` in consuming apps to add it.
+
+### Fixed
+- `StoreDetailsService::bankTransferInstructionsFor()` now fills a
+  `{order_reference}` (or `{{ order_reference }}`) typed into the bank
+  transfer instructions with the order's display reference
+  (`OrderReferenceDisplay`). It previously rendered literally in the order
+  confirmation email.
+
 ## [0.27.2] - 2026-09-29
 ### Fixed
 - `Modules\Core\Order\Services\TransactionRecorder::record()` — made idempotent