From MaGog's logs for 13 April (part 3 of 4):

NOTE! Probably CHANGED FILE Kingdom, all_files, Windows installer, English, dl_ver: 1.1.0 (gog-6) ***TO*** 1.2.0 (gog-7) (same for all other languages)

NOTE! Probably CHANGED FILE Kingdom, all_files, Mac OS X installer, English, dl_ver: 1.1.0 (gog-6) ***TO*** 1.2.0 (gog-7) (same for all other languages)

NOTE! Probably CHANGED FILE Kingdom, all_files, Linux installer, English, dl_ver: 1.1.0 (gog-6) ***TO*** 1.2.0 (gog-7) (same for all other languages)

NOTE! CHANGED Kingdom, changelog (http://www.an-ovel.com/downloads/chg/chg_1444654650.htm)
NOTE! ADD +++ Patch 1.2.0 (13 April 2016)
NOTE! ADD +++ Gameplay updates
NOTE! ADD +++ All characters can now run. They will run if they need to get to a job, or run away if they are threatened by enemies.
NOTE! ADD +++ The AI has had a complete overhaul, it should process much faster and with less glitches. This means game runs significantly smoother under most conditions, even late in the game when many enemies show up.
NOTE! ADD +++ New menu with more options: change sound / music volume separately. Allow change zoom level if available.
NOTE! ADD +++ Collision resolution has been improved to decrease lag with many coins.
NOTE! ADD +++ Saving (by quitting the game) is possible at night and in combat.
NOTE! ADD +++ Borders aren't moved while a wall is under construction. This means archers will stay in position while walls are upgraded.
NOTE! ADD +++ Knights will retreat to an intact wall if the outer wall takes too much damage.
NOTE! ADD +++ Knight attack procedure makes them more consistent.
NOTE! ADD +++ Overhaul for the boss monster.
NOTE! ADD +++ Many, many fixes for bugs from the forums.
NOTE! ADD +++ New (faster) horses.
NOTE! ADD +++
NOTE! ADD +++ Changes
NOTE! ADD +++ Enemy boulders damage maximum of 5 citizens
NOTE! ADD +++ Make archers always run when redistributing
NOTE! ADD +++ Portals stay closed longer before spawning
NOTE! ADD +++ Workers won't work on things too close to a spawner
NOTE! ADD +++ Deer are no longer scared of unarmed citizens
NOTE! ADD +++ Final Wave no longer increases in difficulty before day 100, and is no longer easier before day 30.
NOTE! ADD +++ Adjusted enemies to bit a bit more threatening for earlier (day 20 and earlier) Blood Moons.
NOTE! ADD +++ Reduced Fliers in several waves and delayed their introduction to a later Blood Moon Event
NOTE! ADD +++ Only during the first Blood Moon when players encounter the Breeder is it alone.
NOTE! ADD +++ Slight tweaks to Portal collapse waves.
NOTE! ADD +++
NOTE! ADD +++ Fixes
NOTE! ADD +++ Prevent load crash with incomplete teleporter
NOTE! ADD +++ Prevent paying twice for border banner knight charge
NOTE! ADD +++ Limit troll speed depending on wave, preventing them from arriving early
NOTE! ADD +++ Fix shops disappearing after save/load during construction
NOTE! ADD +++ Fix castle being under construction after load
NOTE! ADD +++ Fix knights not immediately showing up in right color after load
NOTE! ADD +++ Fix duplicate shield save/load exploit
NOTE! ADD +++ Fix archers going to the wrong side after losing tool/reviving
NOTE! ADD +++ Prevent "resume after winning" exploit
NOTE! ADD +++ Make hidden outer portals invulnerable
NOTE! ADD +++ Fix fog not disappearing
NOTE! ADD +++ Fix visuals getting stuck after saving+loading in forest
NOTE! ADD +++ Realigned menu graphics (day counter/coat of arms)
NOTE! ADD +++ Fix archers going to inactive tower on load
NOTE! ADD +++ Hook up some statistics
NOTE! ADD +++ Fix blinking objects (e.g. bow on purchase) turning black
NOTE! ADD +++ Clearing now grows grass properly
NOTE! ADD +++ Fix correctly saving coat of arms emblem
NOTE! ADD +++ Preserve blender (weather) state when saving/loading
NOTE! ADD +++ Fix 1.2 Loading Crash and "Double Horse"
NOTE! ADD +++ Tweak linear-> Decibel conversion for volume options
NOTE! ADD +++ Fix dead monsters reanimating and invulnerable on load
NOTE! ADD +++ Fix cliffs disappearing after save.
NOTE! ADD +++ Fix trolls blocked at level edge
NOTE! ADD +++ Fix arrow/controller navigation in options
NOTE! ADD +++ Fix multiple sound instances when citizens pay taxes
NOTE! ADD +++ Fix positioning of border banner so it doesn't overlap other payables
NOTE! ADD +++ Allow 4 archers per knight
NOTE! ADD +++ Fix knights not retreating from an almost broken wall
NOTE! ADD +++ Improve archer targeting with multiple targets

