chore: Bump version to 0.7.0 and update changelog

Document the changes shipped since 0.2.0: the X-WS-* header
detection fix (0.5.0), the custom POP3 implementation (0.6.0) and
the dependency and toolchain upgrades (0.7.0). Retitle the 0.2.0
entry to 0.3.0 to match the version actually released in
Cargo.toml.

CHANGELOG.md

@@ -5,7 +5,45 @@ 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).
 
-## [0.2.0] - 2025-12-04
+## [0.7.0] - 2026-08-28
+
+### Changed
+
+- Upgraded dependencies: clap 4.6.6, imap 3.0.0-alpha.15, native-tls 0.2.18
+- Migrated IMAP client to the imap 3.x `ClientBuilder` and `AppendCmd` APIs
+- Docker images are now tagged with the crate version on main and the short commit SHA otherwise
+- Upgraded build toolchain to Rust 1.98 (pinned via `rust-toolchain.toml`)
+- Updated Docker images: builder `rust:1.98-trixie`, runtime Debian trixie with `libssl3t64`
+
+### Removed
+
+- Unused `imap-proto` dependency
+- Unsound `lexical-core 0.7.6` dependency chain (RUSTSEC-2023-0086), `cargo audit` is now clean
+
+## [0.6.0] - 2025-12-12
+
+### Changed
+
+- Replaced the third-party `rust-pop3-client` crate with a custom POP3 implementation
+- POP3 messages are now retrieved as raw bytes over native-tls, without encoding or line ending conversions
+- Reduced dependency footprint by dropping `rust-pop3-client`
+
+### Fixed
+
+- POP3 byte-stuffing (doubled leading dots) is now handled correctly
+- Original email byte structure is preserved during retrieval
+
+## [0.5.0] - 2025-12-10
+
+### Fixed
+
+- `X-WS-*` headers (e.g. `X-WS-Attachment-UUID`) are now detected as MIME headers so adjacent attachment headers (`Content-Type`, `Content-Disposition`) get normalized properly
+
+### Added
+
+- Test case for attachment header normalization
+
+## [0.3.0] - 2025-12-04
 
 ### Added
 

Cargo.lock

@@ -501,7 +501,7 @@ checksum = "d6f6ff9a378485b298a5286656da665ba74413d36db0979633275d2e708145d4"
 
 [[package]]
 name = "rs_pop_imap_importer"
-version = "0.6.0"
+version = "0.7.0"
 dependencies = [
  "clap",
  "dotenvy",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rs_pop_imap_importer"
-version = "0.6.0"
+version = "0.7.0"
 edition = "2024"
 
 [lib]