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::: {.new-page}
:::

### Issue History {.unnumbered .unlisted}

::: {.list-table .issue-history aligns=l,l,l widths=14,14,65}

* - Issue Number
  - Approval Date
  - Changes

* - [Issue 2][TR-181 Issue 2]
  - May 2010
  - * Original

* - Issue 2 Corrigendum 1
  - November 2010
  - * Document not updated

* - Issue 2 Amendment 1
  - November 2010
  - * Document not updated

* - [Issue 2 Amendment 2][TR-181 Issue 2 Amendment 2]
  - February 2011
  - * Added IPv6 and Firewall Appendices

* - Issue 2 Amendment 3
  - July 2011
  - * Document not updated

* - Issue 2 Amendment 4
  - November 2011
  - * Document not updated

* - [Issue 2 Amendment 5][TR-181 Issue 2 Amendment 5]
  - May 2012
  - * Added Tunneling Annex and IPsec Appendix

* - [Issue 2 Amendment 6][TR-181 Issue 2 Amendment 6]
  - November 2012
  - * Added support M2M SCL Administration as an Appendix

* - [Issue 2 Amendment 7][TR-181 Issue 2 Amendment 7]
  - November 2013
  - * Added ZigBee and Provider Bridge theory of operation
    * Added backup/restore theory of operation

* - [Issue 2 Amendment 8][TR-181 Issue 2 Amendment 8]
  - September 2014
  - * Updated Annex B on tunneling
    * Added GRE, MAP and PCP theory of operation

* - Issue 2 Amendment 9
  - December 2014
  - * Document not updated

* - [Issue 2 Amendment 10][TR-181 Issue 2 Amendment 10]
  - November 2015
  - * No changes to the specification

* - Issue 2 Corrigendum 2
  - July 2016
  - * Removed *SSID* unique key from *WiFi.SSID* object

* - [Issue 2 Amendment 11][TR-181 Issue 2 Amendment 11]
  - July 2016
  - * Added G.fast theory of operation

* - [Issue 2 Amendment 12][TR-181 Issue 2 Amendment 12]
  - March 2018
  - * Added Appendix I, II, IV from TR-157a10 as Appendix XVII, XVIII
      and XIX
    * Added Appendix XX BASAPM and LMAP Theory of Operations
    * Added Annex H from TR-069a5 as Annex C

* - [Issue 2 Amendment 13][TR-181 Issue 2 Amendment 13]
  - September 2019
  - * Unified text for CWMP and USP support
    * Updated references

* - [Issue 2 Amendment 14][TR-181 Issue 2 Amendment 14]
  - November 2020
  - * Added Appendix XXI 5G - Wireline Wireless Convergence and Appendix
      XXII Data Elements

* - Issue 2 Amendment 14 Corrigendum 1
  - November 2020
  - * Document not updated

* - [Issue 2 Amendment 15][TR-181 Issue 2 Amendment 15]
  - January 2022
  - * Converted the document to markdown and extended the Wi-Fi
      Theory of Operation

* - Issue 2 Amendment 15 Corrigendum 1
  - April 2022
  - * Document not updated

* - [Issue 2 Amendment 16][TR-181 Issue 2 Amendment 16]
  - June 2023
  - * Refreshed all diagrams
    * Added ToO appendix for logical interfaces concept
    * Extended advanced firewall appendix
    * Updated Wi-Fi theory of operation

* - [Issue 2 Amendment 17][TR-181 Issue 2 Amendment 17]
  - January 2024
  - * Refreshed some data model diagrams

* - [Issue 2 Amendment 18][TR-181 Issue 2 Amendment 18]
  - July 2024
  - * Fixed logical interface table
    * Added ToO chapter about network interface MTU
    * Manually resized diagrams to look nice
    * Updated all generated diagrams

* - Issue 2 Amendment 18 Corrigendum 1
  - September 2024
  - * Document not updated

* - [Issue 2 Amendment 19][TR-181 Issue 2 Amendment 19]
  - April 2025
  - * Improved firewall configuration appendix
    * Introduced new 3GPP NAS Theory of Operation appendix
    * Deprecated 5G Theory of Operation appendix in favor of the new appendix

