[v2.0.1]

• Fixed a tile layering issue in 2-A.
• Fixed gears disappearing when touching pipes in 2-A.
• Fixed an issue in 2-3 where enemies could unintentionally appear in the goal area.
• Fixed minor camera issues in 3-2's Toad room.
• Fixed ceiling problems in 5-M2 and 6-1.
• Fixed red coin residue in 5-1 that could trigger unexpectedly.
• Minor gameplay adjustment in the latter part of 8-A Funny Tanks?! Challenge.
• Fixed incorrect icon pointing to Challenge 2 in Map 4.
• Fixed an issue in 5-7 where a hidden ? Block containing a 1-UP Mushroom did not turn gray after being revealed.
• Fixed the 30 Purple Coin door in Peach's Castle not unlocking after meeting the requirement.
• Added a 3-UP Mushroom in Peach's Castle if the player has fewer than 3 lives.
• Fixed crouch-sliding into the ground in Breezy Journey-2.
• Fixed an issue where Legend Minix with 0 lives in the save file would cause a Game Over after death.

[v2.0.2]

• Updated instruction image for mini-games in 1-M1 and 6-M.
• Fixed checkpoint-related issues in some Perfect Run challenges. (This fix caused another bug, which is fixed in v2.0.3)
• Fixed downward pipes' Actives being destroyed in 5-4.
• Fixed incorrect Purple Coin requirement for the 60-coin door in Peach's Castle.
• Legend Minix now displays coin count. Collecting 100 coins grants either +1 Minix life or 10,000 points (system still under development).

[v2.0.3]

• Fixed a bug where the camera would not scroll properly in the bonus room of 8-4.
• Fixed a timer bug after clearing a level of World of Lens, with preventive adjustments to other extra levels.
• Fixed Legend Minix coin count not resetting.
• Legend Minix adjustments:
  • Added a sunglasses Toad in Peach's Castle, hinting at a 500,000 score achievement.
  • Significantly increased coins from pipes.
  • When already at max lives, collecting 100 coins now grants 200,000 points.
  • Adjusted Big Buzzy Beetle Shell mechanics: now moves at Big Green Shell speed, breaks after 3 wall hits (1 fewer than Big Blue Shell).
  • Fixed multiple "Big Spiny" spawning (only 1 Big Spiny and 1 Big Gray Spiny can exist).
• Fixed 8-A and 8-B being impossible to clear in v2.0.2.
• Fixed HARDESTEST level not saving progress after completion.

[v2.0.4]

• Fixed an issue where the Perfect Run Vol.EX achievement could be mistakenly activated under certain conditions.
• Fixed an issue where some levels without a timer could still trigger a time countdown after being cleared.
• Fixed a bug where touching the goal could incorrectly award only 200 points.
• Fixed a color issue with ? blocks in the secret room of 2-5.
• Fixed several issues at the hidden exit of 2-A's "Breakout!" challenge, including a moving 3-UP Mushroom and mislayered blocks.
• Fixed a bug in World of Lens-4 where launching a leftward fireball while entering the goal pipe would cause the camera to scroll incorrectly, making the game stuck.
• Fixed an incorrect goal sound effect when clearing 4-2 of MARII0 F0REEVER V4.44444 on the second playthrough.
• Removed a misplaced off-screen autoscroll trigger in 3-B.
• Adjusted the stomp detection for Cheep-Cheeps in Legend Voyage-1.
• Fixed missing subtitle when completing MARII0 F0REEVER V4.44444 on the second playthrough.
• (Hopefully) fixed an issue in MARII0 F0REEVER V4.44444 on the second playthrough where Bowser could get stuck floating in mid-air.

[v2.0.5]

• Fixed minor background issue in 5-1.
• Prevented Mario from facing left in all Dash Time challenges.
• Fixed an issue in the King of Kings challenge (7-Boss) where dying during the Stage of Montage phase would cause the next life to retain the Montage effect.
• Fixed a missing ViewChange object at the checkpoint of 8-4 in MARII0 F0REEVER V4.44444.
• Fixed an issue where the secret Toad that appears after collecting 120 Purple Coins could still appear prematurely before meeting the condition.
• Fixed a missing path node before 5-B on the World 5 Map.
• Standardized Extra Piece levels to have infinite lives.
• Legend Voyage: when lives reach zero, the player now restarts with 10 lives instead of a Game Over.
• Adjusted starting lives in extra levels: set to 5 (instead of 4) for Breezy Journey and World of Lens; Great Castle now starts with 8 lives.
• Legend Minix will now occasionally provide red mushrooms once the game reaches later stages with increased difficulty, serving as a small relief.
• Added an infinite Fire Flower to the third section of World of Lens-4.
• Fixed a layer issue with the fade mask when clearing 8-!.
• Fixed an issue where the invisible checkpoint before the Bowser battle in 8-! could not be activated outside the black hole.

[v2.0.5.1]

• Fixed a block layer issue in 7-6.
• Fixed the golden pillar's layer issue in 2-A, which was introduced in v2.0.4.
• Fixed magma marker layer issue in 6-2 of MARII0 F0REEVER V4.44444.
• Fixed a bug in 7-M1's "No Regret" challenge where Mario could take damage while the minigame instructions were still being displayed.
• Fixed an incorrect color for the hidden 1-UP mushroom ?-block in 5-5.
• Set the Invincible Star in 5-M2 to stationary.
• Set the BGM in Legend Voyage-6 to continue playing without interruption after death.

[v2.0.5.2]

• Fixed an issue in 5-M2 where the player couldn't obtain the Invincible Star, which was introduced in v2.0.5.1.
• Fixed a color issue in 7-Boss's "King of Kings" challenge, which was introduced in v2.0.5.

[v2.0.5.3]

• Fixed layer issues in 7-3, 8-2, and Great Castle.
• Fixed a minor pipe flaw in Breezy Journey-3.
• Sealed the underside of the airships in 1-7 and Legend Voyage-1.
• Fixed a bug where, after returning to Peach's Castle by pressing F3 during the Xscroll ON! challenge in 7-2, the Xscroll effect would persist in other levels.
• Fixed an issue in MARII0 F0REEVER V4.44444 where the intro scene sometimes failed to jump to the Save Game Room.
• Fixed a bug in 8-4 of MARII0 F0REEVER V4.44444 where, after reviving from a checkpoint and hitting a white switch block to change the BGM, entering a white warp pipe would cause the BGM to stop.

[v2.0.6]

• Fixed a bug where the progress percentage was not immediately hidden after deleting a save file on the save selection screen.
• Fixed an issue in 5-2 where the music marker at the secret room exit was misplaced, causing the level BGM not to switch back when exiting as Small Mario.
• Fixed an issue in 5-A where the area beyond the goal was not properly sealed, allowing the player to die after clearing the level by touching the pole from a high position.
• Fixed the color issue of the hidden Green Mushroom "?" block in 5-7.
• Fixed a bug in Rush Hour Challenges where collecting two clocks of the same color at the same time would only apply the time effect once.
• Fixed a bug in Legend Voyage-6 where Bowser had no sound effect when being hit by beetroots.
• Minor adjustments.

[v2.0.6.1]

• Fixed a layer issue with the Ground Piranhas in 2-2.
• Adjusted the position of a falling platform in 5-7.
• Improved the effect of a hidden Green Mushroom overlapping a Coin Brick in 8-1.
• Fixed an issue in the final Bowser section of 8-! where the player could bypass the ceiling.
• Fixed a conveyor layer issue in 7-6.

Is there a way to look for Changelog?

I don't have an English changelog prepared, maybe I will do this later