Weekly issue
The week of September 26, 2026
The news in software and AI with its terms explained, a term to learn, a pair people mix up and a quick quiz.
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From Software Dictionary · to you
This week: Google Cloud's API Gateway learns to stream
This week in software & AI
Google Cloud's API Gateway learns to stream
Gateways no longer have to hold a whole request or response before passing it on. In public preview, they can stream data as it arrives over HTTP/2 or chunked HTTP/1.1, Server-Sent Events, WebSockets and gRPC streams: the way chat-style AI answers arrive word by word.
Source: Google Cloud release notes
The words behind itAPI GatewayServer-Sent EventsWebSocketgRPCHTTP/2
Anthropic releases Claude Sonnet 5.5
The new model runs more than 30% faster than Sonnet 5 and costs up to 30% less for most work, at $2 per million input tokens and $10 per million output tokens. LLM APIs charge per token for inference, so a cheaper task is felt by everything built on top.
Source: Anthropic
Term of the week
AI & Machine Learning
AI Agent
An AI agent is a system that uses an LLM to plan and carry out multi-step tasks by deciding which tools to call, observing the results, and acting again.
An AI agent uses an LLM to decide on and carry out a sequence of actions.
Side by side
RAG vs Fine-Tuning
RAG gives a language model relevant documents at question time so it answers from fresh sources, while fine-tuning trains it further to change its behavior.
Read the pageTest yourself
Which term is this?
“The _____ builds concurrent systems from actors: independent units with private state that communicate only by sending each other asynchronous messages.”
- AHigh Availability
- BActor Model
- CHorizontal Scaling
- DKISS Principle
Show the answer
The answer: Actor Model
New on the shelf: 483 new and updated pages
APIBackend & APIs
An API is a set of rules that lets one piece of software request data or actions from another in a predictable, documented way.
DockerDevOps & Cloud
Docker is an open-source platform for packaging an application and everything it needs into a container that runs the same way on any machine.
GitVersion Control
Git is a free, open-source distributed version control system that tracks changes to files over time, so developers can collaborate and undo mistakes.
REST APIBackend & APIs
A REST API is a web API that exposes data as resources identified by URLs and lets clients read or change them using standard HTTP methods.
…and 479 more pages this week See them all in the index
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