You could set up GOG->IsThereAnyDeal.com wishlist sync and configure it to retain entries that drop off your GOG wishlist. That'd also give the advantage of letting you receive e-mail notification of deals which meet your pricing criteria.

From MaGog's logs for 28 September:

NOTE! CHANGED FILE Infested Planet, downloadables, Original Game: Windows installer, English (setup_infested_planet_2.2.0.3.exe ***TO*** setup_infested_planet_2.3.0.4.exe; 1.03.2 (gog-3) ***TO*** 1.03.4 (gog-4); Thu, 07 May 2015 13:32:02 GMT ***TO*** Mon, 28 Sep 2015 09:44:50 GMT; 66,740,224 ***TO*** 66,774,112)

NOTE! CHANGED FILE Infested Planet, downloadables, Original Game: Mac OS X installer, English (infested_planet_2.1.0.18.dmg ***TO*** infested_planet_2.2.0.19.dmg; 1.03.2 (gog-18) ***TO*** 1.03.4 (gog-19); Thu, 07 May 2015 13:32:27 GMT ***TO*** Mon, 28 Sep 2015 09:43:52 GMT; 81,286,765 ***TO*** 81,082,005)

NOTE! CHANGED FILE Infested Planet, downloadables, DLC: Trickster's Arsenal: Windows installer, English (no change in name; ***TO*** 1.03.4 (gog-3); no change in date/time; no change in size)

NOTE! CHANGED FILE Infested Planet, downloadables, DLC: Trickster's Arsenal: Mac OS X installer, English (dlc_infested_planet_tricksters_arsenal_2.1.0.18.pkg ***TO*** dlc_infested_planet_tricksters_arsenal_2.2.0.19.pkg; ***TO*** 1.03.4 (gog-19); Thu, 07 May 2015 13:32:45 GMT ***TO*** Mon, 28 Sep 2015 09:43:50 GMT; 30,188 ***TO*** 27,961)

NOTE! CHANGED Infested Planet, changelog (http://www.an-ovel.com/downloads/chg/chg_1207666233.htm)
NOTE! ADD +++ Patch 1.03.4 (28.09.2015)
NOTE! ADD +++ This patch focuses on improving stability within the game. Several crash bugs have been fixed, so the game should behave better.
NOTE! ADD +++ Also, audio errors are no longer fatal when starting the game. If there is an audio error, then the game just continues without sound. This is useful if you don't have any audio devices plugged in.

[Note that the Windows DLC installer (unlike the Mac DLC installer) changed its version to 1.03.4 without the file actually changing. Was this as intended?]





NOTE! Probably CHANGED FILE Oceanhorn: Monster of Uncharted Seas, all_files, Windows installer, English, dl_ver: ***TO*** 3.1.43.556 (gog-5)

NOTE! CHANGED Oceanhorn: Monster of Uncharted Seas, changelog (http://www.an-ovel.com/downloads/chg/chg_1426499435.htm)
NOTE! ADD +++ Patch 3.1.43.556 (28.09.2015)
NOTE! ADD +++ Optimized shadow filtering and dynamic geometry flushing to get better results and performance.
NOTE! ADD +++ Fixed graphics corruption bug that occured on some devices with the latest Nvidia drivers.
NOTE! ADD +++ Fixed cloud shadows and other shadow problems on some characters.
NOTE! ADD +++ Improved Giant Cepede miniboss fight.
NOTE! ADD +++ Fixed enemy AI path finding bugs that could cause some enemies to get stuck.
NOTE! ADD +++ Improved font rendering for Chinese, Japanese, Korean, and Russian language versions.
NOTE! ADD +++ Fixed mouse control problems while sailing or fishing and playing in windowed mode.
NOTE! ADD +++ Fixed a bug that caused Game Saved notification to be displayed twice in some cases.
NOTE! ADD +++ Fixed a bug that caused Ice Elemental enemies to set wooden objects on fire.
NOTE! ADD +++ Fixed a bug that caused secondary weapon to be unequipped after the Coral Saber flashback.
NOTE! ADD +++ Fixed a control glitch after finding the Store Cube.
NOTE! ADD +++ Added floating crates on the minimap while sailing.
NOTE! ADD +++ Fixed Attacker Owru's shadow when she flies away.
NOTE! ADD +++ Fixed door opening animations.
NOTE! ADD +++ Tweaked in-game voice over and sound effect volume levels.
NOTE! ADD +++ Fixed a music volume level bug that could sometimes cause volume changes to be ignored.
NOTE! ADD +++ Misc small level bug fixes.
NOTE! ADD +++ Small graphics improvements and visual effect tweaks.
NOTE! ADD +++ Fixed small typos in texts.





