Changelog for patch GOG-3 (Mac) (added 23 September 2015):

- We've uploaded a "GOG version fix" for Mac users that will resolve the following issues:
- No sound for the frictional games logo.
- No sound for menu buttons.
- Game crashes when trying to load first level as it does not find the script for it.
- This fix is available both via Galaxy and there is an offline Mac patch available.

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Changelog for Patch 1.02 (added 30 September 2015):

- Fixed stuttering frame-rate
- Fixed SOMA refuses to start issue
- Fixed crashes at various places
- Fixed stungun not functioning at lambda
- Fixed missing levers or doors

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Changelog for patch 1.03 (added 13 November 2015):

- This update applies minor fixes to SOMA.
- Fixed a bug where a tool could get stuck in the player hands.
- Fixed a bug where the player got stuck in the shuttle after jumping down with the stun baton.
- Added better multi-monitor support.
- Mod tool fixes and improvements, including support for snt files.
-Modlauncher added to Mac/Linux.

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Changelog for patch 1.03 (added 20 November 2015):

- We've updated the Mac version of the game to version 1.03.
- The Linux version received an update for version 1.03. The version number remains the same.

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Changelog for patch 1.10 (added 16 December 2015):

- Support for mod dependencies in game: a mod can be built on top of other mods without the need of messing around with resources now.
- Support for mod dependencies in tools: this means tools will resolve dependencies and all added assets will become available to the user (and no more tweaking of resources.cfg file needed!)
- Fixed long startup times in LevelEditor, also reduced memory footprint when using a mesh object creator (static objects, entities, detailmeshes edit modes).
- Brought back random scale and rotation controls in LevelEditor.
- Added some nice icons to the tools and minor bugfixes.

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Changelog for patch 1.10 March 31st update / GOG-5 (Windows) / GOG-8 (Mac) / GOG-6 (Linux) (added 16 April 2016):

Game:

- Fixed a rare bug which caused the Omnitool not to activate near door panels

Modding:

- Added more script documentation to the helper scripts
- Fixed bug that prevented editor dialogs from being opened more than once
- Fixed the cMatrixf constuctor using the wrong arguments

Changelog for Patch 1.500 (01 December 2017)

Added Safe Mode
Safe Mode introduces an optional new way to play SOMA. Protected from the hostile creatures below, let yourself sink into the mystery and atmosphere of PATHOS-II as you uncover the truth and determine the fate of the station.

site shows another patch for SOMA, no patch notes. No different patches files.
Have they just screwed up on the site again or...?

Changelog for Patch 1.500 RU Hotfix (added 06 December 2017):

- Fixed a bug with the Russian language version of SOMA.

Changelog for Patch 1.510 (added 11 April 2018):

- Fixed the Mod Launcher in the masOS version of the game
- Minor bug fixes

I'm guessing 1.6 simply is Simplified Chinese.

Soma 1.6.1 Available
Simplified Chinese now available for Amnesia: Rebirth and SOMA!
Simplified Chinese has been added to the list of available languages

Dear Chinese players,

We love and value our Chinese-speaking fans and constantly strive to make our games more accessible –
therefore we are happy to announce that Amnesia: Rebirth and SOMA are now available to play with
Simplified Chinese subtitles and interface.

With the help from passionate friends at Testronic the latest update of Amnesia: Rebirth and SOMA now includes
the option to play through the entire games in Simplified Chinese.

To change language setting:
   o Enter the main menu
   o Press "OPTIONS"
   o Press "GAME"
   o Scroll on the "Language" bar until you reach your desired language

If you run into any problems, contact our support.

To celebrate this occasion, we’re throwing a big sale on the entire Frictional Games library here on Steam!

So, if you or anyone you know has been holding off on playing these mind-boggling games because
they have been waiting for a Chinese translation or sale – now is the time!

To keep up to date with everything from Frictional Games,
please like us on Facebook,
follow us on Twitter,
and Instagram.

Thank you and have a great time playing Amnesia: Rebirth and SOMA!

Frictional Team

# Souce: https://store.steampowered.com/news/app/282140/view/5201084465225073990

# JMB: I just changed the library link to GOG offering ... hope this is appropriate - otherwise
#          please follow the source link to the original changelog incl. animated GIF!

~

GOG Offline Installer (01.10.2021 22:00 CET):
   o Lin:   1.61 (50361)
   o Win: 1.61 (50360)
   o Mac: 1.64 (51662)
# Update path (GNU/Linux): 1.5.1 (19930) => 1.5.1 (38774) [03.06.2020] => 1.6.1 (50361) [01.10.2021].
# Using HPL-3 with SDL2 (pure 64 Bit)