NOTE! CHANGED Kingdom, file_size: 198 MB ***TO*** 212 MB

From MaGog's logs for 13 April (part 4 of 4):

NOTE! Probably CHANGED FILE Solus Project, The [In Dev], all_files, Windows installer, English (part 1/2 of 2), dl_ver: 0.57 (gog-5) ***TO*** 0.58 (gog-6)

NOTE! Probably ADDED FILE Solus Project, The [In Dev], all_files, Patch 0.58 [Windows], dl_ver: ***TO*** 0.57 (gog-5) -> 0.58 (gog-6)

NOTE! CHANGED Solus Project, The [In Dev], changelog (http://www.an-ovel.com/downloads/chg/chg_1455617752.htm)
NOTE! ADD +++ Patch 0.58 (13th April 2016)
NOTE! ADD +++ Besides new Episode 3 content this is version 0.58 which includes a patch with the changelist below.
NOTE! ADD +++ The Danish language not loading might still be a thing. We consider it minor.
NOTE! ADD +++ We are working on Galaxy implementation, such as achievements.
NOTE! ADD +++
NOTE! ADD +++ Major:
NOTE! ADD +++ Save game format was tweaked to be more flexible for the future! Backwards compatibility was built in but let us know if you hit any unexpected issues!
NOTE! ADD +++ Force feedback support added.
NOTE! ADD +++ Balancing: Text scrolls slower + speed can be set via ini file. Flashlight upgrades give 15% now. Major fix for hypothermia being incorrectly calculated in average temperature environments. While sleeping your body temperature changes less.
NOTE! ADD +++ Smoke monster also attacks other sources of heat now. You can hide yourself with cold items. Can now recraft the frame device found in the second large cave level.
NOTE! ADD +++ When climbing ladders you now go down with forward if looking down
NOTE! ADD +++ Cannot strafe on ladders anymore to lessen risk falling off
NOTE! ADD +++
NOTE! ADD +++ Core:
NOTE! ADD +++ Changes to Xbox controller layout
NOTE! ADD +++ Game now supports force feedback for Xbox controller
NOTE! ADD +++ Audio now uses 64 channels instead of 32. This fixes all forms of audio noise and restarts but may impose higher demands on PC. Please keep an eye out for any problems here.
NOTE! ADD +++ PDA Story text reading slower
NOTE! ADD +++ PDA story text read speed can also be manually set via game.ini
NOTE! ADD +++ Communication tower parts now correctly saved and loaded on levels other than Crossroads.
NOTE! ADD +++ Swords can also open cans of food now
NOTE! ADD +++ Smoke Monster now also attacks heat crystals, and can now no longer see the player if the player holds a cold emitting item. Upon attacking a heat device it also allows for the heat device to be emptied and return to its shell state thereby allowing you to craft a different kind of device next time around.
NOTE! ADD +++ Glitched torch problem fixes where lighting one torch with another could result in unusable torches in some scenarios.
NOTE! ADD +++ Ocean reflections now a lot faster to render, and due to that ocean reflection sharpness increased
NOTE! ADD +++ Game has better check for when you are outdoors, resulting in less stoppage of rain in places where it doesn't make sense
NOTE! ADD +++ Sky One disappears in a cloud of smoke now.
NOTE! ADD +++ Flamethrower ignites items you hold better
NOTE! ADD +++ All items are less likely to fall through the ground now. May give unforeseen consequences. Please keep an eye out on it.
NOTE! ADD +++ Inventory button must be held on Xbox controller now + color tweaks to UI.
NOTE! ADD +++
NOTE! ADD +++ Balancing:
NOTE! ADD +++ Buffs go down 60% slower
NOTE! ADD +++ Can fall 15% further without taking damage (fall damage currently starts at 3 meter 80).
NOTE! ADD +++ Weather now mostly ignores Slow Day Night cycle setting. Weather changes 50% slower in Slow Day/Night but does still change unlike before.
NOTE! ADD +++ Battery upgrades flashlight extended from 10 to 15% per upgrade.
NOTE! ADD +++ Flashlight loses power slower if difficulty is easy or if slow day and night is enabled
NOTE! ADD +++ Can jump 10% higher and accelerate slightly faster when walking
NOTE! ADD +++ Warmth crystals in the levels give off a bit more heat.
NOTE! ADD +++ While sleeping temperature stays more stable
NOTE! ADD +++ Serious calculation error fixed in hypothermia recovery rates when in medium warm environments
NOTE! ADD +++
NOTE! ADD +++ UI:
NOTE! ADD +++ Xbox and PC news in main menu now split up
NOTE! ADD +++ Support for Russian, German, French, and Spanish has been extended further but is not yet final.
NOTE! ADD +++ Credits updated.
NOTE! ADD +++
NOTE! ADD +++ Levels:
NOTE! ADD +++ Landing floating meshes and holes fixed
NOTE! ADD +++ Flashpoint Cave 1 hole fixed
NOTE! ADD +++ Flashpoint Cave 1 warning about fire extended to also include heat + moved to earlier in the level for increased awareness
NOTE! ADD +++ Flashpoint Cave 2 green fire now also heats you and ignites torches
NOTE! ADD +++ Return journey at the end of Episode 2 now more clearly guided and more visually pleasing
NOTE! ADD +++ Flashpoint multiple holes fixed
NOTE! ADD +++ Flashpoint weather change 20% faster
NOTE! ADD +++ Flashpoint sharks swimming through the islands fixed
NOTE! ADD +++ Crossroads incorrect North/South orientation sky fixed
NOTE! ADD +++
NOTE! ADD +++ VR:
NOTE! ADD +++ In VR PDA is a bit more angled to make reading a bit easier

