Please do not mark this question as a duplicate of Stack Exchange should be capitalized in the copyright (I have just posted my answer there) as that question talks about the proper way to display the company name whereas my question is about the change I noticed in the copyright section of the Stack Overflow Careers website.
I just noticed the following: (Showing only the relavent part)
The footer of the Stack Overflow Careers site currently shows:
site design / logo © 2015 Stack Exchange Inc.
The footer of the Stack Exchange and its Network sites shows:
site design / logo © 2015 stack exchange inc
The legal trademark guidelines page says:
Stack Exchange Inc. is the official name of the company.
Why only Stack Overflow Careers website uses "Stack Exchange Inc." (conforms to the official name) whereas most of the Stack Exchange and its Network sites are using "stack exchange inc" as the company name in the copyright section. Is this something a new change? Can anyone please explain this.