The official Netscape blog has posted up word that official support for the web browser will be shut down by its owner AOL in February 2008:

AOL's focus on transitioning to an ad-supported web business leaves little room for the size of investment needed to get the Netscape browser to a point many of its fans expect it to be. Given AOL's current business focus and the success the Mozilla Foundation has had in developing critically-acclaimed products, we feel it's the right time to end development of Netscape branded browsers, hand the reins fully to Mozilla and encourage Netscape users to adopt Firefox.

Q: What will this mean?
A: We'll continue to release security patches for the current version of the browser, Netscape Navigator until February 1, 2008. After February 1, there will be no more active product support for Navigator 9, or any previous Netscape Navigator browser. This includes Netscape v1-v4.x, Netscape v6, Netscape v7 Suite, Netscape Browser v8, and Netscape Navigator/Messenger 9.

Q: I use Netscape now. Now that Netscape is stopping support, what do I do?
A: The Netscape Team fully stands behind the fine work being done by the Mozilla Foundation. We recommend that you download Mozilla Firefox and give it a try. We know you'll enjoy it!

Q: Will I still be able to use Netscape?
A: You will still be able to download old versions of Netscape from the Netscape Archive (link coming). However, these products are no longer supported. Our recommendation for the nostalgic out there is to download Mozilla Firefox, and add on the Netscape theme and Netscape extensions which are available here.