v1.3.0

1.3.0 (2026-11-05)

Features

• EELS Align signal range and crop are real controls (#87) (7a681d0)
• Help > Open Demo Data opens the generated demo documents (#108) (f9d7dfb)

Bug Fixes

• EELS fit notes popover and fit-quality line read cleanly (#96) (8855eee)
• EELS spectrum legend no longer covers the low loss and core loss labels (#93) (4b68682)
• Particles Export CSV writes into --export-dir and reports its result (#98) (d3c5cb8)
• remember files the sandbox grants read-only (#114) (ec59da7)

v1.2.0

1.2.0 (2026-11-02)

Features

• EELS keyboard regions, hovered pixel spectrum and profile labels (#82) (36aadd5)
• EELS Maps status line while maps are computed (#78) (3b3812d)
• EELS MLLS fit uses the reference spectra (#90) (903f3b9)
• EELS results footer opens the fit notes, as the EDS room (#81) (124d663)
• EELS room keyboard regions, the hovered pixel's spectrum and profile labels (36aadd5)
• EELS single spectrum and stage state on the section titles (#77) (521675d)
• EELS Spectrum MSA export, method JSON SHA-256, Info tilts and beam source (#79) (e2bd1f6)

Bug Fixes

• EELS profile lists only the shown maps; the hovered spectrum shows in light mode (#84) (d49acb1)
• EELS results table shows at% and wt% without clipping (#88) (7383d0f)
• EELS ZLP shift tile contrast and the empty tooltip on the colour mix (#91) (1d43ad8)
• Open Files shows the scan size of an EELS spectrum image (#89) (a701ded)
• the EELS room opens a single spectrum (#85) (77d81fc)

v1.1.1

New

• EELS room: deconvolution, MLLS fitting, wt% maps, and uncertainties on at% and wt%.
• The Results room lists the EDS composition and the EELS thickness and edges.
• Particles: automatic threshold, a minimum-size filter, areal density, and an object table window.
• Find Spots ranks spots by contrast.
• Long calculations show elapsed time and an estimate of the time left.

Improved

• EDX and EELS quantification is more accurate in some cases, so results can differ slightly from 1.0.
• Clearer messages when a calculation can't run.

Fixed

• A single .msa spectrum opens from Finder, the Open panel and drag and drop.
• Saving to a session, decimal marks, and GPU precision.
• The download now works: 1.1.0 shipped without an installer.

Requires macOS 26 or later on Apple silicon.

v1.1.0

Download 1.1.1: this version has no installer.

New

• EELS room: deconvolution, MLLS fitting, wt% maps, and uncertainties on at% and wt%.
• The Results room lists the EDS composition and the EELS thickness and edges.
• Particles: automatic threshold, a minimum-size filter, areal density, and an object table window.
• Find Spots ranks spots by contrast.
• Long calculations show elapsed time and an estimate of the time left.

Improved

• EDX and EELS quantification is more accurate in some cases, so results can differ slightly from 1.0.
• Clearer messages when a calculation can't run.

Fixed

• A single .msa spectrum opens from Finder, the Open panel and drag and drop.
• Saving to a session, decimal marks, and GPU precision.

Requires macOS 26 or later on Apple silicon.

macTEM 1.0.0

First release. TEM images, EDS and EELS spectrum images and electron diffraction on Apple silicon Macs with macOS 27. Download macTEM-1.0.0.dmg, open it and drag macTEM to Applications.