In a blog post on Friday, Yahoo announced that is going to be keeping records of your searches for 18 months now,  up from the current policy of 3 months.

Here are the relevant parts of the announcement

“Today, Yahoo! is making an announcement of our intention to change our log file data retention policy to meet the needs of our consumers for personalization and relevance, while living up to their expectations of trust.

“In late 2008, after a careful review of our data systems and needs and after a great deal of discussion among policymakers about how long search companies should hold search log file data, Yahoo! announced a log file data retention policy that set us apart from the rest of our industry. We worked to minimize our log file retention to 90-days for most log file data, noting certain exceptions where we hold raw data for up to 6 months for fraud and security purposes and as long as necessary to meet our legal obligations. Our goal with this log file data retention policy was to continue to offer best-in-class, competitive products while striving to minimize how much raw data we held.”

“Today our goals remain the same – keep data as long as we need to and meet our consumers’ expectations on trust. While these things are fundamental to us, over the past several years it’s clear that the Internet has changed, our business has changed, and the competitive landscape has changed.  We have been reevaluating our log file data retention policy in light of these changes and as a result of this review we are moving to align our log file data retention policy closer to the competitive norm across the industry.  That means that after this new policy goes into effect, we will no longer apply the 90-day retention policy to raw search logs or other log file data.  We will hold raw search log files for 18 months and we will be closely examining what the right policy and time frame should be for other log file data.  In announcing this change, we have gone back to the drawing board to ensure that our policies will support the innovative products we want to deliver for our consumers.”

“Transparency with our users is the foundation of what builds trust. That’s why we are telling our users about these changes now, well ahead of when they go into effect. In the next 4-6 weeks we will begin rolling out notifications across Yahoo! to ensure that we have given clear and understandable notice to our consumers of this change in our policy.  Thirty days after we have completed these notifications, we will put the new policy into effect.  We expect this will occur sometime in mid-to-late July.”