You do not have to trust me, but I did read the changelog before I post it.
The first line was Patch 1.2.33 (11 July 2017).

If you did read it one hour ago, it means GOG's system is not pushed to all servers in the same time.
I did not use https://www.gog.com/account/refresh in the period.

About the filename issue:
gogrepo.py reported different filename, and try to download setup_stardew_valley_1.2.33_%2813360%29.exe (the new name).

It is, and it's not. GOG pushes the update on the ADN through a single command, then said update propagates along the ADN at the ADN's speed. Depending on which ADN server you connect to, you may get the old or the new instance.
Same thing with forum posts, pages in a thread and more or less everything.

https://gogdb.yepoleb.me/changelog did not grab the stardew_valley update yet.
It updates every 2 hours.

I trust my own eye, and I did read the changelog.

GOG's CDN have strange behavior today.
Some xml for md5sum are downloadable with gogrepo.py, but can not grab via google chrome or wget.
It is the first time I encounter this.

I have this same weird encoding issue on about 20 files today from gogrepo. My wife's gogrepo also has the same issue.

With 203GB of "updated" files, I'm glad it's just a filename encoding issue. I always did think having parentheses in the filenames was silly.

The problem is same with the encoding issue I mentioned previously.
change ( ) to %28 %29 works for google chrome and wget.

I completely agree even though I don't have a clue what an ADN could be ... I know about NDA finally but this one .... ;)

Application Delivery Network.
Thought it was a CDN (Content Delivery Network) but one of the blues had corrected me a few years back.

Where on earth do you guys learn these things? And I think I am smart because I can read an analogue watch :D

Syberia 2

Update (09 November 2017)

Added the Fargus Russian localization of Syberia 2 for Windows,


Galactic Civilizations III

Patch 2.61 (09 November 2017)
Performance

General improvements to turn times.
Improved performance on lower end video cards.

Gameplay / Balance

AI much better about prioritizing construction of transports if they have military dominance.
Assassination event made more common
Fixed issue where the AI move limit was being doubled multiplied.
[Crusade] Factory output increased.
AI now has a separate mid and late game strategy system rather than relying on a single strategy the entire game.
Shipyards are no longer transferred to a player when a given player surrenders.
More techs provide administrative points.
AI bonuses at higher difficulty levels reduced due to improvements in AI.
Yellow stars are more likely to have habitable planets than previously.
Culture Module balance pass (slight decrease in culture output).
Adjacency bonuses for factories made to be the same as research buildings.
Cities now require Durantium and Promethion to construct in addition to food.
Fixing incorrect uv problem on relic
Changed Work Camp from base 5% manufacturing bonus to 2.5%, which makes upgrading to a Forced labor camp (5%) more appealing
Added morale bonus to Slave Works upgrade so you didn't lose that bonus from the lower tier improvement
Updated Yor tech tree so they can build the advanced research and economic starbase modules.

Multiplayer

[Crusade] Unit's gender is now the same on the peer and the host (prevents desyncs)
"Word on the Street" calculates the same number of planets for each player (prevents desyncs)
Fixed various other desyncs
Custom maps once again load for multiplayer games
You can no longer eject ships from starbases you don't own. Nasty cheaters!

Bugs

[Crusade] the planet window now only shows a Legions Available stat, instead of Garrisons and Legions as two separate stats on the screen
Stationing a transport at a starbase will no longer kill everyone on board.
The Alerts listbox scrollbar will no longer scroll past the bounds of the listbox
Starbases now correctly show up in the ship style set editor
Fixed typos
-------------
edit - added Syberia 2 changelog.

Was already be posted by muntdefems but yes, it's strange because filesize grew so it would be interesting to read what they changed.

Added the Fargus Russian localization of Syberia 2 for Windows.

Got it, thanks !

PS: Whohoooo ! More Fargus ! We need more Fargus !

What is a Fargus? ;)