'Law & Order: SVU': Everything We Know about the Upcoming Season

"Law & Order: Special Victims Unit" has formally been renewed for season 21, and here's everything we know about the upcoming season of the longest-running primetime live-action series ever.

As indicated by NBC, the latest season will premiere on September 26 at 10 p.m. EST. It's not just the fans who are excited as a couple of the drama series' greatest actors took to social media to share their excitement as well.

Ice-T, who portrays Fin Tutuola, said on Twitter:

"SVU has been OFFICIALLY picked up for season #21. Making us the longest running drama in Television History! Respect to the man Dick Wolf and all my past and present Cast and Crew! And definitely ALL the fans!"

His co-star Mariska Hargitay, who has starred as Lieutenant Olivia Benson since season 1, likewise shared her happy thoughts about the apparent renewal. She wrote on Twitter:

"20 years ago, we started a conversation. We're not finished. I'm profoundly proud of how far we've come. Prouder still of how far we'll go. We've all broken this ground together."

The majority of the series' regular actors will come back to reprise their roles. But Philip Winchester, who played the character of Assistant District Attorney Peter Stone, announced that he's no longer returning to the hit show. He wrote on Twitter:

"Sadly for me, Peter stone and his "the facts don't care about you're feelings" attitude will not be returning. A huge tip of the hat to my amazing fans and not so big of fans. You ALL make me work harder. Thank you! See you on the next adventure."

Nobody knows what season 21 will entail. However, it's bound to be must-watch judging from recent remarks made by Hargitay herself.

In a recent interview with PEOPLE, the actress said:

"I feel so newly challenged and inspired and excited, which just surprises me."

The first "Law & Order" spinoff series premiered in September 1999. It was nominated for and won many awards.