We only EOL major releases. So when CB 3.x comes out then CB 2.x is EOL. CB 3.x won't be anytime soon; we've a lot to accomplish with CB 2.x still.
Regardless CB is free and there's no reason not to remain up to date in regards to CB. Being up to date just makes providing support significantly easier and if you've hit a bug we've already fixed you're basically out of luck.
Kyle (Krileon) Community Builder Team Member Before posting on forums:
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-- If you are a Professional, Developer, or CB Paid Subscriptions subscriber and have a support issue please always post in your respective support forums for best results!
-- If I've missed your support post with a delay of 3 days or greater and are a Professional, Developer, or CBSubs subscriber please
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with your thread and will reply when possible!
-- Please note I am available Monday - Friday from 8:00 AM CST to 4:00 PM CST. I am away on weekends (Saturday and Sunday) and if I've missed your post on or before a weekend after business hours please wait for the next following business day (Monday) and will get to your issue as soon as possible, thank you.
-- My role here is to provide guidance and assistance. I cannot provide custom code for each custom requirement. Please do not inquire me about custom development.