NOTE! CHANGED FILE Telepath Tactics, downloadables, Windows installer, English (setup_telepath_tactics_2.19.0.21.exe ***TO*** setup_telepath_tactics_2.20.0.22.exe; 1.047 (gog-21) ***TO*** 1.048 (gog-22); Mon, 21 Sep 2015 09:11:36 GMT ***TO*** Mon, 28 Sep 2015 10:04:33 GMT; 156,510,592 ***TO*** 156,511,648)

NOTE! CHANGED FILE Telepath Tactics, downloadables, Mac OS X installer, English (telepath_tactics_2.17.0.28.dmg ***TO*** telepath_tactics_2.18.0.28.dmg; 1.047 (gog-28) ***TO*** 1.048 (gog-28); Mon, 21 Sep 2015 09:11:53 GMT ***TO*** Mon, 28 Sep 2015 10:05:39 GMT; 162,213,873 ***TO*** 163,502,956)

NOTE! CHANGED Telepath Tactics, changelog (http://www.an-ovel.com/downloads/chg/chg_1428918226.htm)
NOTE! ADD +++ Patch 1.048 (09.28.2015)
NOTE! ADD +++ fixed a bug in which the game would sometimes fail to recognize the designated scene to go to when loading a saved game, thereby causing the load to fail.
NOTE! ADD +++ fixed a bug in which character labels would use incorrect numerical labels in save files, starting from -1 instead of 1.
NOTE! ADD +++ made it so apples restore 4 energy once again, but this time went ahead and updated the apple item description and description in shops so this wouldn’t look like a bug.

From MaGog's logs for 28 September:

[The inexplicable changes undergoing Book of Unwritten Tales 2, first reported and confirmed [url=http://www.gog.com/forum/general/i_need_someone_who_owns_the_book_of_unwritten_tales_2_regular_edition_on_gog/post6]here and here, continue. This time the regular edition doesn't seem to have changed (apparently still missing access to the English Windows installer and auto-updater patch). This time there may (or may not) have been changes to the almanac edition, including a changed Mac English installer, a missing Linux English installer, and missing Windows/Mac/Linux German installers. I will return to reporting changes for this game in a normal fashion once GOG finishes playing around with it (i.e. when the regular edition gets its English Windows installer and auto-updater patch back).]





NOTE! CHANGED Armello [Upcoming], languages: Audio and text: English ***TO*** Audio and text: English. Text only: Brazilian-Portuguese, Chinese, German, Spanish, French, Italian, Japanese, Korean, Dutch, Polish, Russian

NOTE! CHANGED Armello [Upcoming], file_size: ??? MB ***TO*** 652 MB

[Installers have also appeared online so I guess the game will be here soon™.]





NOTE! Probably CHANGED FILE Afterlife, all_files, Mac OS X installer, English, dl_ver: ***TO*** gog-11

NOTE! Possibly CHANGED FILE Afterlife, all_files, Windows installer, English, dl_ver: ***TO*** gog-4

NOTE! Possibly CHANGED FILE Afterlife, all_files, Linux installer, English, dl_ver: ***TO*** gog-6

[No changelog. The Windows and Linux may just be menu changes. The Mac is an actual link change.]





