Deprecation of BField and related methods.

CHANGELOG.md

@@ -5,13 +5,27 @@ 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).
 
-## [0.3.0] - unreleased
+## [0.3.0] - 2025.xx.xx
+
+Alot of breaking changes. Biggest things:
+
+* Introduced `Field` struct to be used instead of `modbus.BField`. `BField` and fluent interface is deprecated. When
+  adding fields in bulk and dynamically the struct (more idiomatic) approach is more ergonomic than fluent API.
+* Added implementation of Poller in `poller` package. For example usage
+  see [cmd/modbus-poller/main.go](cmd/modbus-poller/main.go)
 
 Breaking changes to following structs/methods/functions
 
 * struct field `modbus.Field.RegisterAddress` was renamed to `Address`
 * struct `modbus.RegisterRequest` was renamed to `BuilderRequest`
 * method `BuilderRequest.ExtractFields()` signature changed
+* removed type `packet.LooksLikeType` and related consts
+    * const `packet.DataTooShort`
+    * const `packet.IsNotTPCPacket`
+    * const `packet.LooksLikeTCPPacket`
+    * const `packet.UnsupportedFunctionCode`
+* error `modbus.ErrClientNotConnected`: changed from `ClientError` to `*ClientError`
+* error `modbus.ErrPacketTooLong`: changed from `ClientError` to `*ClientError`
 
 ### Added
 
@@ -22,8 +36,7 @@ Breaking changes to following structs/methods/functions
     * `ReadDiscreteInputsTCP` combines fields into TCP Read Discrete Inputs (FC2) requests
     * `ReadDiscreteInputsRTU` combines fields into RTU Read Discrete Inputs (FC2) requests
 
-
-## [0.2.0] - unreleased
+## [0.2.0] - 2024.02.04
 
 ### Added