Same story up to end of year 5, Snape and Dumbledore come clean about everything otherwise revealed in HBP and DH, Sirius alive
After Fred and George left the school in chaos, the Ministry and School Board believed Umbridge was not capable to run the school any longer. The Minister for Magic, Cornelius Fudge, disappeared without a trace so Rufus Scringemore took over. Dumbledore was reinstated as head of Hogwarts and no portrait of Umbridge was hung in the Headmaster's office. Harry Potter's broom was returned to him. His visions from Voldemort were received and Harry had gone to the Headmaster to try again to ask him for help.
As Harry knocked on Dumbledore's door, he heard voices from within. Snape's usually dully toned voice seemed higher than usual. Dumbledore suddenly opened the door.
"Harry! Speak of the devil and he shall appear. Please, come in and have a seat. Severus and I were just talking about you. How may I be of assistance?"
"Erm," said Harry watching Snape warily. "It's about Voldemort. I think he's got Sirius at the Department of Mysteries."
"Oh," said Dumbledore. "Maybe it's time we explained a few things…"
A few hours later
"It's a lot to take in, Harry, we know it's going to take time to process all this new information," Dumbledore said calmly.
Harry looked at the two professors in a new light, bewildered at how little he understood before.
"As you are a member of the Order of the Phoenix now, you will be allowed some more freedom over the summer holidays however we believe some extra training would be useful while Voldemort is on the rise. You will still return to number 4, Privet Drive..."
"But Professor..." Harry interrupted. "Can I live with Sirius?"
"As I was saying, Mr Potter, you will still return to number 4 Privet Drive until two weeks before school resumes when you will be staying at the Burrow. During your stay at Privet Drive you will be permitted to practise spells and potions in the basement of your aunt and uncle's house."
Harry was confused. "Professor, we don't have a basement."
"Ah! See Harry, magic is a wonderful thing." Dumbledore winked at Harry.
"These potions and spells will be sent to you via post by myself or Professor Snape. We will be the only ones to know what you are doing. You are not permitted to tell anyone what has transpired here this afternoon. You will be able to visit Sirius every second weekend. Also Professor Snape will drop by every Tuesday and Thursday for Occlumency lessons."
Snape raised an eyebrow.
"This training is in order for you to be able to protect yourself and those around you."
A couple of days later
"See you in a couple of weeks," Harry yelled back to Hermione and Ron. "Don't forget to write!"
"Potter," a voice drawled from behind him.
"Ah Malfoy…" Harry said as he spun around to face the blonde, falling onto the Ice Prince himself.
"All right there, Scarhead? Would you remove your hands from my clothes?"
"Sorry," he mumbled. "See you next year, Malfoy. And have a nice summer." Harry added with a smile. This summer was going to be a good one.
Malfoy stared at him in disbelief. Potter had just wished him a 'nice summer'. That Potter boy was just weird. With bad hair, really big clothes and who wears glasses anyway? Yeah, pretty weird.