add changelog

Author: simontreanor

CHANGELOG.md

@@ -0,0 +1,27 @@
+# FSharp.Finance.Personal
+
+# Changelog
+
+## [Unreleased]
+
+- Planned: Add payment mapping to match scheduled and actual payments
+
+---
+
+## [2.5.1] - 2025-05-27
+
+### Migration Guide
+
+- `UnitPeriod.Single` is no longer a valid config
+- `RegularSchedule` is now `AutoGenerateSchedule`, and the `ScheduleLength` is either a payment count or a maximum length, but not both
+- The `Simple` interest method is now `Actuarial`
+- `Parameters` has been split into `Basic` and `Advanced`, with only Basic required for basic schedules but both required for full amortisation schedules
+- Schedules are now represented as maps with the offset day as the key
+- There is now `PaymentQuote.Apportionment` giving a full breakdown of charges, interest, fees and principal
+- HTML output is now handled much better, with the option to provide a description for the output, and column visibility is now automatic
+
+---
+
+## [1.3.5] - 2024-09-18
+
+- This version is the final 1.x.x release.