This is the Baldi's Basics Classic version list, starting with version 1.0. Version 1.0 is the first version of Baldi's Basics Classic as a prototype upon its release, hence it did not have the version text next to the logo. It was slightly shorter than the more recent updates, with features that were yet to be implemented.
Baldi's speed would become infinitely fast when the player got 12 or more math problems wrong after collecting 4 or more notebooks, with the ruler-slapping sound glitching.
V1.3
Baldi goes much faster after collecting the notebooks, making the game much harder.
Baldi would not slow down when getting more or all problems wrong.
As soon as she caught the player, she would say "Jump rope ten times in a row. Once you do, I'll let you go! E-he-he-he!" before the jump rope minigame began, making it much longer.
V1.1
She would also say "5!" when the player jumped the fifth time, but it and “I wanna play with someone!” overlapped with her saying "Wow! That's great! Let's play again... Sometime soon!"
She could attract Baldi to the player's location once she starts to play with them.
Without the Safety Scissors implemented, there was no way to cut Playtime's jump rope. Thus, being caught at the time would force the player to play jump rope with no way to end the minigame early, unless Gotta Sweep sweeps the player along with Playtime or the player stands in a door and waits for it to close.
After Playtime said "Oops! You messed up!", the line "Let's try again - from the top! Ready? Go!" is used, making the game take longer to complete when the player did not jump over the rope at the right time. It is still used if the player fails to jump a rope for the second time, but it overlapped with another "Oops! You messed up!" line.
There was text saying "Press the space bar to jump!" during the minigame. It was removed because the controls can now be customized.
Principal of the Thing would send the player to detention for eating an Energy flavored Zesty Bar near him due to the "No eating" rule being implemented.
V1.3
Principal of the Thing would not send It's a Bully to detention.
Inside the Principal's office, instead of tables, there were some large globes which blocked the player, but prevented Baldi from seeing them if the player hid behind a globe.
If the player got a problem wrong in the first notebook, it would still stay "WOW! YOU EXIST!".
V1.1
Every time the player got the third problem wrong after the first notebook, then the "WOW! YOU EXIST!" text would overlap the math problem text, and the "I HEAR EVERY DOOR YOU OPEN" or "I GET ANGRIER FOR EVERY PROBLEM YOU GET WRONG" text would not appear.
Bullying was not prohibited, but eating food (Energy flavored Zesty Bar) was. This meant that Principal of the Thing would not send It's a Bully to detention, but he could scold the player for eating a Zesty Bar when he was in their sight.
V1.3
There were four School Rules posters. One at the starting point, another one in the Principal's office, another in the hallway with the green notebook, and one in the east hallway. The poster in the east hallway was removed in V1.4.
