As of 2026-10-21T05:23:30Z: the main change since yesterday is that Braze's Decisioning Studio Go went generally available in its 15 October release notes, which settles one open item from the baseline, while only one item (a Klaviyo blog post dated 21 October) falls inside the last 24 hours.

Email Marketing Automation Watch: Braze Go Confirmed, Klaviyo Composer Now Generally Available

Executive Summary

Email platforms keep moving toward AI agents that run campaigns for marketers, and this run found follow-through on the launches tracked in the 20 October baseline. Braze's 15 October 2026 release notes list BrazeAI Decisioning Studio Go as "General availability". The baseline had only a vendor expectation of 14 October. The same notes list Agentic Standards as "Beta", so that product has not reached general availability.

Klaviyo's news page adds a second data point. A 13 October 2026 post says Composer, its AI marketing agent, is now generally available. That post was not in the baseline. A Klaviyo post dated 21 October 2026 on its K:SGP event (held on Sentosa, per the blurb) is the only item I could date inside the strict 24-hour window, and it is event commentary, not a product change.

The honest read: the gap between announcement and availability is closing at both vendors, but nothing market-moving was dated in the last 24 hours. Small-business branding finally has a dated source, a Benchmark Email 2026 brand report, though it predates the window.