Advanced AI into search algorithm BERT
Google Passage-based indexing updates: Sometimes the single sentence answers your question better and it is more relevant to the query, Google now able to index individual passages from the pages, show such passages in SERP. It will affect 7 percent of search queries across all languages.
Greater improvement to spelling detection and improved the ability to understand misspelled words.
Subtopics: Now can better understand relevant subtopics
Improved statistic based query by understanding through data.
Most of these algorithm changes will start rolling out by the end of this year.
Google algorithm update and SEO