This is what I have found so far:

2005 March ? Algorithm Update - Bourbon

2005 Feb 03 Algorithm Update ? - Allegra/Superbowl

2004 Feb 11 Algorithm Update Brandy

2004 Jan 11 Algorithm Update Austin

2003 Nov 16 Algorithm Update Florida

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Google caffeine is the new search algorithm. The updates of google caffeine are fast, real time, and indexing may change. For more info visit http://caffeinegoogle.net

It is currently 2021 and there has been no algorithm update in April 2023 because it is a date that has not arrived yet. However, search engines such as Google frequently update their algorithms to improve search results and user experience. These updates can happen at any time and are typically announced by the search engine in question. It is important for websites that rely on search engine traffic to stay up-to-date with algorithm updates and adjust their SEO strategies accordingly to maintain or improve their search rankings.

Both uses Distance vector algorithm...... . updates the routing table for every 30 seconds. and in OSPF requires hoping reneval of routing table

What is FIFO algorithm?