NOTE! Probably CHANGED FILE Grand Ages: Medieval, all_files, Original Game: Windows installer, English (part 1 of 2), dl_ver: 1.01-19543.B5 (gog-1) ***TO*** 1.01-19543.B5 (gog-2)

NOTE! Probably CHANGED FILE Grand Ages: Medieval, all_files, Original Game: Windows installer, English (part 2 of 2), dl_ver: 1.01-19543.B5 (gog-1) ***TO*** 1.01-19543.B5 (gog-2)

NOTE! Probably ADDED FILE Grand Ages: Medieval, all_files, GOG version fix [Windows], dl_ver: ***TO*** 1.01-19543.B5 (gog-1) -> 1.01-19543.B5 (gog-2)

NOTE! CHANGED Grand Ages: Medieval, changelog (http://www.an-ovel.com/downloads/chg/chg_1442498547.htm)
NOTE! ADD +++ Patch 1.01-19543.B5 (09.28.2015)
NOTE! ADD +++ Corrected Errors with Crossplay
NOTE! ADD +++ Removed Multiplayer and Achievements disabled pop-up from Main Menu
NOTE! ADD +++ Removed Warning bell when deselecting units





NOTE! Probably CHANGED FILE Witcher 3 Wild Hunt, The, all_files, manual

NOTE! Probably ADDED FILE Witcher 3 Wild Hunt, The, all_files, goodies pack (italian)

NOTE! Probably ADDED FILE Witcher 3 Wild Hunt, The, all_files, goodies pack (spanish)

[No changelog]





NOTE! Probably CHANGED FILE else Heart.Break(), all_files, Linux installer, English, dl_ver: gog-3 ***TO*** gog-4

NOTE! Probably CHANGED FILE else Heart.Break(), all_files, Linux installer, Swedish, dl_ver: gog-2 ***TO*** gog-4

[No changelog]

Also, the compendium was changed: The french version was removed from the zip, but OS X ._* files were added for a couple of languages that are not in the zip. Probably not intended this way... Judas?

I just checked the new bonus files, and the french compendium that was removed from the compendium zip file appeared in the french bonus pack. So nothing missing after all :)

From MaGog's logs for 29 September:

[The Book of Unwritten Tales 2 mess seems to be mostly resolved. There might (or might not) be two files still missing: the Auto-updater fix (at least from the regular edition) and the almanac edition's Critter Color Changer (from the almanac edition only, of course). Both might be intentional. Impossible for me to say.

I cannot tell whether any file has actually changed during this five-day upheaval or whether it has all been just menu changes.]





NOTE! CHANGED FILE Beyond Divinity, downloadables, Mac OS X installer, English (beyond_divinity_1.0.0.7.dmg ***TO*** beyond_divinity_2.0.0.9.dmg; Wed, 13 Nov 2013 12:28:23 GMT ***TO*** Tue, 29 Sep 2015 11:59:31 GMT; 1,284,060,140 ***TO*** 1,292,092,882)

NOTE! CHANGED FILE Beyond Divinity, downloadables, Mac OS X installer, French (beyond_divinity_fr_1.0.0.3.dmg ***TO*** beyond_divinity_french_2.0.0.9.dmg; Wed, 13 Nov 2013 12:33:02 GMT ***TO*** Tue, 29 Sep 2015 12:01:08 GMT; 1,362,400,212 ***TO*** 1,332,312,356)

NOTE! CHANGED FILE Beyond Divinity, downloadables, Mac OS X installer, German (beyond_divinity_de_1.0.0.5.dmg ***TO*** beyond_divinity_german_2.0.0.9.dmg; Wed, 13 Nov 2013 12:31:59 GMT ***TO*** Tue, 29 Sep 2015 12:00:18 GMT; 1,342,636,505 ***TO*** 1,352,730,918)

[No flag, no changelog. Possibly a Galaxy compatibility change.]