NOTE! CHANGED Solus Project, The [In Dev], file_size: 2.4 GB ***TO*** 2.9 GB

Because it makes assumptions that confuse people who don't follow the forums. (eg. Talking repeatedly about a character that is currently only available in "this beta build" without making it clear whether GOG users have any way to receive said beta builds.)

ssokolow explained it great as well. I'll explain it too.

The changelog mentions versions inbetween 1.20.4 (the last GOG version) and 1.21.4 (the current GOG version), of which, most of these are beta builds exclusive to Steam (they were even DRM'd).

Said builds mention a new character, namely Torque. The problem is, Torque was never released in 1.21.4 (this version update is only dedicated to adding another kind of content for an existing character--Milla's Adventure Mode), and thus any information related to Torque isn't in the interest of GOG users. And neither are the versions inbetween 1.20.4 and 1.21.4 are in the interest of GOG users.

The reason this mess happened is because they decided to push the update first on Steam and then push the rest on the basis of the costs to make new builds for the game that conform to DRM-free standards. I can't see why we shouldn't have a proper changelog that mentions info we can relate to and not stuff like "the Wood Buster's damage was nerfed" which I cannot make proper use of as the character who uses the Wood Buster isn't even unlocked yet.

That's my explanation for me.

Oh weird, the changelogs gave me the impression torque had been added.

From MaGog's logs for 14 April:

[The System Requirements of Ronin: Digital Special Edition Upgrade [DLC] are now in Russian. Reminder: The same is true of Samorost 3 Soundtrack + Art Book [DLC] (where also the Description is in Russian).]





