Brown, 30, appeared in 127 games with 107 starts in eight seasons with the Bears after arriving in 2002 as a fourth-round draft pick from Florida. The 6-3, 260-pounder ranks fourth in franchise history with 43½ sacks, trailing only Richard Dent, Steve McMichael and Dan Hampton.
Brown sent a message to the team and its fans via his Twitter account late Tuesday night.
"I am extremely grateful for my time as a Chicago Bear and I wish the Bears the best," he wrote. "I am glad that they gave me an opportunity to realize a dream I had as a child. I appreciate the fans, but as we all know, this is the nature of the business. Bear down!"
I know we all, as fans, appreciate his hard work, positive attitude, and dedication to the franchise.
We'll write more about this later this weekend, but please feel free to use this as the post to discuss why this helps or hurts the Bears.