NOTE! Probably CHANGED FILE Cosmonautica, all_files, Windows installer, English, dl_ver: 1.1.8 (gog-3) ***TO*** 1.1.9 (gog-4)

NOTE! Probably REMOVED FILE Cosmonautica, all_files, Patch 1.1.8 [Windows]

NOTE! CHANGED Cosmonautica, changelog (http://www.an-ovel.com/downloads/chg/chg_1434623024.htm)
NOTE! ADD +++ Patch 1.1.9 (09.29.2015)
NOTE! ADD +++ Fixed crashes during travelling to campaign-related solar systems (eg. Yike System, Bloom C)
NOTE! ADD +++ Fixed final fight: Mission descriptions now specifically advises to prepare for combat. - - Save games being stuck right before the unresolvable fight will be set back one step. - - Both final enemies are better balanced and now won’t flee anymore.
NOTE! ADD +++ Fixed problem that the campaign mission won’t be removed from the N.O.D.E. after completion, which caused N1L’s messages to continue and prevented the Campaign achievement from being triggered.
NOTE! ADD +++ Fixed issue that caused the game to crash upon arrival on planet Suprafoam in campaign chapter V.
NOTE! ADD +++ Fixed invisible passengers
NOTE! ADD +++ Fixed passengers doing no damage and dirt to their cabin.
NOTE! ADD +++ Fixed crash when passenger cabin breaks
NOTE! ADD +++ Passengers will warn you and leave your ship, if there is too much dirt or damage and if they do not get enough food.
NOTE! ADD +++ Improved hacking efficiency of the navigation systems.





NOTE! CHANGED Armello [Upcoming], bonuses: ***TO*** wallpaper





NOTE! CHANGED Rebel Galaxy [Upcoming], rls_date: Unknown ***TO*** October 20, 2015





NOTE! CHANGED Ronin: Digital Special Edition [Premium], image: http://images.gog.com/4529f9224cf49e73b8118c3c70d7b0ad338e7b2619e2dab8614aa9f9ef88f213_100.jpg ***TO*** http://images.gog.com/75d8d067d3c9b386e97470c5c6243f8fb0ce8b41e8da195e3ca4b007bac7ed5f_100.jpg

NOTE! CHANGED Ronin: Digital Special Edition Upgrade [DLC], image: http://images.gog.com/44cb3761da7ba82c5de0528639c75d3246c7c411bfe0495eb0c2a18fe55d5081_100.jpg ***TO*** http://images.gog.com/bd0f6859280039ecfe01bdf3fb55114be7449d90aa54ad08b7dc71bf0d27c468_100.jpg

All blue ninjas! That's a rare sight ;-)

Glad to hear it's all resolved.

From MaGog's logs for 29 September (part 1 of 2):

NOTE! CHANGED 11th Hour, The, compatibility: ***TO*** Mac OS X 10.11 notice: The System Integrity Protection Feature must be disabled before playing this game.

The same change has also been applied to:
- Atlantis: The Lost Tales
- Avernum: The Complete Saga
- Avernum: Escape From the Pit
- Avernum 2: Crystal Souls
- Baldur's Gate: The Original Saga
- Baldur's Gate 2 Complete
- Beyond Divinity
- Blackwell Bundle
- Blackwell Epiphany, The
- Descent: Freespace Battle Pack
- Duke Nukem: Manhattan Project
- Evil Genius
- Expendable
- Gemini Rue
- Ground Control 2: Operation Exodus Special Edition
- Guilty Gear Isuka
- Guilty Gear X2 #Reload
- Haegemonia Gold Edition
- Icewind Dale Complete
- Icewind Dale 2 Complete
- Iron Storm
- Jack Orlando: A Cinematic Adventure - Director's Cut
- Jagged Alliance 2
- Jagged Alliance 2: Unfinished Business
- Leisure Suit Larry: Love for Sail!
- Lords of the Realm: Royal Edition
- Nancy Drew: Curse of Blackmoor Manor
- Nox™
- Planescape: Torment
- Primordia
- Resonance
- Runaway 2: The Dream of the Turtle
- Septerra Core: Legacy of the Creator
- Shadow Man
- Shivah, The
- Sid Meier's Alpha Centauri™ Planetary Pack
- Smugglers V: Invasion
- Space Colony HD
- Still Life
- Stronghold Crusader HD
- Stronghold HD
- System Shock™ 2
- Temple of Elemental Evil, The
- Total Annihilation: Kingdoms + Iron Plague
- Wizardry 6+7
- Wizardry 8

NOTE! CHANGED Sniper Elite: Berlin 1945, compatibility: Please be advised that Windows 10 operating system will receive frequent hardware driver and software updates following its release; this may affect game compatibility ***TO*** Please be advised that Windows 10 operating system will receive frequent hardware driver and software updates following its release; this may affect game compatibility, Mac OS X 10.11 notice: The System Integrity Protection Feature must be disabled before playing this game, Multiplayer notice:The games multiplayer servers have been taken offline, however, multiplayer over LAN is still available.