NOTE! CHANGED Solus Project, The [In Dev], changelog (http://www.an-ovel.com/downloads/chg/chg_1455617752.htm)
NOTE! ADD +++ In "the Highpoint Expansion" the player will explore the new and very vertical Highpoint island, along with its accompanying massive cave level. Tons of new content is added in this free expansion. Over three hours worth of additional story and gameplay is added including a new cave look, acid lakes, dozens of strange flying orbs, a monstrous creature, and last but not least a huge windmill.
NOTE! ADD +++ The plot thickens as the player ventures ever deeper into the world of The Solus Project and begins to understand ever more of what has happened on the planet.
NOTE! ADD +++ Alongside the new content a large new patch is included fixing known bugs and balancing dozens of existing features.
NOTE! RMV --- Besides new Episode 3 content this is version 0.58 which includes a patch with the changelist below.

[Changes to yesterday's changelog]





NOTE! CHANGED FILE Stronghold HD, downloadables, Mac OS X installer, English (stronghold_hd_2.0.0.4.dmg ***TO*** stronghold_hd_2.1.0.6.dmg; gog-4 ***TO*** 1.3 (gog-6); Thu, 03 Dec 2015 16:08:07 GMT ***TO*** Thu, 14 Apr 2016 10:18:55 GMT; 923,380,475 ***TO*** 923,402,774)

NOTE! CHANGED FILE Stronghold HD, downloadables, Mac OS X installer, French (stronghold_hd_french_2.0.0.4.dmg ***TO*** stronghold_hd_french_2.1.0.6.dmg; gog-4 ***TO*** 1.3 (gog-6); Thu, 03 Dec 2015 16:08:42 GMT ***TO*** Thu, 14 Apr 2016 10:19:17 GMT; 923,187,325 ***TO*** 923,361,404)

NOTE! CHANGED FILE Stronghold HD, downloadables, Mac OS X installer, German (stronghold_hd_german_2.0.0.4.dmg ***TO*** stronghold_hd_german_2.1.0.6.dmg; gog-4 ***TO*** 1.3 (gog-6); Thu, 03 Dec 2015 16:08:25 GMT ***TO*** Thu, 14 Apr 2016 10:19:25 GMT; 932,596,676 ***TO*** 932,826,077)

NOTE! CHANGED FILE Stronghold HD, downloadables, Mac OS X installer, Italian (stronghold_hd_italian_2.0.0.4.dmg ***TO*** stronghold_hd_italian_2.1.0.6.dmg; gog-4 ***TO*** 1.3 (gog-6); Thu, 03 Dec 2015 16:08:33 GMT ***TO*** Thu, 14 Apr 2016 10:19:10 GMT; 916,975,719 ***TO*** 917,158,267)

NOTE! CHANGED FILE Stronghold HD, downloadables, Mac OS X installer, Polish (stronghold_hd_polish_2.0.0.4.dmg ***TO*** stronghold_hd_polish_2.1.0.6.dmg; gog-4 ***TO*** 1.3 (gog-6); Thu, 03 Dec 2015 16:09:10 GMT ***TO*** Thu, 14 Apr 2016 10:19:36 GMT; 963,800,188 ***TO*** 964,054,802)

NOTE! CHANGED FILE Stronghold HD, downloadables, Mac OS X installer, Spanish (stronghold_hd_spanish_2.0.0.4.dmg ***TO*** stronghold_hd_spanish_2.1.0.6.dmg; gog-4 ***TO*** 1.3 (gog-6); Thu, 03 Dec 2015 16:09:21 GMT ***TO*** Thu, 14 Apr 2016 10:20:06 GMT; 1,160,882,069 ***TO*** 1,160,790,195)

NOTE! CHANGED Stronghold HD, changelog (http://www.an-ovel.com/downloads/chg/chg_1207658712.htm)
NOTE! ADD +++ Patch gog-6 (14 April 2016)
NOTE! ADD +++ We've updated the Mac version to fix a regression that caused problems for the non-English versions of the game with Mac OS X 10.11 "El Capitan".
NOTE! ADD +++ Added the missing in-game version number to My Account.

For those who want a cleaned up version of the Freedom Planet changelog, take this link:
https://onedrive.live.com/redir?resid=6415CEF5FC0EACBE!3757&authkey=!ANFMb8kmxWo-vCQ&ithint=file%2ctxt

Cool! An update for the update changelog ;) Thank you!

DROD: The Second Sky

Patch 5.1.0.6512 (15 April 2016)
this patch fixes a critical regression introduced in an earlier version of the game.
the Linux version will updated to the latest version ASAP.

