I have created in Docushare the DMTR-281 placeholder for this characterization report

A complete draft of the report is at https://dmtr-281.lsst.io/v/DM-27237/index.html.

A few comments:

• The reference in the abstract to the previous release's CMR is not rendering: " can be found in [ ? ]"
• Figure 1: The “regression” ... This isn't strictly speaking a regression but rather a difference in performance between 2 algorithms, jointcal and FGCM. I'd say: "The degraded performance in the photometry metrics after late June was due to the introduction of a new
  photometric calibration method known as FGCM, replacing Jointcal.
• Figure11 : "... The metrics have continued to improve since the introduction of FGCM, but are still worse than previous results using jointcal"
• Section 2: Dashboard summary of performance metrics – I would rename this section just "Summary of performance metrics" and provide a summary of notable metrics or changes, not just those for which we have a dashboard plot. The point is to summarize the performance for this releaser, not the dashboard. E.g. AM2: r and AF2: z show and ~ 20% improvement. What changed? Do keep the dashboard plot, it's very useful, just don't limit the summary discussion to those metrics in the dashboard.

Once comments are addressed, this is good to go. No issues blocking release.

Final version is in docushare at this link