Chris Withers <chris <at> simplistix.co.uk> writes:
The fix is applied on the trunk, but the problem still exists on the 2.6 branch, 3.1 branch and 3.2 branch.
Which of these should I merge to? I assume all of them?
The performance problem is sufficiently serious that it should be considered a bug so, yes, you should merge to all remaining branches (3.2, 2.6 and 3.1).
Do I need to update any changelog files or similar to indicate this bug has been fixed?
Yes, add an entry to Misc/NEWS under the "Library" section using the appropriate conventions.