Partial update 28/10 -18, full check 21/10 -18
As a temporary measure, I went through them and made a list of all last revisions up to current date 21/10 -18 (modified timestamp metadata from calibre). Of note, in late April -18, all existing volumes at the time seem to have been revised?;
Latest editions 21/10 -18; (warning, long list...)
Yume Nikki Modified: 24 Apr 2018
Walking My Second Path in Life: Volume 1 Modified: 22 Apr 2018
Walking My Second Path in Life: Volume 2 Modified: 24 Apr 2018
The Unwanted Undead Adventurer: Volume 1 Modified: 16 May 2018
The Unwanted Undead Adventurer: Volume 2 Modified: 17 Jul 2018
The Unwanted Undead Adventurer: Volume 3 Modified: 22 Oct 2018
The Master of Ragnarok & Blesser of Einherjar: Volume 1 Modified: 24 Apr 2018
The Master of Ragnarok & Blesser of Einherjar: Volume 2 Modified: 29 May 2018
The Master of Ragnarok & Blesser of Einherjar: Volume 3 Modified: 03 Sep 2018
The Magic in this Other World is Too Far Behind! Vol. 1 Modified: 17 Apr 2018
The Magic in this Other World is Too Far Behind! Vol. 2 Modified: 16 May 2018
The Magic in this Other World is Too Far Behind! Vol. 3 Modified: 15 Jun 2018
The Magic in this Other World is Too Far Behind! Vol. 4 Modified: 14 Jul 2018
The Magic in this Other World is Too Far Behind! Vol. 5 Modified: 17 Aug 2018
The Magic in this Other World is Too Far Behind! Vol. 6 Modified: 15 Sep 2018
The Faraway Paladin: The Boy in the City of the Dead Modified: 24 Apr 2018
The Faraway Paladin: The Archer of Beast Woods Modified: 24 Apr 2018
The Faraway Paladin: The Lord of the Rust Mountains: Primus Modified: 24 Apr 2018
The Faraway Paladin: The Lord of the Rust Mountains: Secundus Modified: 24 Apr 2018
The Faraway Paladin: The Torch Port Ensemble Modified: 24 Apr 2018
Sorcerous Stabber Orphen: The Wayward Journey Volume 1 Modified: 27 Aug 2018
Seirei Gensouki: Spirit Chronicles Volume 1 Modified: 28 Aug 2018
Paying to Win in a VRMMO Volume 1 Modified: 24 Apr 2018
Paying to Win in a VRMMO Volume 2 Modified: 24 Apr 2018
Paying to Win in a VRMMO Volume 3 Modified: 24 Apr 2018
Paying to Win in a VRMMO Volume 4 Modified: 24 Apr 2018
Paying to Win in a VRMMO Volume 5 Modified: 24 Apr 2018
Paying to Win in a VRMMO Volume 6 Modified: 24 Apr 2018
Outbreak Company: Volume 1 Modified: 24 Apr 2018
Outbreak Company: Volume 2 Modified: 24 Apr 2018
Outbreak Company: Volume 3 Modified: 18 Jun 2018
Outbreak Company: Volume 4 Modified: 22 Jun 2018
Outbreak Company: Volume 5 Modified: 07 Sep 2018
Occultic;Nine Volume 1 Modified: 24 Apr 2018
Occultic;Nine Volume 2 Modified: 24 Apr 2018
Occultic;Nine Volume 3 Modified: 24 Apr 2018
My Little Sister Can Read Kanji Volume 1 Modified: 23 Apr 2018
My Little Sister Can Read Kanji Volume 2 Modified: 23 Apr 2018
My Little Sister Can Read Kanji Volume 3 Modified: 23 Apr 2018
My Little Sister Can Read Kanji Volume 4 Modified: 14 Jun 2018
My Big Sister Lives in a Fantasy World: The World's Strongest Little Brother Modified: 24 Apr 2018
My Big Sister Lives in a Fantasy World: The Half-Baked Vampire vs. the Strongest Little Sister?! Modified: 24 Apr 2018
My Big Sister Lives in a Fantasy World: Humanity's Extinction Happens During Summer Vacation?! Modified: 24 Apr 2018