NOTE! CHANGED Total Annihilation: Commander Pack, compatibility: Please be advised that Windows 10 operating system will receive frequent hardware driver and software updates following its release; this may affect game compatibility ***TO*** Please be advised that Windows 10 operating system will receive frequent hardware driver and software updates following its release; this may affect game compatibility, Mac OS X 10.11 notice: The System Integrity Protection Feature must be disabled before playing this game, ATI/AMD compatibility notice: Total Annihilation: Commander Pack requires graphic card drivers version 13.4 or older.

[I wonder what all these games have in common.]





NOTE! Probably ADDED FILE SOMA, all_files, Patch 1.02 [Linux]

NOTE! Possibly CHANGED FILE SOMA, all_files, Mac OS X installer, English, dl_ver: gog-3 ***TO*** 1.02 (gog-3)

NOTE! Possibly CHANGED FILE SOMA, all_files, Linux installer, English, dl_ver: gog-1 ***TO*** 1.00 (gog-1)

[No changelog. The two installer changes may be only menu changes.]





NOTE! Probably CHANGED FILE else Heart.Break(), all_files, Windows installer, English, dl_ver: gog-2 ***TO*** 1.0.4 (gog-3)

NOTE! Probably CHANGED FILE else Heart.Break(), all_files, Windows installer, Swedish, dl_ver: gog-2 ***TO*** 1.0.4 (gog-3)

NOTE! Probably CHANGED FILE else Heart.Break(), all_files, Mac OS X installer, English, dl_ver: gog-10 ***TO*** 1.0.4 (gog-11)

NOTE! Probably CHANGED FILE else Heart.Break(), all_files, Mac OS X installer, Swedish, dl_ver: gog-10 ***TO*** 1.0.4 (gog-11)

NOTE! Probably CHANGED FILE else Heart.Break(), all_files, Linux installer, English, dl_ver: gog-4 ***TO*** 1.0.4 (gog-4)

NOTE! Probably CHANGED FILE else Heart.Break(), all_files, Linux installer, Swedish, dl_ver: gog-4 ***TO*** 1.0.4 (gog-4)

NOTE! CHANGED else Heart.Break(), changelog (http://www.an-ovel.com/downloads/chg/chg_1442485613.htm)
NOTE! ADD +++ Patch 1.0.4 (29.09.2015)
NOTE! ADD +++ Added 'HasFunction()' function on all objects.
NOTE! ADD +++ Doors without a code can be unlocked by any key.
NOTE! ADD +++ The SetPosition() function has been removed from the computers who had it, this will invalidate some ways to beat the game that were a bit too boring. These computer have gotten a new function though – GetThingsOfType(), have fun with it!
NOTE! ADD +++ EraseMemory() function for computers with a memory unit.
NOTE! ADD +++ The extractor now has a 'CopyToClipboard()' function.
NOTE! ADD +++ Can't teleport into inventories.
NOTE! ADD +++ Dialogue with the Bouncer in the park can't get stuck in infinite loop.
NOTE! ADD +++ Invariant culture is set by app, should fix bug for some Linux users.
NOTE! ADD +++ An error at Blå Knuten when talking to the bureaucrat in there has been removed.
NOTE! ADD +++ A bug where Pixie wouldn't come out to talk to you has been fixed.
NOTE! ADD +++ Pressing ESC when slurping should not make the game hang with a white screen.
NOTE! ADD +++ Boolean logic should work correctly in all cases (oops!)

