This is a very basic feature. Searching by "who" updated something is in just about every system. To point people to plugins is not the right way to do business. You should reconsider this specific issue. I understand some issues being solved by 3rd party plugins, but not something this basic.

Jira Team, Can you confirm if this is complete...do we have updated by or updater or any thing which can help to find out who updated the jira ticket last ...it is available????
Need it asap?

If this is done, kindly let me know what are the steps to find out....I cannot find it in query string on filter.

This will be helpful.

Would like to see this as well.

Oops..wrong ticket. This was resolved. Sorry!

I try to raise the importance of this issue to give it more attention.

Today I tried to find issues updated by someone in the past 7 days and I could not do it. Went to look for a way on google and found my own issue back!

We need this too, specifically so that we can do a Single Level Group By report on updaters, to track adoption of the system within the company.

The Participants custom field in the Toolkit does the job as long as each participant records a comment. (It's installed on jira.atlassian.com).

We need this to let developers find their updates even if issues have been assigned to someone else.

Ditto...as a developer, I have a need to find all the issues I've worked on in the last X days to make sure I've added work log information and add any comments that I may have missed.