v0.3.0

Feature release centered on enzyme supplier data and a new supplier detail dialog, SnapGene history snapshots, and an expanded embedded MCP toolset.

New Features

• SnapGene history snapshots — .dna files expose their history tree via Edit → History; open any snapshot as a new in-memory project carrying that node's complete subtree history plus the features/primers as of that point, and keep opening nested snapshots inside it (history is view-only; Save As stays GenBank)
• Enzyme supplier data & provider filter — imported NEB / BestEnzyme / Thermo provider metadata (buffer compatibility, temperature, methylation, methylation sensitivity); filter the enzyme set by provider in the nav menu, intersected with the Enzyme Set filter
• Enzyme detail dialog — double-click an enzyme label (or a row in the Enzyme Database dialog) to open a detail dialog with the full recognition site, cut positions, overhang, star activity, and a variant switcher showing per-variant supplier data, with collapsible related-enzyme (isoschizomer / neoschizomer) lists
• MCP convert_sequence — the old optimize_cds tool is replaced by a unified batch conversion tool: dna↔rna (T↔U, optional revComp), dna/rna→protein translation, protein→dna/rna reverse translation with codon optimization, and dna→dna codon optimization, with per-item error isolation

Improvements

• SnapGene history dialog renders as a flat vertical timeline, and its entry moved into the Edit menu as History
• Nav menu buttons show a caret affordance on hover
• Supplier field values and enzyme data are fully in English, with star activity reformatted as buffer lists
• Alignment chromatogram bands now cut cleanly at deletions, insertions, and circular-join wraps instead of bridging artifacts — matches/mismatches stay connected, reads render on the row containing the join wrap

Bug Fixes

• Reject crafted SnapGene feature coordinates at parse and export instead of accepting malformed data
• Show the user-entered name on the map for new sequences and mark new projects dirty
• Ellipsize long plasmid names in map view to avoid overlap
• Exported enzyme JSON goes to stdout instead of a hardcoded home path
• Guard against a missing project when plasmid length is read

Downloads

Platform	Files	Notes
macOS	.dmg, .app.tar.gz	Apple Silicon
Windows	.msi, -setup.exe (NSIS)
Linux	.flatpak	amd64 + aarch64; aarch64 verified on Fedora