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October 2023 paired a solid security patch train with some practical cloud improvements. Adobe shipped 2.4.6-p3, and in parallel 2.4.5-p5 and 2.4.4-p6, addressing security issues and refreshing dependencies. If you were already on 2.4.6, p3 was a low-risk step that reduced noise and kept you aligned with current upstreams.
Cloud infrastructure
On Adobe Commerce cloud infrastructure, incremental upgrades to base images and ECE-Tools let teams modernise services without a major application jump. The work was reviewing Redis, Varnish and RabbitMQ versions, adjusting static content deployment options (SCD), and validating search and queue behaviour after the image bumps. Not a dramatic month — a cleaner, better-tuned baseline going into Q4 trading, which is what you actually want in October.
Security posture
This was the month to enforce least-privilege IAM, rotate long-lived secrets, and turn on audit trails for sensitive actions in CI/CD and admin. On the client side, WAF policies and CDN rules needed aligning with updated CSP directives and any new third-party scripts. Where you can, run CSP in report-only first, review the violations, then tighten.
Operational tidying
A good moment to consolidate: remove unused modules, pin Composer versions, and reindex and warm caches after each deploy so the first visitor after a release does not absorb the cost. On headless builds, add edge caching for GraphQL where it is safe to do so, and make sure session cookies are disabled for anonymous queries.
Recommended actions
Upgrade to the latest p-line (2.4.6-p3 or equivalent) and re-run integration tests.
Refresh cloud build images and confirm Redis, Varnish and RabbitMQ versions meet the support matrices.
Rotate CI/CD credentials and service keys; enforce least-privilege roles.
Pin Composer dependencies with a clean lockfile and verify integrity in CI.
Enable CSP reporting, review, tighten where safe, and align WAF and CDN rules.
What this means for you
None of this is glamorous. It is the work that makes peak season predictable and incident response fast — which is the only measure that matters in November.