Changelog
What changed, newest first.
Updated terms and privacy, and a clearer analytics choice
- The terms now spell out Free, Plus and Premium, the free first month, coins, mentoring, seminars and gatherings, the weekly letter, learner reviews, messages with our team and what a suspension means. You do not need to accept anything again; the "What changed" list at the top of the terms has the details.
- The privacy policy now covers your optional career profile, the record of weekly letters delivered to you and messages with our team, with how long each is kept.
- If you allow analytics, we now also count which buttons you click and how far you scroll, to find where lessons and labs lose people. We ask again if you said yes before.
- Google Analytics runs only after you allow analytics, with advertising features off; saying no deletes its cookies.
- Our host also counts visits and page speed without cookies. The privacy policy and the cookies notice list everything.
Courses for every role
- Five new lines (Engineering Roles, Cybersecurity, Architecture, Business & Finance and Leadership) and 0 courses on the way, each with its planned lessons and capstone.
- Role paths for 22 jobs, from fresher to senior: data, AI, DevOps, QA, security, architecture, business analysis, finance and leadership.
- Changing roles: what carries over, what to skip and which bridge courses to take, on the paths page.
Kolom opens
- 29 courses on five lines, 323 lessons, each with a podcast episode.
- Checkpoints after each idea, practice tasks with model answers, and auto-checked SQL and JavaScript exercises that run in your browser.
- Flashcards from every lesson, with spaced review.
- The course map, role paths, a placement check on every course page and a five-question starting-point quiz.
- A persistent podcast player that follows along with the page, plays the next episode and remembers where you stopped.
- Search across courses, lessons, sections and the glossary (Ctrl or Cmd and K).
- Offline reading: visited pages work without a connection, and any course can be saved for offline.
- Paid plans waiting list, with prices in your local currency.
- Recently updated courses
- Leading a Tech Department: Head of Engineering to CTO: 20 October 2026, version 1.0
- Engineering Management: 20 October 2026, version 1.0
- From Engineer to Tech Lead: 20 October 2026, version 1.0
- Finance for Tech Teams: 20 October 2026, version 1.0
- Business Analysis: 20 October 2026, version 1.0
- Business and Enterprise Architecture: 20 October 2026, version 1.0
- Software and Solution Architecture: 20 October 2026, version 1.0
- Offensive Security: Ethical Hacking and Pentesting: 20 October 2026, version 1.0