# Change Log Marlin bugfix-2.1.x fork for Ender 3 S1 Pro/Plus/noneProPlus This is a fork of a fork. The initial port of the Creality lcd_rts.cpp was made by Synman. After this i forked Synmans repository and created my own fork. All notable changes to this project will be documented in this file. I hope you like my work. ## [MARLIN-E3S1FORK-BYTT-2-UNRELEASED] - 2023-04-?? (Preview of the next bugfix release) This is a sneak preview of the comming updates. I will edit this file frequently.. ### Added - [MARLIN-E3S1FORK-BYTT-add2] I will include recent marlin commits if they make sense. ### Changed - [MARLIN-E3S1FORK-BYTT-change2] I changed the behavior of the "print" button for the folders and subfolders. Now the print button enters the sd card on first click, and when you are in a folder or subfolder you can go one folder up with the "print" button. Real navigation. ### Fixed - [MARLIN-E3S1FORK-BYTT-fix3] ubl7x7 finished percentage does not match and is stuck at 98%. With this release this visual bug is fixed. ## [MARLIN-E3S1FORK-BYTT-1] - 2023-03-31 This release is called "M600 fix" I also reverted a critical linear advance commit. 2 of about 25 testers experiences printer halts on the skirt. Reverting this commit fixed it for one of them. The second has yet to respond. As i could reproduce this i will push the revert as we did not have this problem before. ### Added - [MARLIN-E3S1FORK-BYTT-add1] Changelog added ### Changed - [MARLIN-E3S1FORK-BYTT-change1] Buffers reduced as they are not needed so high and sometimes lower buffers (faster reaction of the printer) are better. before: #define BLOCK_BUFFER_SIZE 64 #define BUFSIZE 64 #define TX_BUFFER_SIZE 128 now: #define BLOCK_BUFFER_SIZE 16 #define BUFSIZE 8 #define TX_BUFFER_SIZE 128 ### Fixed - [MARLIN-E3S1FORK-BYTT-fix1] Reverted Linear Advance Marlin commit https://github.com/MarlinFirmware/Marlin/commit/ca77850cbb8ed57d4cdcf29a12a278d6bfa5c0d5 - [MARLIN-E3S1FORK-BYTT-fix2] M600 filament runout fixed. You can now use M600 in your gcode.