From MaGog's logs for 29 September (part 2 of 2):

NOTE! CHANGED FILE Baldur's Gate: The Original Saga, downloadables, Mac OS X installer, English (baldurs_gate_1.0.0.5.dmg ***TO*** baldurs_gate_the_original_saga_2.0.0.2.dmg; Tue, 27 May 2014 09:12:58 GMT ***TO*** Tue, 29 Sep 2015 12:27:49 GMT; 2,044,148,387 ***TO*** 2,027,457,436)

NOTE! CHANGED FILE Baldur's Gate: The Original Saga, downloadables, Mac OS X installer, French (baldurs_gate_fr_1.0.0.3.dmg ***TO*** baldurs_gate_the_original_saga_french_2.0.0.2.dmg; Tue, 27 May 2014 09:17:57 GMT ***TO*** Tue, 29 Sep 2015 12:27:02 GMT; 2,064,649,498 ***TO*** 1,949,339,496)

NOTE! CHANGED FILE Baldur's Gate: The Original Saga, downloadables, Mac OS X installer, Polish (baldurs_gate_pl_1.0.0.3.dmg ***TO*** baldurs_gate_the_original_saga_polish_2.0.0.2.dmg; Tue, 27 May 2014 09:14:19 GMT ***TO*** Tue, 29 Sep 2015 12:30:02 GMT; 2,069,346,738 ***TO*** 2,030,119,361)

NOTE! CHANGED FILE Baldur's Gate: The Original Saga, downloadables, Mac OS X installer, Russian (baldurs_gate_ru_1.0.0.4.dmg ***TO*** baldurs_gate_the_original_saga_russian_2.0.0.2.dmg; Tue, 27 May 2014 09:09:32 GMT ***TO*** Tue, 29 Sep 2015 12:30:36 GMT; 2,057,199,327 ***TO*** 2,082,183,669)

NOTE! REMOVED FILE Baldur's Gate: The Original Saga, downloadables, Windows installer, German (setup_baldurs_gate_german_2.0.0.20.exe; ; Mon, 14 Apr 2014 11:55:58 GMT; 1,755,737,720)

NOTE! REMOVED FILE Baldur's Gate: The Original Saga, downloadables, Mac OS X installer, German (baldurs_gate_de_1.0.0.4.dmg; ; Mon, 16 Jun 2014 08:36:01 GMT; 2,069,920,576)

NOTE! ADDED FILE Baldur's Gate: The Original Saga, downloadables, Windows installer, German AND Mac OS X installer,German (baldurs_gate_the_original_saga_german_2.0.0.2.dmg; Tue, 29 Sep 2015 12:25:27 GMT; 1,771,967,221)

[No flag, no changelog. Possibly a Galaxy compatibility change.]

[GOG bug: The German Windows installer link now points to the German Mac installer (which, BTW, looks significantly smaller than the previous version (1.65GB vs. 1.93GB)).]

Holy cow :O looks like there's a war being fought in the Mac land, thank you mrkgnao :)

"However, they also remarked that by far most users, including power users, will not have a reason to turn the feature off, saying that there are 'almost no downsides' to it." LOL.
https://en.wikipedia.org/wiki/System_Integrity_Protection

They can have my 10.7 when they pry it from my cold dead hands. ;)

If they mean by System Integrity Protection feature the upcoming Rootless protection against malware I can give maybe an explanation. By disabling the root to access system folders malware should not access system relevant parts of the syste anymore. That also means that as user and you can't change relevant parts of the OS, except your software has is licensed by Apple for doing it. Most of the games use wineskin to work on mac, which also needs to install some older software library. I guess that's the problem here. I'm only surprised to see also 11th Hour and Larry 7 in that list, because both uses Dosbox

To disable Rootless you need to boot in system recovery mode and then change by a terminal command the setting. That's not trivial and means it's for most apple user a big problem. It's also not recommeded so far by Apple.

Edit: Wikipedia about SIP/Rootless, maybe easier to understand than my writing:
https://en.wikipedia.org/wiki/System_Integrity_Protection