My Big Sister Lives in a Fantasy World: The Melancholy of the High School Girl Light Novel Author?! Modified: 24 Apr 2018
My Big Sister Lives in a Fantasy World: The Strongest Little Brother's Commonplace Encounters with the Bizarre?! Modified: 24 Apr 2018
My Big Sister Lives in a Fantasy World: Humanity's Extinction Actually Happens This Time With the Evil God's Revival?! Modified: 24 Apr 2018
My Big Sister Lives in a Fantasy World: The World's Strongest Little Brother Vs. The Evil God?! Modified: 24 Apr 2018
Mixed Bathing in Another Dimension: The Hero of the Unlimited Bath Modified: 24 Apr 2018
Mixed Bathing in Another Dimension: The Fervent Sand Baths Modified: 24 Apr 2018
Mixed Bathing in Another Dimension: The Chaotic Stone Sauna Modified: 24 Apr 2018
Mixed Bathing in Another Dimension: The Ancient Seawater Baths Modified: 24 Apr 2018
Mixed Bathing in Another Dimension: The Turbulent Underwater Baths Modified: 24 Apr 2018
Me, a Genius? I Was Reborn into Another World and I Think They've Got the Wrong Idea! Volume 1 Modified: 24 Apr 2018
Me, a Genius? I Was Reborn into Another World and I Think They've Got the Wrong Idea! Volume 2 Modified: 11 Jun 2018
Me, a Genius? I Was Reborn into Another World and I Think They've Got the Wrong Idea! Volume 3 Modified: 11 Aug 2018
Lazy Dungeon Master: Volume 1 Modified: 05 Aug 2018
Lazy Dungeon Master: Volume 2 Modified: 10 Oct 2018
Last and First Idol Modified: 21 Sep 2018
Kokoro Connect: Hito Random Modified: 12 Sep 2018
(Older version (Modified: 22 Aug 2018) contains textless illustrations not present in later revisions. You might want to copy those before updating your copy)
Kokoro Connect: Kizu Random Modified: 24 Oct 2018
JK Haru is a Sex Worker in Another World Modified: 18 Sep 2018
Invaders of the Rokujouma!? Volume 1 Modified: 22 Apr 2018
Invaders of the Rokujouma!? Volume 2 Modified: 22 Apr 2018
Invaders of the Rokujouma!? Volume 3 Modified: 22 Apr 2018
Invaders of the Rokujouma!? Volume 4 Modified: 22 Apr 2018
Invaders of the Rokujouma!? Volume 5 Modified: 22 Apr 2018
Invaders of the Rokujouma!? Volume 6 Modified: 22 Apr 2018
Invaders of the Rokujouma!? Volume 7 Modified: 22 Apr 2018
Invaders of the Rokujouma!? Volume 7.5 Modified: 23 Apr 2018
Invaders of the Rokujouma!? Volume 8 Modified: 23 Apr 2018
Invaders of the Rokujouma!? Volume 8.5 Modified: 23 Apr 2018
Invaders of the Rokujouma!? Volume 9 Modified: 23 Apr 2018
Invaders of the Rokujouma!? Volume 10 Modified: 23 Apr 2018
Invaders of the Rokujouma!? Volume 11 Modified: 23 Apr 2018
Invaders of the Rokujouma!? Volume 12 Modified: 05 May 2018
Invaders of the Rokujouma!? Volume 13 Modified: 07 Jun 2018
Invaders of the Rokujouma!? Volume 14 Modified: 06 Jul 2018
Invaders of the Rokujouma!? Volume 15 Modified: 05 Aug 2018
Invaders of the Rokujouma!? Volume 16 Modified: 10 Oct 2018
Infinite Stratos: Volume 1 Modified: 24 Apr 2018
Infinite Stratos: Volume 2 Modified: 19 Jun 2018
Infinite Stratos: Volume 3 Modified: 20 Aug 2018
Infinite Stratos: Volume 4 Modified: 26 Oct 2018
Infinite Dendrogram: Volume 1 Modified: 22 Apr 2018
Infinite Dendrogram: Volume 2 Modified: 24 Apr 2018
