Add draft release notes for v0.4.0

docs/release-notes-archive/2025.md

@@ -1,3 +1,47 @@
+**libmutton v0.4.0**
+DRAFT
+
+This is the largest update to libmutton yet, and as such, these patch notes are non-exhaustive.
+Many minor changes and fixes to features mentioned in these patch notes have been made.
+Please see the commit history for a more complete list of changes.
+
+## Breaking (for users)
+- GPG has been entirely replaced with [RCW](https://github.com/rwinkhart/rcw)
+    - All entries created in previous versions must be converted using [this conversion program](https://github.com/rwinkhart/sshyp-labs/releases/tag/v2.0.0)
+- Steam TOTP keys now must be in base32 format
+- (3c5db78da9861e09112ac308c086c2d19f2abfeb) Release binaries of `libmuttonserver` now target x86_64_v2 and arm64v8.7
+- (3dd07e7165874e323586c21a14853935bb3dc61c) Offline mode is now manually specified in libmutton.ini
+
+## Breaking (for developers)
+- libmutton has been further modularized
+    - The `core` package has been split into `core`, `global`, `crypt`, and `cfg`
+    - The `sync` package has been split into `syncclient`, `syncserver`, `synccommon`, and `synccycles`
+    - This decreases the size of the server binary and allows for more modular clients
+- (40f0f35f452008997bb5ecfb72f496646c42ba06) Errors are now returned, rather than printed
+
+## Features
+- (111324cc25e84a5bd8b6b8206b90b00394311590) Deletions (server-side) now follow the client through device ID changes
+- (ca277ba7735dd75cc94b26c1c2357f7d3192e26b) Added the `EntryRefresh()` function for re-encrypting entries with a new passphrase/optimizing bloated entries
+- (74b8261bc88fc122a25df5207b34edc3dee81e9a) Added the `LibmuttonInit()` function to ensure clients initialize libmutton as intended
+
+## Fixes
+- (50ab27c6749d13fc6842d92259f8e0fd8fa5340c) libmutton.ini is now always created with 0600 permissions on *nix platforms
+- (4a0e0f8e9e96805b27232001bce81336ac2e6a4d) Old devices IDs are no longer removed from clients when registration of a new device ID fails
+
+## Dependencies
+- Dropped
+    - github.com/fortis/go-steam-totp (functionality now covered by github.com/pquerna/otp)
+- Bumped (direct)
+    - Go: v1.24.2 => v1.24.4
+    - github.com/pquerna/otp: v1.4.1-0.20231130234153-3357de7c0481 => v1.5.0
+    - golang.design/x/clipboard: v0.7.0 => v0.7.1
+    - golang.org/x/crypto: v0.37.0 => v0.39.0
+- Added (direct)
+    - github.com/rwinkhart/go-boilerplate v0.1.0
+    - github.com/rwinkhart/rcw v0.2.1
+
+---
+
 **libmutton v0.3.1**
 April 21, 2025