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I just released version 2025.4 of Nitro along with matching updates for RAW Power on macOS and iOS.

You can get the updates on the App Store along with the release notes.

Nitro has a bunch of new stuff, including the hierarchical keyword feature.

I am putting the finishing touches on a hierarchical keyword feature for Nitro. I am also going to make a video since it’s a pretty deep feature.

After that, I am going to fix some bugs and send out a beta.

Download them on the App Store (go to the Updates area on the Store). Both apps add support for Fujifilm X-M5, Nikon Z50 II, OM Digital OM-3, Panasonic DC-GX880 and Panasonic DC-S5D. Nitro adds a bunch of features including borders, more zoom options, and better performance.

I released 2025.2 with some important fixes and am now on 2025.3. That is in beta testing right now. I have started working on keywords, but that is a larger effort, and there is so much in this release already that it makes sense to get it to you sooner rather than later.

Features:

• Borders – set up through Export. You can create multiple borders and choose the one you want in the Export UI.
• Export to shorter edge.
• Filter by Keyword when using the File System.
• Support for Fujifilm X-M5, Nikon Z50 II, OM Digital OM-3, Panasonic DC-GX880 and DC-S5D.

Usability:

• Add Zoom to 200, 300, 400%
• Preference for snapping sliders near zero.
• Preference for tighter zoom levels (10%) below 100%
• Info now has a segmented control to make map and metadata fit better on smaller screens + will give space for keyword editing.
• macOS: when deleting a file that is stored on a server, provide a delete confirmation dialog instead of an error.

Miscellaneous:

• Better performance with JPEGs when on iOS 18.
• File System Keywords now update in the UI when the XMP file changes.
• Improve Appearance of Linear and Radial gradients.
• Fix bug where brush strokes are offset if you straighten an image but do not also apply a crop to it.
• Fix for blurry images that have been cropped.
• Improve quality of fringe reduction in Chromatic Aberration.

I’m pleased to announce that the Nitro User Manual is (finally) finished. If you have suggestions for topics or corrections, please email me at support@gentlemencoders.com

You can view the manual online here: https://www.gentlemencoders.com/nitro/user-manual/index.html

It is only in English, but I made it in HTML so you can use your browser to translate the text, though the images will not be converted, of course.

This is a list of the improvements that will ship in 2025.1.

# New Features:
* Batch Auto Enhance – using the Batch menu on iOS and via the menus on Mac.
* Duplicate Mask and Duplicate + Invert Mask.
* New Auto Black in Levels and Curves with a setting to switch back to the old algorithm.
* Option to show photo counts for albums in the photo library – You can turn this on in Settings
* Add Sort options for the sidebar.

# Usability:
* iOS: when brushing and zoomed in, you can now use the trackpad to pan around the image.
* Add Flag and Favorite commands to the Batch menu on iOS, and also to the contextual menu (iOS and Mac)
* Do not show a disclosure control for empty folders in file system and photo library
* Mac: Add more commands to the Image menu when in Edit
* Add Copy Edits, Copy Special, and some other commands to the contextual menu when in Edit
* Add Switch R/J to the contextual menu in Edit (and to the Image menu on Mac).
* Show status bar on iPhone in portrait screen orientation.
* Do not enable Show Original unless you are in Edit and fix some cases where Show Original got “stuck”

# Miscellaneous:
* Improved Auto Enhance algorithm with less vibrancy and better handling of overexposed images.
* Fix several bugs with window preservation on Mac.
* Fix a lot of bugs with Crop, especially for images that are rotated by the user.
* Enable the Origin and Size fields for crop
* Fix bugs when brushing while zoomed in.
* Improve adjustment performance in some cases when in zoom.
* macOS 15.2 broke tagging for files in iCloud Drive. I have implemented a workaround.
* Fix various bugs with sampling colors and hues when the image is cropped.
* Fix: when in zoom and the image is cropped, if you move the sliders, the image would sometimes become blurry.
* Major performance improvement when rating a lot of images in the file system.
* Turning off standard raw development now also turns off Apple lens correction
* Fix two crashes.

I have added masking and a section on the iPhone-specific user interface.
https://www.gentlemencoders.com/nitro/user-manual/index.html

I updated the manual today with information on Presets, LUTs, R+J Editing, and Quick Fixes. I also added some navigation controls to make it easier to jump around.
You can get the manual here: https://www.gentlemencoders.com/nitro/user-manual/index.html

I stopped posting on Twitter some time ago. I will start posting on Blue Sky. Here is the handle: @gentlemencoders.bsky.social

I’m starting up the blog again to give people a little more insight into what’s going on with the apps. Since I do not want to inundate you with emails, I will update the blog (occasionally) instead. If you have an RSS reader, you can get automatically notified when new posts go up. The feed is https://support.gentlemencoders.com/feed/

I am getting close to releasing the next version of Nitro, which will be 2025.1. It has a mix of new features, usability, performance, and bug fixes [which is the norm for my updates]. I have been releasing new versions more frequently recently, after a lull in the fall (which was due to pressing personal matters). My goal is to send out new versions every 2 months on average. Monthly updates are too frequent to add features of consequence – there is a lot of overhead in shipping new versions, so there is a tension between getting “real” work done and getting software to you. Hopefully that cadence + this blog will satisfy people’s desire for software and news.

As far as RAW Power goes, there will be an update to RAW Power with the 2025.2 version of Nitro that has some camera support and bug fixes.