These updates include:
Update (18/02/2019):
- Moved the 3 legendary birds to more logical locations around Johto and Kanto.
Update (24/02/2019):
- Fixed a bunch more glitches such as the Magikarp length bug, Light Ball bug and the Belly Drum glitch.
Update (01/03/2019):
- Adjusted the levels of the 3 legendary birds to have a more appropriate move set when you encounter them.
- Made all but one of the unobtainable decorations unlock upon defeating the Elite 4.
- Made the Gold Trophy unlock upon defeating Red.
Update (21/03/2019):
- Cleaned up the entrance to Cerulean Cave by extending the ledge on Route 4 over the water. This avoids a bug where your sprite disappears when you start surfing off the ledge.
- Cleaned up the added dialogue by replacing instances of “. . .” with “…” to match the rest of the game.
https://www.romhacking.net/hacks/3840/