* - [Issue 2 Amendment 19 Corrigendum 1][TR-181 Issue 2 Amendment 19 Corrigendum 1]
  - April 2025
  - * Re-export some SVG images to address rendering artefacts from invalid data
    * Adjust the data model paths in the examples to match the recent data model changes

* - [Issue 2 Amendment 20][TR-181 Issue 2 Amendment 20]
  - November 2025
  - * Recreate session management SVG images to match current state

* - [Issue 2 Amendment 20 Corrigendum 1][TR-181 Issue 2 Amendment 20 Corrigendum 1]
  - December 2025
  - * No changes

* - [Issue 2 Amendment 21][TR-181 Issue 2 Amendment 21]
  - June 2026
  - * Added log rotate ToO
    * Added MQTT ToO
    * Added certificate management ToO

:::

Comments or questions about this Broadband Forum Technical Report should be directed to <info@broadband-forum.org>.

### %bbfWorkArea% Work Area Directors {.unnumbered .unlisted}

* Jason Walls, QA Cafe
* John Blackford, Vantiva

### %bbfProjectStream% Project Stream Leaders {.unnumbered .unlisted}

* Daniel Egger, BBF
* Matthieu Anne, Orange

### Acknowledgments {.unnumbered .unlisted}

* Al Morton, AT&T
* Alexandre Abdo, Sagemcom
* André-Jean Côté, Snom
* Arun Jayaraman, AT&T
* Barbara Stark, AT&T
* Boris Vanhoof, Orange
* Charles Foster, BT
* Chen Li, AT&T
* Chris Gray, Orange
* Daniel Egger, BBF
* David Cluytens, Orange
* David Wooley, Telstra
* Gene Wang, Wistron NeWeb Corp.
* Jan Michielsens
* Jason Walls, QA Cafe
* Jef Maerien, Orange
* Johan Jacobs, Orange
* John Blackford, Vantiva
* Ken Kerpez, Futurewei
* Laurent Alarcon, Sagemcom
* Marc Sabater, MoCA Alliance
* Matthieu Anne, Orange
* Mike Talbert, Wistron NeWeb Corp.
* Nabil Bizid, Orange
* Patrick Rogier, Orange
* Ramesh Rajasekaran, Nokia
* Richard Holme, Vantiva
* Samuel Chen, Broadcom
* Srinivas Pappu, AT&T
* Stephen [kiwin] Palm, Broadcom
* Thales Fragoso, Axiros
* Tim Spets, Nokia
* Vimal Kumar, Capgemini
* William Lupton, BBF

[TR-181 Issue 2]: https://www.broadband-forum.org/download/TR-181_Issue-2.pdf
[TR-181 Issue 2 Amendment 10]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-10.pdf
[TR-181 Issue 2 Amendment 11]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-11.pdf
[TR-181 Issue 2 Amendment 12]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-12.pdf
[TR-181 Issue 2 Amendment 13]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-13.pdf
[TR-181 Issue 2 Amendment 14]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-14.pdf
[TR-181 Issue 2 Amendment 15]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-15.pdf
[TR-181 Issue 2 Amendment 16]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-16.pdf
[TR-181 Issue 2 Amendment 17]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-17.pdf
[TR-181 Issue 2 Amendment 18]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-18.pdf
[TR-181 Issue 2 Amendment 19]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-19.pdf
[TR-181 Issue 2 Amendment 19 Corrigendum 1]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-19_Corrigendum-1.pdf
[TR-181 Issue 2 Amendment 2]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-2.pdf
[TR-181 Issue 2 Amendment 20]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-20.pdf
[TR-181 Issue 2 Amendment 20 Corrigendum 1]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-20_Corrigendum-1.pdf
[TR-181 Issue 2 Amendment 21]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-21.pdf
[TR-181 Issue 2 Amendment 5]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-5.pdf
[TR-181 Issue 2 Amendment 6]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-6.pdf
[TR-181 Issue 2 Amendment 7]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-7.pdf
[TR-181 Issue 2 Amendment 8]: https://www.broadband-forum.org/download/TR-181_Issue-2_Amendment-8.pdf