Daily brief
The updates that matter to IT teams, every morning: Microsoft, cybersecurity, AI, OpenAI, Claude, Cisco, UniFi and more, each with a plain-English "why it matters". Briefs are kept for one month.
Latest: Sunday 18 October 2026
October Patch Tuesday is the biggest ever, with an exploited zero-day
Microsoft's October 2026 updates fix more than 1,400 vulnerabilities, with about 80 rated critical.
October security updates for on-premises Exchange Server are out
Microsoft's Exchange team has published the October 2026 security updates for on-premises Exchange Server.
GPT-6 arrives in ChatGPT with 'Intelligent UI'
OpenAI launched GPT-6 in ChatGPT on 7 October.
Claude Haiku 5.5 launches and Opus 5.5 fast mode goes live
Anthropic released Claude Haiku 5.5, its fast, low-cost model, on 7 October with a 1 million token context window.
Cisco puts AI agents into Webex meetings, and Google Meet onto Cisco room kit
At WebexOne on 7 October, Cisco announced Claude in Webex, plus AI agents that can be invited into spaces, meetings and calls to carry out multi-step work.
Cisco and NVIDIA plan faster optics for AI data centres
At the OCP Global Summit on 12 October, Cisco and NVIDIA said they will create an open specification for a new pluggable optic running at 400 Gb/s per lane.