EDIT: Wrong date on the changelog, me thinks...

From MaGog's logs for 14 April:

NOTE! Probably CHANGED FILE Democracy 3: Africa, all_files, Windows installer, English, dl_ver: 20160413 (gog-2) ***TO*** 1.01 (gog-3)

NOTE! Probably CHANGED FILE Democracy 3: Africa, all_files, Mac OS X installer, English, dl_ver: 20160413 (gog-2) ***TO*** 1.01 (gog-3)

NOTE! CHANGED Democracy 3: Africa, changelog (http://www.an-ovel.com/downloads/chg/chg_1459868439.htm)
NOTE! ADD +++ Patch 1.01 (14 April 2016)
NOTE! ADD +++ Fixed an issue with Windows XP support.
NOTE! ADD +++ added some minor tweaks and fixes overall





NOTE! CHANGED FILE DROD: The Second Sky, downloadables, Windows installer, English (setup_drod_the_second_sky_2.1.0.2.exe ***TO*** setup_drod_the_second_sky_2.2.0.3.exe; 5.1.0.6501 (gog-2) ***TO*** 5.1.0.6512 (gog-3); Wed, 23 Mar 2016 14:34:04 GMT ***TO*** Thu, 14 Apr 2016 17:37:36 GMT; 649,319,592 ***TO*** 649,315,768)

NOTE! CHANGED FILE DROD: The Second Sky, downloadables, Mac OS X installer, English (drod_the_second_sky_2.1.0.4.dmg ***TO*** drod_the_second_sky_2.2.0.5.dmg; 5.1.0.6504 (gog-4) ***TO*** 5.1.0.6513 (gog-5); Wed, 23 Mar 2016 14:33:55 GMT ***TO*** Thu, 14 Apr 2016 17:37:11 GMT; 427,719,442 ***TO*** 427,573,209)

NOTE! CHANGED DROD: The Second Sky, changelog (http://www.an-ovel.com/downloads/chg/chg_1207665683.htm)
NOTE! ADD +++ Patch 5.1.0.6512 (15 April 2016)
NOTE! ADD +++ this patch fixes a critical regression introduced in an earlier version of the game.
NOTE! ADD +++ the Linux version will updated to the latest version ASAP.





NOTE! Probably CHANGED FILE Invisible Inc., all_files, Windows installer, English, dl_ver: build 20151202 (gog-6) ***TO*** 173288 (gog-7)

NOTE! Probably REMOVED FILE Invisible Inc., all_files, Patch 20151202 [Windows]

NOTE! Probably ADDED FILE Invisible Inc., all_files, Patch 173288 [Windows], dl_ver: ***TO***

NOTE! Probably CHANGED FILE Invisible Inc., all_files, Mac OS X installer, English, dl_ver: build 20151202 (gog-9) ***TO*** 173288 (gog-10)

NOTE! Probably ADDED FILE Invisible Inc., all_files, Patch 173288 [Mac OS X], dl_ver: ***TO***

NOTE! Probably CHANGED FILE Invisible Inc., all_files, Linux installer, English, dl_ver: build 20151202 (gog-10) ***TO*** 173288 (gog-11)

NOTE! Probably ADDED FILE Invisible Inc., all_files, Patch 173288 [Linux], dl_ver: ***TO***

NOTE! Probably CHANGED FILE Invisible Inc., all_files, DLC: Contingency Plan: Windows installer, English, dl_ver: build 20151202 (gog-6) ***TO*** 173288 (gog-6)

NOTE! Probably CHANGED FILE Invisible Inc., all_files, DLC: Contingency Plan: Mac OS X installer, English, dl_ver: build 20151202 (gog-9) ***TO*** 173288 (gog-10)

NOTE! Probably CHANGED FILE Invisible Inc., all_files, DLC: Contingency Plan: Linux installer, English, dl_ver: build 20151202 (gog-2) ***TO*** 173288 (gog-2)

NOTE! CHANGED Invisible Inc., changelog (http://www.an-ovel.com/downloads/chg/chg_1430744353.htm)
NOTE! ADD +++ Patch 173288 (14 April 2016)
NOTE! ADD +++ fixes a shutdown bug with Win 10
NOTE! ADD +++ Penetration Scanner won't grant armor penetration unless installed
NOTE! ADD +++ now.
NOTE! ADD +++ The refresh mods button requires a game restart to refresh the mods,
NOTE! ADD +++ but the mods can now properly refresh.
NOTE! ADD +++ Programs Lightning and Wisp work properly with Charge now.
NOTE! ADD +++ Modding feature: Rescued agents portrait can now refer to a build as
NOTE! ADD +++ well as an anim.





