You may consider the 2.4 branch stable -- but I'm still seeing way too
many problems being reported to consider any release of 2.4 for
production work.
Well, the amount of problems being reported might be higher for 2.4. But
this does not say anything about stability of your particular
configuration. One of the reasons for more issues being reported for 2.4
probably is that many deployments were already migrated to 2.4. So
naturally if less people are using 2.3 there will be less issues reported.