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Release Notes — Update History

Updates to this site (page additions, expansions, and fixes) are consolidated and recorded on this page, newest first.

  • NEW … a new page or section
  • UPDATE … expansion of existing content
  • FIX … error corrections, broken-link fixes, etc.

October 2026

Date Type Description
2026-10-18 NEW Added 11 chapters to Level ∞ Deep Dive: CM-IDLE / CM-CONNECTED and Service Request, PDR / PDI / F-TEID, QoS Flow / QFI / 5QI, GFBR / MFBR / AMBR / ARP, PCF / PCC Rule, N7 SBI Analysis, AF / N5, NEF / N33, BSF / PCF Binding, NF Set / Binding Indication, SBI Communication Model / SCP
2026-10-18 UPDATE Expanded the Level ∞ chapters NG Setup, Tracking Area, PDU Session Deep Dive and PFCP (cause-based triage, TAI list encoding, T3512, Forbidden TA, N2 SM vs N4, CH flag, typical failure cases, etc.)
2026-10-18 FIX Fixed existing pages for consistency with the new chapters (who sets the QFI on N3, HTTP version on N33, BSF binding keys, SCP vs discovery, T3512 start condition, etc.)
2026-10-02 NEW Added PDU Session Establishment Deep Dive and PFCP / PDR / FAR / QER / URR to Level ∞ Deep Dive

September 2026

Date Type Description
2026-09-30 NEW Added Tracking Area / TAI / Registration Area to Level ∞ Deep Dive
2026-09-26 NEW Added NG Setup Procedure to Level ∞ Deep Dive
2026-09-25 NEW Created a new "Level ∞ Deep Dive" section in the Learning Course, adding SUPI / SUCI / 5G-GUTI and GUAMI / AMF Region / Set / Pointer
2026-09-23 NEW Added shared SVG diagrams to the Japanese and English versions of 16 key chapters across Levels 1–5, covering architecture, trust boundaries, control and user planes, and procedure comparisons
2026-09-23 FIX Reviewed the new diagrams and related text against 3GPP specifications, correcting NF and interface endpoints, message paths, directionality, conditional behavior, and Release status descriptions
2026-09-23 UPDATE Removed open-ended exercises from every chapter with a Practice section, retaining the collapsible comprehension checks. Updated the page template to use the same structure
2026-09-21 FIX Improved the zoom view for Call Flow (mermaid) diagrams: fixed blurring when zoomed in, and diagrams overflowing outside the white panel
2026-09-21 UPDATE Merged the Curriculum page into Home. The learning roadmap (per-Level goals, prerequisite Levels, and the overview diagram) is now reachable directly from Home

August 2026

Date Type Description
2026-08-01 NEW Added Emergency Fallback to Level 4

July 2026

Date Type Description
2026-07-30 UPDATE Added T3502 to the Timer section of the Dictionary