Looking for an explanation of how our “beta channel” works? See HERE for an explanation.
Note: Because these beta versions are downloaded relatively few times, they are sometimes not recognized as known good software by anti-malware packages. You may have to override your anti-malware's behavior of refusing to run unrecognized software.
If you have other security concerns about the beta installers, please see How To Validate A Download.
System Compatibility Checks
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Arch:
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Current beta is:
64-bit Windows 11, 10: ZS-Win64-fullsetup-T2026-02-27-1525-beta.exe
This installer is for most Windows computers, which still run Intel and AMD processors (actually anything Intel-compatible). It will also run on Windows 11 ARM computers in emulation mode.
Length 34621544 bytes
MD5 checksum a24a224c59f9e329bf18127ebdef4011
SHA-1 checksum aa0c61420cccb5371ec6bb0e5e24cadf8ab08ed0
64-bit ARM Windows 11: ZS-WinARM64-fullsetup-T2026-02-27-1525-beta.exe
This installer is specific for Windows 11 computers with ARM processors, such as Qualcomm Snapdragon. It runs in ARM-native mode and will not run on Intel and AMD processors. With ARM processors, this version is significantly faster than running the Intel version in emulation mode.
Length 33250160 bytes
MD5 checksum 0d64e124d72e0b290aa0de7dc8fdb4d7
SHA-1 checksum e0ba92192afbf7a8d10350c50bab6b31596c5f98
macOS (M-series cpu): ZS-macOS-AppleSilicon-SA-T2026-02-27-1525-beta.zip, downloads as a .zip file that automatically expands into an application bundle named ZereneStacker (.app).
This is the recommended bundle for modern Macs with an “Apple silicon” M-series cpu (ARM architecture). It is self-contained and includes its own ARM-native Java 25 runtime environment. Rosetta is required for the launch program and a few helper programs – so macOS will report the package as “Intel” – but all the heavy computation runs ARM-native.
Length 48,889,306 bytes
MD5 checksum 05ccf24c34684cac8274e6927b2a7fcc
SHA-1 checksum d1151cd4ba263eca4bd3fc0a0cf59504dc61e3f3
macOS (Intel cpu): ZS-macOS-Intel-SA-T2026-02-27-1525-beta.zip, downloads as a .zip file that automatically expands into an application bundle named ZereneStacker (.app).
This is the recommended bundle for modern Intel Macs running macOS 10.14 or above. It is self-contained and includes its own Java 25 runtime environment.
Length 50,312,091 bytes
MD5 checksum 51fab45578f685c27a247251dbf8191f
SHA-1 checksum c6aee919e67837c4eecf49122f9239780735e449
Note 1: This and all future versions of Zerene Stacker will require a 64-bit processor and relatively modern operating system. Support has been dropped for 32-bit processors, for Windows XP, 7, and 8, and for MacOS 13 and lower.
Note 2: On Macintosh and Linux, if you already have Zerene Stacker installed and are downloading a new version to update it, then you need to manually move the old version to trash, and move or rename the new version to replace it. Otherwise both versions will continue to be available, and you will run whichever one you happen to click on. For further information, see the FAQS on “Installing and Updating”. On Mac, when trashing out the old version, do NOT allow any third party uninstaller or cleanup applications like “AppCleaner” to run. In their enthusiasm to eliminate files that they think are not used, they're likely to also delete files you really do need, like your license key and Zerene Stacker configuration files.
Improvements
Compared to the current production version T2024-11-18-1210 and its corresponding T2024-11-18-1210-beta, this new T2026-02-27-1525-beta incorporates the following improvements:
Optimization: Align All Frames is now very fast if no adjustments are selected.
Lightroom plugin: allow user selection of any color profile in Lightroom.
Windows on ARM, added installer to provide native ARM JRE.
Screen preview caching, added options to allow TIFF, high quality JPEG, and deletion of screen preview cache files.
Debugging:
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Batch dialog, apply changes of output image disposition to all tasks in the batch.
Registration dialog, automatically resize to fit wide license keys.
Stereo calculator: keep angle and shift consistent (recalculate when other is changed).
Bug fixes:
Allow Windows abcdef~1 short form of long pathname component, when copying metadata.
Lightroom plugin manager, consistently diagnose failure to update script files.
Be sure warning dialog is visible, even if opened during StackShot initialization.
Avoid exception due to empty string in calculator fields on save/load.
Properly handle file saving parameters on explicit save/load of preferences.
Interpret values > 10 for pixel and font scaling as percentage.
Log detailed diagnostics when project save by copying fails.
JRE and libraries:
Updated to Java 25.0.1 on all platforms.
No further use of Java Advanced Imaging library. All image I/O is now done with built-in JRE methods.
Updated to current metadata-extractor (2.19.0).
Updated to current jdom (2.0.6.1)
Please immediately inform support@zerenesystems.com if you encounter any difficulties or odd behavior with this beta version. Be sure to send a console log if appropriate – instructions for that are provided HERE.
Previous public beta was:
macOS (Intel cpu): ZS-MacOSX-SA-T2024-11-18-1210-beta.zip, downloads as a .zip file that automatically expands into an application bundle named ZereneStacker (.app).
This is the recommended bundle for modern Intel Macs running macOS 10.14 or above. It is self-contained and includes its own Java 17 runtime environment.
Length 49,000,398 bytes
MD5 checksum 154cc9fae174f9a7a1ec706273123ac1
SHA-1 checksum 4b5d3f0f68a077367f15d25661e2a7d347649be6
macOS (M-series ARM cpu): ZS-MacOSX-ARM-SA-T2024-11-18-1210-beta.zip, downloads as a .zip file that automatically expands into an application bundle named ZereneStacker (.app).
This is the recommended bundle for modern Macs with an “Apple silicon” M-series cpu (ARM architecture). It is self-contained and includes its own ARM-native Java 17 runtime environment. Rosetta is required for the launch program and a few helper programs – so macOS will report the package as “Intel” – but all the heavy computation runs ARM-native.
Length 47,802,494 bytes
MD5 checksum ec597dc8c6be5be3d147a3f8b8c9eb32
SHA-1 checksum 04fd1cd8e1d15f1cb4ea48c03d44e1ca600b33b6
macOS (interim): ZS-MacOSXinterim-SA-T2024-11-18-1210-beta.zip, downloads as a .zip file that automatically expands into an application bundle named ZereneStacker (.app).
This bundle is suitable for Macs running macOS 10.9 through 10.14. It is self-contained and includes its own Java runtime environment.
Length 53,141,913 bytes
MD5 checksum 6498d30e9dc6d2d2aa64e8296acecf72
SHA-1 checksum 7776d741c470df89dcba17a51134b4fec40e19d6
Mac OS X (old): ZS-MacOSXold-SA-T2024-11-18-1210-beta.zip, downloads as an application bundle named ZereneStacker (.app).
This bundle is not self-contained. It requires a Java runtime environment installed by Apple, and will prompt for installation of Java if one is not already installed. It runs as 64-bit where the processor and operating system support it, and as 32-bit otherwise.
Length 9,263,520 bytes
MD5 checksum 1be0c1b7817829df4cc2d0741cd1f6ee
SHA-1 checksum 150722b9330be5b8a6daed9988c8b61835b24c4c