dev/0.9.0

CHANGELOG.md

@@ -5,6 +5,37 @@ 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/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.9.0] - 2026-05-13
+
+### Added
+
+- `filter-constant` command to hide highly conserved columns by threshold - ignores gaps and unknown symbols in DNA and protein alignments.
+- `reload-as-protein` command and `Shift+T` shortcut to toggle a full protein-translated alignment view alongside the existing quick translation overlay (`t`).
+- Keyboard shortcuts for translation frame selection: `Alt+1`, `Alt+2`, and `Alt+3`.
+- Experimental GFF3 annotation support via `load-gff`, including:
+  - a global feature minimap
+  - a local feature track above the alignment
+  - hoverable feature details in the `Feature Info` pane
+  - mouse drag panning in the GFF pane
+  - `jump-feature` command to jump to named features from a loaded GFF file
+  - GFF annotations follow the current coordinate mode:
+    - in quick translation they remain in nucleotide space
+    - in reloaded protein mode they are projected into protein columns using the active reading frame
+    - when columns are filtered, features collapse to the remaining visible columns and may disappear entirely if fully filtered out
+
+### Changed
+
+- Translation handling is now split more cleanly between quick overlay translation and full protein reload, with reading frame changes updating both modes correctly.
+- Sequence type detection is now deterministic.
+- Significant under-the-hood performance improvements in `libmsa`, including faster translation.
+- Refactored the UI into panes and layers to simplify, and migrated them so each component implements the ratatui widget trait.
+- Some UI changes to make the interface a bit sleeker - dropping obvious titles in panes etc.
+
+### Fixed
+
+- Mouse selection highlighting in the `terminal-default` theme using background colour making selection unusable.
+- Ruler rendering bugs that could happen with filtered columns and translated views.
+
 ## [0.8.0] - 2026-02-26
 
 ### Added