Adding changenotes

# TS 103 120 v1.23.1

temp, tagged as [spec/103120/1.23.1](https://forge.etsi.org/rep/li/schemas-definitions/-/tree/spec/103120/1.23.1/103120?ref_type=tags) and available [from the ETSI portal as a PDF](https://www.etsi.org/deliver/etsi_ts/103100_103199/103120/01.23.01_60/ts_103120v012301p.pdf)

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Includes the following CRs with Forge changes:

* TS 103 120 CR125 - Adding filename to Delivery Objects ([MR 308](https://forge.etsi.org/rep/li/schemas-definitions/-/merge_requests/308)).

For all changes, including non-Forge changes, see the change history in the published specification.  

# TS 103 120 v1.22.1

TS 103 120 v1.22.1 agreed at LI#71 (Sophia Antipolis, FR), tagged as [spec/103120/1.22.1](https://forge.etsi.org/rep/li/schemas-definitions/-/tree/spec/103120/1.22.1/103120?ref_type=tags) and available [from the ETSI portal as a PDF](https://www.etsi.org/deliver/etsi_ts/103100_103199/103120/01.22.01_60/ts_103120v012201p.pdf)

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No MR information in the Forge.

# TS 103 120 v1.10.1

TS 103 120 V1.10.1 (2021-12) agreed at LI#58e, tagged as [spec/103120/1.10.1](https://forge.etsi.org/rep/li/schemas-definitions/-/tree/spec/103120/1.10.1/103120?ref_type=tags) and available [from the ETSI portal as a PDF](https://www.etsi.org/deliver/etsi_ts/103100_103199/103120/01.10.01_60/ts_103120v011001p.pdf)

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No MR information in the Forge.

# TS 103 120 v1.9.1

TS 103 120 v1.9.1 (2021-07) agreed at LI#57-e (Online, 2021-06-25), tagged as [spec/103120/1.9.1](https://forge.etsi.org/rep/li/schemas-definitions/-/tree/spec/103120/1.9.1/103120?ref_type=tags) and available [from the ETSI portal as a PDF](https://www.etsi.org/deliver/etsi_ts/103100_103199/103120/01.09.01_60/ts_103120v010901p.pdf)

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