Infinite Dendrogram: Volume 3 Modified: 24 Apr 2018
Infinite Dendrogram: Volume 4 Modified: 22 Apr 2018
Infinite Dendrogram: Volume 5 Modified: 22 Apr 2018
Infinite Dendrogram: Volume 6 Modified: 22 May 2018
Infinite Dendrogram: Volume 7 Modified: 11 Sep 2018
In Another World With My Smartphone: Volume 1 Modified: 16 Aug 2018
In Another World With My Smartphone: Volume 2 Modified: 15 Aug 2018
In Another World With My Smartphone: Volume 3 Modified: 15 Aug 2018
In Another World With My Smartphone: Volume 4 Modified: 15 Aug 2018
In Another World With My Smartphone: Volume 5 Modified: 16 Aug 2018
In Another World With My Smartphone: Volume 6 Modified: 15 Aug 2018
In Another World With My Smartphone: Volume 7 Modified: 15 Aug 2018
In Another World With My Smartphone: Volume 8 Modified: 15 Aug 2018
In Another World With My Smartphone: Volume 9 Modified: 11 Jul 2018
In Another World With My Smartphone: Volume 10 Modified: 20 Sep 2018
If It’s for My Daughter, I’d Even Defeat a Demon Lord Volume 1 Modified: 22 Apr 2018
If It’s for My Daughter, I’d Even Defeat a Demon Lord Volume 2 Modified: 22 Apr 2018
If It’s for My Daughter, I’d Even Defeat a Demon Lord Volume 3 Modified: 22 Apr 2018
If It’s for My Daughter, I’d Even Defeat a Demon Lord Volume 4 Modified: 22 Apr 2018
If It’s for My Daughter, I’d Even Defeat a Demon Lord Volume 5 Modified: 22 Apr 2018
If It’s for My Daughter, I’d Even Defeat a Demon Lord Volume 6 Modified: 28 Jun 2018
If It’s for My Daughter, I’d Even Defeat a Demon Lord Volume 7 Modified: 30 Aug 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 1 Modified: 24 Apr 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 2 Modified: 24 Apr 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 3 Modified: 24 Apr 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 4 Modified: 24 Apr 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 5 Modified: 24 Apr 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 6 Modified: 24 Apr 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 7 Modified: 24 Apr 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 8 Modified: 10 Jun 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 9 Modified: 13 Aug 2018
I Saved Too Many Girls and Caused the Apocalypse Volume 10 Modified: 15 Oct 2018
How NOT to Summon a Demon Lord: Volume 1 Modified: 24 Apr 2018
How NOT to Summon a Demon Lord: Volume 2 Modified: 24 Apr 2018
How NOT to Summon a Demon Lord: Volume 3 Modified: 07 May 2018
How NOT to Summon a Demon Lord: Volume 4 Modified: 23 Jul 2018
How NOT to Summon a Demon Lord: Volume 5 Modified: 08 Oct 2018
How a Realist Hero Rebuilt the Kingdom Volume 1 Modified: 24 Apr 2018
How a Realist Hero Rebuilt the Kingdom Volume 2 Modified: 19 Jul 2018
How a Realist Hero Rebuilt the Kingdom Volume 3 Modified: 24 Apr 2018
How a Realist Hero Rebuilt the Kingdom Volume 4 Modified: 19 Jul 2018
How a Realist Hero Rebuilt the Kingdom Volume 5 Modified: 24 Apr 2018
How a Realist Hero Rebuilt the Kingdom Volume 6 Modified: 19 Jul 2018
How a Realist Hero Rebuilt the Kingdom Volume 7 Modified: 22 Sep 2018
Grimgar of Fantasy and Ash level.1 Whisper, Chant, Prayer, Awaken Modified: 24 Apr 2018
