This page tracks updates to the site — new learning content and site improvements, listed by date.
2026-08-07
Made the mascot dog's logo/favicon cuter: bigger sparkly eyes, a small cowlick tuft, plum-colored glasses, and a tongue color now distinct from the cheek blush
Overhauled the slide structure of "Session," adding coverage of its relationship with cookies, where session stores actually live, defenses against hijacking and fixation attacks, and a comparison with token authentication
Added a "common uses" slide to "Session," covering application-level uses alongside digital marketing and marketing automation (MA) tool use cases
Overhauled the slide structure of "Cache," adding coverage of server-side caching (reverse proxies, application caches), common uses, real-world solutions, what's a good vs. poor fit for caching, and caveats to watch for
Unified the order of "related topics" links across the Web Fundamentals category, and matched the top page's topic order to it (also added missing Cookie/Session/Cache links to Protocol and Request and Response)
Standardized the "hint" (analogy) label wording to "Teacher Pochi's hint" across the site, including topics not otherwise updated in this round
Added slides on practical pitfalls and commonly used tools/techniques to "Business Requirements Definition," "System Requirements Definition," "Basic Design (External Design)," and "Estimation Methods"
Added "practical pitfalls" slides to "SaaS," "Package Software," "Scratch Development," and "No-Code," and a "well-known tools" slide to "Low-Code"
Added a "V-Model perspective" slide to "Waterfall" and a "practical pitfalls" slide to "Agile"
Added a "well-known tools and services" slide to "Jamstack," a "well-known frameworks" slide to "SPA," and "practical pitfalls" slides to "REST API Design" and "Architecture Patterns (MVC, etc.)"
Added "practical pitfalls" slides to "SQL Basics" and "Table Design," and a "stages of normalization (1st–3rd normal form)" slide to "Normalization"
2026-07-22
Overhauled the slide structure of "Domain," adding coverage of URLs, hostnames, DNS, and IP addresses
Overhauled the slide structure of "Protocol (HTTP)," adding coverage of SSL/TLS, public/private keys, certificate authorities, and certificate chains
Overhauled the slide structure of "Cookie," adding coverage of headers, attributes, common uses, tightening restrictions, and alternatives
2026-07-21
Added a Privacy Policy page
2026-07-17
Overhauled the slide structure, diagrams, and explanations throughout "What Are Web Fundamentals?"
Added two new topic pages: "Request and Response" and "Protocol (HTTP)"
2026-07-16
Redesigned the mascot dog with a rounder, plumper "chubby-cheeked" face
Renamed the site from "IT Fundamentals Field Notes" to "Learn IT Fundamentals with Teacher Pochi" (and gave the mascot dog a name: Pochi)
Topic pages now open scrolled straight to the slide content, skipping past the header and breadcrumb
Fixed an oversized top margin in phone landscape mode
Added a call-to-action toward the contact form on the top page and topic pages, inviting feature requests and content suggestions
Added a contact form (feature requests, bug reports, questions)
Added directional slide transitions (next slides in from the right, previous from the left)
Slides now fit on one screen in phone landscape orientation
Added an animated "please rotate your device" prompt for phone portrait mode
Added swipe navigation for slides
Redesigned the logo/favicon as a dog mascot
2026-07-15
Redesigned the logo/favicon (a folded-note + checkmark mark)
Strengthened SEO (OG images, structured data, tightened meta descriptions)
Added all 48 English topic pages
Published learning content across all 10 categories / 48 topics (slide decks with diagrams and relatable analogies)
Rebranded the site (logo, favicon, and name: "IT Fundamentals Field Notes")
Set up bilingual support (Japanese / English) and SEO foundations (sitemap.xml, structured data)
Added the learning-content list (category accordions) to the top page
Learn IT Fundamentals with Teacher Pochi