Redmine

For serial migration from another PM system (or master-master integration) I suggest add ability to set dates for issues and their logs\journals in the past on the *create/update* issue methods, and in the *issue journal update* through *REST API*

What i mean ? For example:

<pre><code class="xml">
POST /issues.xml
<?xml version="1.0"?>
<issue>
<project_id>1</project_id>
<subject>Example</subject>
<priority_id>4</priority_id>
<created_at>2001-01-01</created_at> &lt;created_at&gt;2001-01-01&lt;/priority_id&gt;
</issue>
</code></pre>

Or similar like X-Redmine-Switch-User (setting it in HTTP Headers)
<pre>
X-Redmine-Override-Session-TimeStamp: 2001-06-27T17:18:26Z
</pre>