Grimgar of Fantasy and Ash level.2 Everything is Precious Modified: 24 Apr 2018
Grimgar of Fantasy and Ash level.3 You Have To Accept That Things Won't Always Go Your Way Modified: 24 Apr 2018
Grimgar of Fantasy and Ash level.4 The Leaders and the Led Modified: 24 Apr 2018
Grimgar of Fantasy and Ash level.5 Hear Me Out, and Try Not to Laugh Modified: 24 Apr 2018
Grimgar of Fantasy and Ash level.6 Towards a Glory Not Worth Taking Modified: 24 Apr 2018
Grimgar of Fantasy and Ash level.7 The Rainbow on the Other Side Modified: 24 Apr 2018
Grimgar of Fantasy and Ash level.8 And So We Wait For Tomorrow Modified: 24 Apr 2018
Grimgar of Fantasy and Ash level.9 Here and Now, to Far Far Away Modified: 11 Jun 2018
Grimgar of Fantasy and Ash level.10 Love Songs Won't Reach Modified: 15 Aug 2018
Grimgar of Fantasy and Ash level.11 That Time, We Each Dreamed on Our Own Paths Modified: 16 Oct 2018
Gear Drive: Volume 1 Modified: 04 Sep 2018
From Truant to Anime Screenwriter: My Path to “Anohana” and “The Anthem of the Heart” Modified: 16 May 2018
Der Werwolf: The Annals of Veight Volume 1 Modified: 13 Sep 2018
Demon King Daimaou Volume 1 Modified: 22 Apr 2018
Demon King Daimaou Volume 2 Modified: 22 Apr 2018
Demon King Daimaou Volume 3 Modified: 24 Apr 2018
Demon King Daimaou Volume 4 Modified: 24 Apr 2018
Demon King Daimaou Volume 5 Modified: 03 Jun 2018
Demon King Daimaou Volume 6 Modified: 21 Jul 2018
Demon King Daimaou Volume 7 Modified: 24 Sep 2018
Clockwork Planet: Volume 1 Modified: 24 Apr 2018
Clockwork Planet: Volume 2 Modified: 24 Apr 2018
Clockwork Planet: Volume 3 Modified: 24 Apr 2018
Clockwork Planet: Volume 4 13 Oct 2018
Brave Chronicle: The Ruinmaker Modified: 24 Apr 2018
Bluesteel Blasphemer: Volume 1 Modified: 22 Apr 2018
Bluesteel Blasphemer: Volume 2 Modified: 22 Apr 2018
Bluesteel Blasphemer: Volume 3 Modified: 22 Apr 2018
Bluesteel Blasphemer: Volume 4 Modified: 22 Apr 2018
Arifureta: From Commonplace to World's Strongest: Volume 1 Modified: 24 Apr 2018
Arifureta: From Commonplace to World's Strongest: Volume 2 Modified: 24 Apr 2018
Arifureta: From Commonplace to World's Strongest: Volume 3 Modified: 24 Apr 2018
Arifureta: From Commonplace to World's Strongest: Volume 4 Modified: 24 Apr 2018
Arifureta: From Commonplace to World's Strongest: Volume 5 Modified: 24 Apr 2018
Arifureta: From Commonplace to World's Strongest: Volume 6 Modified: 26 May 2018
Arifureta: From Commonplace to World's Strongest: Volume 7 Modified: 13 Aug 2018
Arifureta: From Commonplace to World's Strongest: Volume 8 Modified: 28 Oct 2018
Arifureta Zero: Volume 1 Modified: 24 Apr 2018
Ao Oni Modified: 24 Apr 2018
Ao Oni: Mutation Modified: 08 Aug 2018
Ao Oni: Vengeance Modified: 24 Apr 2018
An Archdemon's Dilemma: How to Love Your Elf Bride: Volume 1 Modified: 23 Aug 2018
An Archdemon's Dilemma: How to Love Your Elf Bride: Volume 2 Modified: 20 Oct 2018
Amagi Brilliant Park: Volume 1 Modified: 13 Sep 2018
[New Life+] Young Again in Another World: Vol. 1 Modified: 24 Apr 2018
[New Life+] Young Again in Another World: Vol. 2 Modified: 30 Apr 2018
[New Life+] Young Again in Another World: Vol. 3 Modified: 16 Jun 2018