The 302s, including the original hand written notes and all subsequent edits, have been available for over a year.
You can see them here.
There weren't any material changes made.
Those are all arguments put forward by the prosecution, and they are all contested. Here is a rebuttal:
“Those changes added an unequivocal statement that ‘Flynn stated he did not’ — in response to whether Mr. Flynn had asked Kislyak to vote in a certain manner or slow down the UN vote [on sanctions],” Powell wrote. “This is a deceptive manipulation because, as the notes of the agents show, Mr. Flynn was not even sure he had spoken to Russia/Kislyak on the issue. He had talked to dozens of countries.”
“That question and answer does not appear in the notes, yet it was made into a criminal offense,” Powell argued in the motion. “The draft also shows that the agents moved a sentence to make it seem to be an answer to a question it was not.”
Earlier this week, Powell demanded in another court filing that the FBI search its internal “Sentinel Database” to uncover any drafts of the 302 which may show substantial changes, after the government argued that any edits to the document, which was filed over three weeks after the interview, were merely “grammatical and stylistic.”
Released text messages between Strzok and Page show that on February 10, the same day that news broke from “senior intelligence officials” that Flynn had discussed sanctions with Kislyak, Strozk told Page that he had updated the 302 form to reflect her edits.
“I made your edits, and sent them to Joe. I also emailed you an updated 302 . . . hopefully it doesn’t need much more editing. I will polish it this weekend, and have it ready for Monday. I really appreciate your times and edits,” Strzok said. 22
On Tuesday night, Powell told Fox News that the letter all but confirms her argument.