NOTE! Probably CHANGED FILE Kim [In Dev], all_files, Windows installer, English, dl_ver: 0.1.3 (gog-2) ***TO*** 0.1.4 (gog-4)

NOTE! Probably ADDED FILE Kim [In Dev], all_files, Patch 0.1.4 [Windows], dl_ver: ***TO*** 0.1.3 (gog-2) -> 0.1.4 (gog-4)

NOTE! Probably CHANGED FILE Kim [In Dev], all_files, Mac OS X installer, English, dl_ver: 0.1.3 (gog-2) ***TO*** 0.1.4 (gog-3)

NOTE! Probably ADDED FILE Kim [In Dev], all_files, Patch 0.1.4 [Mac OS X], dl_ver: ***TO*** 0.1.3 (gog-2) -> 0.1.4 (gog-3)

NOTE! CHANGED Kim [In Dev], changelog (http://www.an-ovel.com/downloads/chg/chg_1457696959.htm)
NOTE! ADD +++ Patch 0.1.4 (14th April 2016)
NOTE! ADD +++ Fixed seamstress delivery end dialogue crash
NOTE! ADD +++ Fixed so happiness/health bottles have the same height at the same values
NOTE! ADD +++ Fixed so opening the map doesn't break streaming applications
NOTE! ADD +++ Made the resolution handler smarter
NOTE! ADD +++ Fixed some graphical glitches in the results screen
NOTE! ADD +++ A few conversation fixes for The Mavericks





NOTE! CHANGED Sid Meier's Pirates!, rls_date: July 11, 2005 ***TO*** November 22, 2004





NOTE! CHANGED Xenonauts, sys_req_linux: Ubuntu 14.04, Mint 17, Processor:Intel 2 GHz, Memory:1 GB RAM, Graphics:Integrated Graphics, Hard Drive:3 GB HD space, Sound:Integrated, Monitor:1280x720 pixels minimum, Requires the following packages to be installed: libc6:i386 libasound2:i386 libasound2-data:i386 libasound2-plugins:i386 and dependencies, Notice: this game comes with a 32-bit binary only, Recommended system requirements: Ubuntu 14.04, Mint 17, Processor:Intel 2 GHz, Memory:2 GB RAM, Graphics:512 MB DirectX 9.0c Compliant Video Card, Hard Drive:3 GB HD space, Sound:Integrated, Monitor:1280x720 pixels minimum, Requires the following packages to be installed: libc6:i386 libasound2:i386 libasound2-data:i386 libasound2-plugins:i386 libsdl2-2.0-0:i386 and dependencies, Notice: this game comes with a 32-bit binary only ***TO*** Ubuntu 14.04, Mint 17, Processor:Intel 2 GHz, Memory:1 GB RAM, Graphics:Integrated Graphics, Hard Drive:3 GB HD space, Sound:Integrated, Monitor:1280x720 pixels minimum, Requires the following packages to be installed: libc6:i386 libasound2:i386 libasound2-data:i386 libasound2-plugins:i386 libsdl2-2.0-0:i386 and dependencies, Notice: this game comes with a 32-bit binary only, Recommended system requirements: Ubuntu 14.04, Mint 17, Processor:Intel 2 GHz, Memory:2 GB RAM, Graphics:512 MB DirectX 9.0c Compliant Video Card, Hard Drive:3 GB HD space, Sound:Integrated, Monitor:1280x720 pixels minimum, Requires the following packages to be installed: libc6:i386 libasound2:i386 libasound2-data:i386 libasound2-plugins:i386 libsdl2-2.0-0:i386 and dependencies, Notice: this game comes with a 32-bit binary only

Afterlife: Audio and text: Deutsch

Another one with German language support added, nice. :) Thank you!

For reasons explained here, this will be reported by MaGog only in about six hours.